Welding Machines

In industrial context, welding refers to a fabrication process that joins materials such as metals and thermoplastics, by causing coalescence. This is typically done by softening the work pieces and adding a filler material, which is often a welding rod, to form a pool of molten material that cools to become a strong joint. Various processes and energy sources are used for welding, such as gas flame, electric arc, laser, electric beam, friction, and ultra sound.

Welding machines can be broadly classified into different categories depending on the type of welding processes and equipment used during the process. Some welding machines use transformers for converting high voltage, low current electricity into high current low voltage, often between 17 to 45 volts and 190 to 590 amperes. These types of welding machines are the least expensive and allow welders to select the output current by either moving the core of the transformer in and out of the magnetic field or by allowing the welder to select from a set of taps on the transformer.

Some welding machines use an internal combustion engine or an electric motor to drive the alternator or generator present in these machines. The process used is similar to transformer based welding machines as power is first converted into mechanical and back to electrical energy to achieve the step-down affect.

Inverter based welding machines use high-power semiconductors such as the IGBT for building a switching power supply capable of handling high loads of arc welding. These machines convert utility electricity into high voltage and store it in a capacitor bank. The stored energy is then transferred to a secondary transformer for producing the desired welding current.

Welding machines have simplified different types of machining jobs undertaken in small and large manufacturing companies. Automated welding machines are also in use and have helped in increasing the effectiveness of welding processes.

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How to TIG Weld Aluminum and Get the Stack of Dimes Look, Even With an Old TIG Welding Machine

Wanna learn how to TIG weld aluminum?

First you need a decent TIG welding machine. Not a great one, just a decent one. Already got one? You might have an old Synrowave 300 or a DialArc, an old Hobart CyberTIG or you might have a brand new Miller Dynasty 350.

Know what? It doesn't really matter. The same principles apply. If you have an old as dirt TIG welding machine, you can still make good aluminum TIG welds. Weld beads that look like a stack of dimes.

First lets look at machine settings:

Set the polarity to A/c (alternating currrent)
Make sure to set the high frequency to continuous
Set the amperage to about one and one half amps per one thousandths of inch of thickness. (up to about 250 amps then things change quite a bit)
Set both the contactor and amperage switches to the remote positon.
Set the argon or argon/helium torch shielding gas to around 15 cfh. (if you are using a #7 cup) less if the cup is smaller.
Notice I said argon or argon/helium? Argon is not the only game in town. In fact, if you TIG weld any aluminum over about .063" thick, adding helium to the mix makes a huge difference.
Now lets talk tungsten electrodes
2% thoriated have received a lot of bad press for the radioactivity issue but they do work.
2% lanthanated electrodes are a really good all purpose electrode...good for TIG welding aluminum as well as steel.
Use the smallest electrode that will get the job done without quivering at max amperage.
Remote amperage control...you need a foot pedal. Period.
Once all the settings are ok, and assuming you are welding on 1/8" thick aluminum, grab a piece of 4043 filler rod in 3/32 diameter (rarely will you use a rod as thick or thicker than the metal you are welding)
extend the electrode tip about 1/4" past the tip of the TIG torch cup and pre purge the gas by tapping the foot pedal.
hold the torch like a big first grade pencil. touch the tip of the tungsten to the metal and then pull it back about 1/8 inch. flip your helmet down and press the pedal to initiate the arc.
don't melt the aluminum right away though, watch the black stuff cook away from the arcs cleaning action before you melt the metal. Then press the pedal far enough to create a puddle that is about 3-4 times the thickness of the metal you are welding.
Now comes the part on how to achieve the "stack of dimes" look. You get that by adding the same amount of rod and by moving the torch the same distance each time you add rod. Add rod, Step ahead 1/8 inch,Add rod, Step ahead 1/8 inch,Add rod, Step ahead 1/8 inch, lather rinse repeat. If you do this consistently, you will get evenly spaced ripples that look like a stack of dimes.

Of course it looks different from underneath the welding helmet and it is harder than it sounds, but this is really how you do it. All that is left is the doing. It takes practice and lots of quality seat time.

To see a Video on TIG Welding Aluminum and how to get the "stack of dimes" look, as well as a whole bunch of TIG, MIG, STICK welding tips and a pantload of other welding information, visit http://www.weldingtipsandtricks.com/.

Also check http://welderreview.com/forney-299-125fc-flux-core-welder-120-volt-125-amp/

Working With a Welding Machine Made Easy

The industrial needs are increasing each day and almost all sector of activity make use of the welding technique in one or the other way. The welding processes have become so important that the companies are hiring welders who have thorough knowledge of the operation process, capacity to read welding symbols from blueprints and advanced working skills. These are basic characteristics that the companies seek in the welders. But the most important thing is the way the welder handles the machine and how he operates it. Certain protective steps should be essentially taken for making sure that the welding process is done safely and efficiently. The following steps would help the welding process easier.

The first and foremost thing to consider is the place where the prospective welding machine would be placed. It is advised to keep the machine in a dry area where air circulation is proper and there is proper ventilation. The air circulation is absolutely important because during welding all sorts of chemical fumes would be emitted following the technological process. Such fumes are hazardous and are highly risky for the operator's health. If at all open air access is not possible, the machine should necessarily have special ventilation which would be placed very close to the machine. Thus the air circulation can be assured to an extent. Moreover it is also important to make sure that there are no flammable substances anywhere near the welding machine. Substances like paints, solvents or any other chemicals of flammable nature increases the chances of accident exposures.

The second important thing would be the cleanliness of the area where welding takes place. The area should be cleaned prior to the welding process since any trace of paint, oil, rust or other impurities can possible reduce the efficient functioning of the welding machine. Here the need for protective apparels arises which is very important. The welder operating the machine should essentially wear protective gadgets like protective gloves which are fireproof, apron and a special helmet along with protective glasses. Such apparels would help the welder to prevent exposure to radiation, sparks, spatters or fumes that occurs during the usage of the welding. Above all, yet another important to be noted is that all the settings of the welding machines should be arranged in accordance with the characteristics of the metal that is going to be welded. If that is not done, then burn outs or low arc penetration would happen.

The welding machines are usually purchased for industrial use but if you are an amateur welder or a novice, you don't need to buy the machines. Evaluate the work before setting out to buy the welding machines and welding equipments. Compare the extent of investment possible along with the desired results. If you are only doing occasional welding, then a rented welding machine is more than enough. But if the welding machine constitute almost 60% of the activity, then it is better to buy one. There are many other cost effective options like purchasing used welders which are reliable due to the liability of the engine.

Gavin Bone is an author for Welders. He has written articles arc welder. For information visit our site Plasma Cutters

Also check http://welderreview.com/160-amp-dual-voltage-input-dc-welder-igbt-inverter-welding-soldering-machine/

How to Choose a Welder - Important Considerations For Researching and Purchasing a Welding Machine

Are you new to welding and interested in purchasing a welder? If so, there are a number of factors that you need to take into consideration in order to choose a machine that's right for you. If you're like most people, the first thing that you'll consider is the price. While price is a significant factor, there are others that are just as important, if not more. By taking the time to evaluate all the choices based upon what best suits your requirements, you'll get much more satisfaction, enjoyment, and use from a welding machine that's right for you.

The first thing to consider is what you plan to do with it. Define the size and type of metal that you'll primarily be welding. The machine power requirements for welding thick aluminum are much different than for welding thin sheet metal. Keep in mind that when it comes to prices, more amperage means more money.

It's also a good idea to factor in the cost of consumables. If you're considering a gas shielded type of welding - metal inert gas, (MIG), or tungsten inert gas, (TIG), - you'll need to know what type of gas is required for the type of metal you'll be welding. Recently the prices of gases, especially shielding gases containing helium, have skyrocketed. Conversely, a stick or arc welder doesn't require shielding gas and can be cheaper in the long run. Along with gases, you'll need to pay attention to the prices of electrodes/welding wire, tips, nozzles, and other related related accessories that are specific to the type of welder that you purchase. Over the course of time, these can have a significant impact on the operating costs associated with your welder.

The power that you have available to run your welder is a very important factor that shouldn't be overlooked. Welding machines are power hungry, and often require more power than what you have available at the point of use. If you don't have enough power to adequately supply one, you'll need to upgrade your service which will add to the overall expense. An alternative to this is an engine driven welder. With the rising prices of fuel though, this may not be the most cost effective solution.

One of the best pieces of advice is to seriously consider a used welder. You'll often find many older welders for sale and there is a good reason for this - old welders were built to last. A properly maintained welder can easily last you for as long as you want. These welders can often be purchased for a fraction of the cost of a new one too.

These are just a few of the many questions you need to ask before choosing a welder. As you can see, it's a lot more complex than driving down to a big box store and buying what's on the shelf. If you educate yourself before you make your purchase, you'll save money, and end with a welder that will be much more useful in the long run.

John R. Thompson has worked in the engineering and construction fields for over 25 years. During this time he has held many different jobs that range from welding/fitting to engineering and project management. On his website you can find much more information related to welding, equipment, safety, and general information related to the welding and construction fields. You can also find a guide on How to Choose a Welder.


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MIG Welders - Why a 115 Volt MIG Welding Machine is the Best Way to Get Started Welding

Before you read this article on 115v mig welders, you need to promise that you will never weld a trailer hitch with anything less than a 230 v mig welder, or a 230 volt arc welding machine...Promise?  OK read on.

115 volt mig welders have some limitations but they are still an excellent way to get started welding. For way less than 500 dollars, you can order a good 115 v  MIG welder online and start practicing welding within a week. (sometimes shipping is even free) What can you get for less than 500 dollars?  You can buy the most powerful 115 v MIG welder available that will weld up to 1/4" steel.

I don't ever recommend buying a 115 v MIG welder that is a flux core only welder...(unless it is a smokin deal like a reputable brand for less than 200 dollars). A flux core only MIG welder is just not versatile enough. Once you add the ability to weld with bare wire, lots of options become possible.

For less than 500 bucks you can buy a Hobart mig welding machine that runs off of 115 volts and welds with bare wire or flux core.

What can you do with a 140 amp 115 volt MIG welding machine?

Fix a lawnmower deck
build up a lawnmower or bush hog blade
make a set of shelves
modify or build a custom bicycle
fix a cracked exhaust manifold ( with a few tricks like preheat and adding a nickel rod with the other hand)
make welding sculptures
weld patches in auto body panels
make shooting targets for your buddies
make a mailbox guard
build beam brackets for an outdoor deck
modify the motor mounts in your brother in laws 1970 Chevelle Hot Rod
The great thing about a 115 volt mig machine is that if you ever decide you need to upgrade to a 230 volt mig welding machine, The 115 volt machine is still very useful because it will run .023" bare wire which is the best thing since sliced bread for welding thin auto body patches.

To learn more about a Hobart Mig Welder along with Down and Dirty welding tips. For TIG, MIG, STICK welding along with a buttload of other welding information, visit http://www.weldingtipsandtricks.com


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Multiprocess Welding Machine - Longevity Welders - And a Chinese Tig Welder Review

Have you seen the multi-process welding machine that Longevity advertises?

Maybe you have been thinking of buying one of these Chinese Tig Welders but you have been wondering if they  are any good at all?

The features of Longevity 160 amp multi-process welders are kind of impressive: 160 amps, ability to tig weld aluminum, can also be used as a plasma cutter and stick welder...Wow!

A good Miller, Lincoln, or Thermadyne Tig Welder Inverter will cost you well over 3000 dollars by the time you get all the extra welding supplies you need  like foot pedal, tig torch, flowmeter, ground clamp and all.

Longevity welders do not have some of the advanced features like A/C waveshaping that the Miller Dynasty 200DX and The Lincoln Invertec v205t have, but the basic features actually are similar...and you cant use the Miller or the Lincoln as a plasma cutter.

So it is very intriguing when you see a Chinese Tig Welder that will also do plasma cutting and stick welding, advertised for around 750 dollars with all the accessories included.

What?  750 dollars? That is like one fourth the cost of a Miller or Lincoln A/C DC tig welder.

So you start wondering to yourself, Is a Lincoln or  Miller tig welder 4 times better?  Am I paying for a name?  That's a lot of money for just a name.

I spent the last several hours looking on internet forums, welding websites, and eBay feedback reports and guess what? The jury is still out on Chinese Tig Welders.  You can find good reviews, bad reviews, and mixed reviews on Chinese tig welders. A lot of the reviews I read were about how the chinese tig welder arrived  somewhat non-functional and damaged in shipment and that a customer phone support call was all it took for the support team to talk the buyer through fixing a loose connection.

And somehow, that was looked upon as a good thing.

I did see one Shocking video review on a Longevity Multiprocess welding machine that I will not soon forget. I am still shaking. I have never seen someone disrespect a welding machine like that.
See this Video Review of a longevity multiprocess welder and while you are at the site, take in some Down and Dirty welding tips.
http://www.weldingtipsandtricks.com/

Cables Used For Welding Machines

This is a very specific cable used for welders called "welding cable". Yes, it's as simple as asking your supplier for welding cable and they will ask you what color insulation and what AWG size you need. There is typically black and red in stock and you can get orange from most suppliers at a slightly higher price.

Residential Welders

Welders used in garages and small shops usually use the smaller AWG sizes of welding cable because they don't require as much power as larger welding machines. Smaller gauge sizes are 6 AWG, 4 AWG and 2 AWG which are cut-to length on many websites online. That means you can buy 84 feet if your application requires that amount. Simply input the quantity, pick the color and on some website you'll be able to get free shipping on order over $250.

Commercial Welders

Larger welding machines used larger cables because they require more power. Be careful because some industrial applications also require approvals, more protection and even more flexibility. Industrial applications have much more going on in the warehouse, or job site, such as multiple welding machines, large equipment and outdoor environmental conditions to worry about.

The industrial style welding cable is referred to as Super Vu-Tron which comes in an orange color jacket for safety reasons. It has UL, CSA and MSHA approvals so that it's much easier to pass inspection when necessary. The insulation is much more durable for added industrial use and daily ware and tare. Super Vu-Tron also uses 34 AWG copper strands instead of 30 AWG copper strands for added flexibility.

Cable Colors

If you're looking for a color of welding cable other than black, red or orange you may be required to purchase a minimum amount and wait about 4-6 weeks. It will have to be manufactured from scratch and, in order for it to be worth it for the manufacturer, there will need to be a minimum amount purchased. Now, your supplier may work with you by purchasing the minimum amount and splitting it with you, since they probably get many requests for it each day.

Cable Lugs

Many suppliers will also have the ability to terminate lugs on each end of the welding cable for you. Lugs can be expensive, depending on the AWG size you're going to be working with, so make sure you ask questions and understand everything about your purchase before buying it. When suppliers add lugs to the cable it may take an additional week or two to receive the product.

Buy welding cable online from WesBell Electronics at www.weldingcable.net. You can also buy Super Vu-Tron Cable on this website with exact cut lengths on both types. WesBell offers free shipping on orders over $250 to anywhere in the continental USA.


Check http://welderreview.com/arksen-arc-welder-250amp-rated-input-voltage-110v220v-dual-mode-red/ as well.

4 Things to Remember When Purchasing a Welding Machine

Like every other product that you buy for your household, spend some time in selecting the right welding machine too. A poorly made and cheap product may do badly, leading to wastage of money.

Buying a welding machine may sound easy, but the variety of products available in the market in terms of brand, make, power and price may easily confuse a buyer. Most often is found that home users fall for the price play. There is a tendency to purchase a less powerful, cheap and local-made machines. In a short course of time, they end up discarding it thinking it is not their cup-of-tea. However, the problem lies with the product, which is poor in performance and is not user-friendly. When buying a welding machine, even for home use, it is a good practice to do a bit of a background check of selected models before purchasing one. Following are a few things you could check while deciding for the purchase:

Suitability of the Product

The first step in selecting the right product for you is to test a some models for their performance, power delivery, usability and duty cycle. If required, hire or buy a used MIG welder to check its suitability for your purpose. Often the cheaper models do not even have the power on and off switch to the wire. This is a big disadvantage as it makes the wire react the instant it touches a metal body causing sparks.

Purchase a Maker of Your Country

When purchasing a welding machine, it is always better to go for a product that is suitable for the working conditions of your country or place. This is important, because the power supply may vary from country to country. Example, in the US, power supply to homes is 110 V and 60 Hz. In China, power supply is 220V and 50HZ, AC. In Taiwan, it is 110 V. Another reason is these machines should comply with the country's laws and regulations.

Ground Wire and Hose Gun

When it comes to welding, it is always good to have a machine with a long ground wire and gun hose. The local, cheap products most often do not have this advantage. Here, it becomes wise to buy a branded high quality used TIG or MIG welder if you cannot afford a new one.

Power Capacity of the Machine

It is always better to go for higher power. It is also important to check the device's duty cycle. A lower duty cycle may lead to overheating of the device, causing frequent tripping of the fuse.

Shop online welding machines for home, business and industrial need at Red-D-Arc Welderrentals.


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What is the Best Welding Machine?

Shopping for a welding machine and wondering which is the best one? Here is my advice: Think about getting more than one. Why?

Because no single welding machine will do everything as well as having different welding machines, each designed to do one process and do it well.

Miller, Lincoln, and Esab all make multi process welding machines in an attempt to please customers who want a "one size fits all" welding machine. There are even Chinese made machines that add in a plasma cutter to the mix.

The problem in this is threefold.

All the hoses , cables, remote controls, and torches it takes to tig, mig, and stick are just plain unmanageable.
When the machine breaks, you are dead in the water, whereas if you have separate machines for each, you can at least get by until you get the broke machine fixed
Multiprocess machines never quite measure up in all three processes...kind of like an old El Camino that was supposed to be both car and truck, and was really not very good at being car OR truck.
Rather than try to buy on machine that does it all, why not buy 2 or 3 used welding machines that are not only a good value but also tried and true machines.

Here are some recommendations:

for Tig and stick, A Miller Synrowave 250 or 300
for Mig, a Millermatic 250 or 200amp mig welder
You can find a Syncrowave 250 on Craigslist for less than $2000 and a Millermatic 250 can be had for less than $750.

It takes a little effort and you may have to drive for a few hours but you will save hundreds if not thousands of dollars as compared to buying new machines or a new multiprocess welder.

PS... Here is a tip for finding things on craigslist. Just type in your keyword into Google along with the word Craigslist.

Jody Collier's web articles on subjects like Welding Certification are full of Down and Dirty welding tips. For TIG, MIG, STICK welding along with a buttload of other welding information, visit http://www.weldingtipsandtricks.com/

Also check http://welderreview.com/lincoln-electric-k2185-1-handy-mig-welder/

Types of Welding Machines

The humans invented the first gas welding torch to locally melt metal with focused heat. These torches made way for arc soldering, which gave even more intense heat. The TIG welder is one of the most versatile welding machines that can pinpoint heat even more, which allows for smaller, precision welds. Another popular type of soldering machine used today is the MIG welder.

Arc welding

Industries use Arc welding or stick welding in a number of applications which includes construction and repair work. This type uses a welding power supply with either direct or alternating current to create an electric arc between an electrode and the base material to melt metals at the fusing point. It's covered with flux to protect the weld area from oxidation and contamination. There are two types of arc welders which include air or oil cooled AC welders or DC welders that use an air cooling system. Arc welding is only limited to soldering ferrous metals.

MIG welding

MIG or metal inert gas soldering is a semi-automatic or automatic arc welding process that is also known as gas metal arc welding (GMAW). The process features a continuous and consumable wire electrode and shielding gas, fed through a MIG torch or the CO2 fusing gun. A direct current power source is usually used with a MIG welder, although alternating current is the second choice. One of the benefits of these soldering machines is that the voltage, amperage and the speed is adjustable. These machines also feature a variety tension and valve to control the flow of gas. A MIG welder used without shielding gas in a process is known as flux core arc welding. In this process the welding wire has a core filled with flux and has a hotter arc capable of welding thicker pieces of metal. A MIG welder used to weld copper, zinc, brass, steel, tin and aluminum. These machines are versatile and easy to learn, and is the ideal choice if you want to work on a variety of metals by purchasing only one welder.

TIG Welding

TIG soldering or tungsten inert gas soldering is a process that involves a non-consumable tungsten electrode which delivers current to the welding arc. Argon gas is commonly used as the shielding gas to protect the weld area from contamination. A TIG welder is typically used to weld thin sections of aluminum, magnesium, copper alloys, and stainless steel. One of the biggest advantages of the TIG welder over the MIG welder is that the operator has extensive control over the weld.

Rent and lease new and used welding machines including used TIG Welders and used MIG Welders. There are many welder rental centers that provide this service.

Also check http://welderreview.com/campbell-hausfeld-115v-arcstick-welder-ws099001av/

Buying or Leasing Quality Refurbished Welding Machines Makes Good Business Sense

Welding machines of various types and sizes used in most factories, construction industries, and manufacturing units; often dictates the kind of job they performs. There are welding machines used for home DIY jobs, but these are smaller units and work well for jobs around the home. During the welding process, the metal joints are heated till they start melting and then joined to the other piece and fused together.

Leased Equipment

Depending on the type of job, there are a range of welding equipment available which use different types of energy sources to do the job i.e., it could be electric, gas, laser, friction, etc. Some of the bigger soldering machines are quite expensive and buying them for just one job does not seem economically sound. This is where it would make more sense to rent a welder from a top soldering equipment renting or leasing company. They would have all the latest types of soldering equipment in stock which could include gas or LPG-driven welders, diesel engine driven welders, TIG welders, stick welders, advanced process welders, etc. They are also perfectly capable of supplying you with accessories needed when performing a welding job from automatic and semi-automatic wire feeders, welding cables, DC converters, etc.

Secondhand Welders

For companies on a tight budget, who do not want the cost of buying a brand new welding machine, there are many vendors having completely refurbished welding machines that can do the work as efficiently as the new one. Their inventory of used welders is quite exhaustive, and includes gas and diesel driven welders, stick and multi process welders, TIG welders, stud welders and other welding accessories. Besides the above, they could also supply diesel generators, power distribution panels, light towers, automatic and semi-automatic wire feeders, etc.

Welding Methods

The type of welding equipment required depends on the job to perform, because soldering is applicable on land, underwater, and even in outer space. However, most of the welding equipment used in factories, construction, and manufacturing are for arc soldering, forge soldering, gas soldering, friction soldering, resistance soldering, robot soldering etc. The most common type of soldering is gas soldering also called oxyacetylene welding, because oxygen and acetylene gases mix to produce a very high temperature at the torch to melt the edges of the metal being worked on. this is very popular as it can be used as a portable system. Arc welding is the process of creating an arc of electric current between the electrode and the material being welded fusing them together.

For companies that cannot afford to buy new or secondhand welding machine and accessories, renting or leasing one for the job makes perfect economical sense.

Red D arc Welderentals™ offers wide range of new and used welding equipments for sale, rent and lease.


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Know What Is Best For You: Top Five Manufacturers Of MIG Welding Machines

MIG Welding is very popular among welders and can be done by both experts and beginners. This is why there is a steady influx of MIG Welders buying MIG machines from companies. Here is a comprehensive list of the five top manufacturers where welders mostly purchase from.

Clarke Welders

Clarke MIG Welders have good reputation in the industry, and they offer affordable machines. Its most famous model is the MIG 135TE which has a non-live torch, a professional look, and a turbo cooling fan. This is ideal for DIY repairs on cars, and other home jobs involving welding.

The other 110 Voltage models are ideal for metals measuring up to 3/16" thick sheet metals such as auto body parts. On the other hand, the 220 Volt ones are better for carbon steel, aluminum, stainless steel, and iron castings that are about 7/16" thick.

Aside from these, what is often most appreciated with this brand is its good warranty and great performance which enables it to compete with the major brands.

Lincoln Electric

MIG Welders produced by Lincoln Electric are best to be used by those who put more prime on the cosmetic appearance of the finished weld. Great, smooth, and clean looking welds can be made from these models because the arc initiated is smooth and will not easily burn thin metals.

Time-efficiency is also another characteristic of Lincoln MIG Welder models which is very appealing. This because there are no slags to chip off after the welding process as the models have spatter levels that are considerably lower than those machines with flux cord. Lastly, they are best to work with aluminum and stainless steel.

Miller Welders

The Miller MIG Welding machines offer top quality models and they have a great variety to choose from. Most of their products are mainly used by/for light to medium fabrication, garage shops, auto body shops, farms and ranches, and other home welding projects.

Miller MIG models are classified into heavy duty and light-medium duty. The former can easily weld 3/8" thick or ½" thick metals in a single pass, depending on the model. The light duty ones can weld 3/16" to ¼" thick metals in a single pass. These brand's products can last longer but costs more than the others.

Hobart Welders

There are a lot of great reviews on this brand and it is also one of the most popularly bought MIG welding machines. They are reliable, durable, and portable which makes work easier to finish. They can also work in mild or solid stainless steel, and can be easily adjusted to accommodate other materials. They also have great warranty offers. Though, unfortunately, they do not weld aluminum well.

ESAB

Versatility and dependability are the marketable qualities of ESAB MIG Welders which puts them stably in the top manufacturers of MIG welding machines. These MIGs can weld different materials and some are even capable of doing TIG and Stick welding. They are, however, designed mostly to withstand construction and other rugged industrial environments where MIG welding machines are used for a long period of time. Since ESAB is a major brand, its parts can be bought in a lot of sources.

Choose well. Because aside from good workmanship, one of the best ways for MIG Welders to show case their experience is in the way they choose their equipment.

Clive is a welder with experience and writes about welders such as Tig Welder [http://www.usawelders.com] options. If you are looking for more information on other type, have a look at Clive's latest article on Mig welder [http://www.usawelders.com] options today.

Check http://welderreview.com/f2c-mig130-gas-less-flux-core-welder-welding-with-spool-wirefan-machine/ as well.

Various Types of Arc Welding Machines

A look at some of the various welding machines and supplies will give you a clear glimpse into their quality and versatility.

The Inverter DC ARC Welding Machine (EWDA Series): There are four different machines in this series. Torch cable and earth cable accessories are available for the entire series.

Features include:
• IGBT module-type control
• Electric shock protection built in
• Electric power conversion efficiency greater than 85%
• High duty cycle
• Automatic output cutoff at high interior temperature

The Inverter AC/DC Tig Welding Machine: There are two different machines in this series. Accessories available for both include torch and earth cables, as well as a regulator.

Features include:

• DC TIG, DC Pulse TIG, DC MMA
• AC TIG, AC MMA
• Arc spot welding
• Crater off/single, repeat selection
• High frequency start
• Pulse width/frequency, after-flow time control
• Up/down slope time control is possible
• Start/crater/pulse current control
• Mild Steel, nickel alloy, copper alloy, stainless, aluminum alloy, titanium alloy

The Inverter Mig/Mag C02 Welding Machine: There are three different machines in this series, both including torch and earth cable accessories.

Features include:
• DC TIG, DC Pulse TIG, DC MMA
• AC TIG, AC MMA
• Arc spot welding
• Crater off/single, repeat selection
• High frequency start
• Pulse width/frequency, after-flow time control
• Up/down slope time control is possible
• Start/crater/pulse current control
• Mild Steel, nickel alloy, copper alloy, stainless, aluminum alloy, titanium alloy

Submerged Arc Welding Machine (Saw and Gouging): There are two machines in this series with available accessories of a welding cable, a carriage rail, and flux recovery.

Features include:

• Application: 1) Carbon arc air gouging 2) Submerged arc welding for various steel products
• Electric circuit automatically operated by the gouging switch and can decrease unnecessary non-load electric power when arc is off
• Feedback of constant current
• Unified PCB, which allows for easy replacement and maintenance
• High efficient Thyristor control
• Main transformer, reactor, and radiator designed to consider temperature characteristics, insulation, and safety factors.

Inverter Plasma Cutter:

Features include:

The beginner can available for easy operation
Cutting is available by contact or non-contact of no-nozzle
High speed cutter is available without thermal distortion
Auto-stop at low voltage, over-current, overheat, air pressure error strong power

Other welding machines and supplies include a "DC Tig Machine", a "Welding Carriage", and more.

The mission is to expand and be competitive in the world market place while maintaining the high quality of their products.

Mike Funes invites you to take a look at Samho Welding Machine Co. A look at some of the various Welding Machines and supplies carried by Samho Welding will give you a clear glimpse into their quality and versatility.

Miller Welders - All Welding Machines Break Eventually - What Then?

Miller Welders are built tough and made to last. But we all know that nothing lasts forever and everything breaks eventually,..You with me?

I like Miller Electric because of their people and their service. The best thing Miller has going for them is that when one of their welding machines breaks, They have great customer support.

Miller welders are tested and tough and even go through a harsh series of tests like the "Arizona room" as well as a salt spray corrosion test to simulate real world conditions and to ensure durability of the product.

But like I mentioned earlier "Everything Breaks eventually". And Miller Welders are no exception. The newer inverter power sources do all sorts of neat things like arc shaping and pulsing but they seem to break more often than the old transformer style machines like the Syncrowave 250.

And just what do you do when your machine breaks?

If you are a weekend warrior welder tinkering in your garage, you might be able to wait for your local welding supply to pick it up and fix it for you....no big deal, so you won't get your brother in laws lawnmower deck fixed for a few more days (he is a jerk anyway).

But what about those of us who are facing a deadline for completing a real paying welding job? If you are in that boat with me, then you know you either need a spare welding machine, or you need to be able to fix your problem quickly and get to welding again.

Miller Electric has a reputation for really good customer support. With a 3 year warranty and availability of parts, Miller can usually get you up and running quickly. And the best thing about them is that they seem to have common sense... And They will usually even work with you in the grey areas.

I am sure there are other welding machine brands available like Lincoln or Esab that offer good customer service but my experience has mostly been with Miller Welders and Miller's Reps...and so far so good.

I remember attending a seminar once where those in attendance were mostly technicians who fixed welding machines.

To a man, they all preferred working on Miller Welders. Not so much because of innovation or simplicity, but they knew they were going to get help when they made the telephone call to Miller's Support Dept.

That sold me on Miller right there on the spot. I have since heard that other welding machine companies have been stepping it up a notch in customer support. I hope that's true. This country needs good products with good support to compete with the cheap Chinese welders on the market.

Miller Welders are tried and true. But what about Chinese Tig Welders? Watch this Brutally honest video review of a Longevity Tig welder. While you are at the site, check out all the down and dirty welding tips For TIG, MIG, and STICK welding , visit http://www.weldingtipsandtricks.com/


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Arc Welding Machine Power Source

For striking a welding arc it is essential to have the desired current in the welding circuit. Depending upon the type of current required (ac or dc) it may be obtained from the following sources.

A welding machine or frequency changer (for ac welding machine).
A dc generator of a welding rectifier (for dc welding).
The no load or open circuit voltage (OCV) should be high enough to strike an arc, but not so high as to endanger the welding operator, for example, for a 2000A transformer the OCV should not be over 90 volts through for lower currents of say upto 600A OCV may be upto 100 volts.
With direct current, the OCV must be at least 30 to 35 volts while with alternating current it should not be lower than 50 to 55 volts. An open welding arc can be sustained at 18 to 40 volts.
The minimum voltage for arc ignition is 25 volts which must be attained within 0.05 second for the maintenance of a stable arc.
The power of the welding source should be sufficient to provide the required welding current.
It should be possible to tap the desired current within the available limits either in infinite steps 9stepless regulation) or in a large number of discreet steps (stepped regulation).
The voltage of the power source should adjust itself rapidly with the change in arc length.
The short-circuit current must be within limits of safety for power source windings.
It should have output characteristics which match the arc characteristics.
It should incorporate a low voltage supply for the operation of auxiliary units.
It should have a desired duty cycle and provide the required volt-ampere characteristics.
It should be light in weight, small in size, low in cost, convenient in service and easy to maintain.
Volt-Ampere Characteristics of a Welding Power Source

All welding power sources have two kinds of operating characteristics viz., static characteristic and dynamic characteristic. The static output characteristic can be easily established by measuring the steady-state output voltage and current by conventional method of loading by variable resistors. Thus, a curve showing the output current versus output voltage for a given power source constitutes its static characteristic.

The dynamic characteristic of an arc welding power source is determined by recording the transient variations occurring over a short intervals in the welding current and the arc voltage. Thus, it describes instantaneous variations occurring over a short interval of time say a millisecond. Arc stability is determined by the combined interaction of the static and dynamic colt ampere (V-I) characteristics of the welding machine power source.

The intrinsic transient nature of a welding arc is the main reason for great importance of the dynamic characteristics of an arc welding power source. Most welding arcs have continuously changing conditions which are mainly associated with striking of the arc, metal transfer from the electrode to the weld pool, and arc extinction and reignition during each half cycle of ac welding.

The transient nature of the welding arc is also due to variation in arc length, arc temperature and electron emission characteristic of the cathode.

The rate of change of voltage and current in arc welding machine is so fast that the static volt-ampere characteristic of a power source can hardly be of any significance in predicting the dynamic characteristic of a welding arc. However, it is only the static volt-ampere characteristics of a welding power source which are supplied by the manufacturer. Through they cannot give the nature of behaviour of the power source regarding its dynamic response but they are of considerable importance in determining the general overall response in controlling the process parameters.

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Things to Consider Before Buying a Welding Machine

A welding machine should be considered a long-term investment which makes it important for potential buyers to consider all of their alternatives before making a purchase. Unfortunately there is no such thing as a universal welding process. The situation will largely dictate which welding processes are suitable and what type of welding machine should be used. Some of the most common welding processes include metal arc welding (MIG), gas tungsten arc welding (TIG), shielded metal arc welding (stick welding or stick electrode welding), and flux cored welding.

The first thing to consider before buying a welding machine is whether or not it is actually the best solution. It is important to know that this is different from plasma cutting. Welding is a process used to join are fastened two pieces of similar metals together by melting and fusing them. On the other hand, plasma cutters are used for cutting in fabricating metal. Many people confuse the two or incorrectly assume welding and plasma cutting can be accomplished with a single machine.

The second thing to consider is what type of material will commonly be welded. Gas metal arc welding is a process which consists of feeding a bare metal filler wire in conjunction with a shielding gas through a hand-held torch unit. On contact it creates the ark which does the actual welding. For the most routine joining applications, a MIG welder is typically the best option. Not only is it the easiest process to learn, but it can weld light gauge material including the most common metals (carbon steel, stainless steel, and aluminum)

The third thing to consider is whether or not there are any time requirements which may restrict the process. This is important because each type of machine has a different duty cycle. The duty cycle is the length of time a welder can be used before it needed to be turned off so that it can cool down. Less expensive welders often have a shorter duty cycle than more expensive welders. Some welders can even continuously run at a 100 percent duty cycle.

The final thing to consider is available power and portability. If the welding machine is being purchased for use in a shop it may not need to be very portable and will constantly have a significant power supplied access. On the other hand, heavy duty field repairs will require a package which can effectively manage different sizes and types of metal while also being easily portable. Welding machines use in field repairs may not have access to electrical hookup which means a gas powered, engine driving generator will be needed to supply welding and auxiliary power.

My name is Rosario Berry, a professional freelance writer, like to introduce Samho Welder Co.. Welding Machines use in field repairs may not have access to electrical hookup which means a gas powered, engine driving welding generator will be needed to supply welding and auxiliary power.

Hobart Tig Welding Machine Vs Miller Diversion 165

Hobart used to be one of the real heavy hitters in the welding machine manufacturing industry. So what happened? The welding supply industry has experienced buy outs and consolidations just like many other industries in the past 20 years or so. Even the welding supply chain I deal with has gone from Holox, to Linde, to Airgas in the last 7 or 8 years. And honestly, there have been some hiccups along the way but that's another story for another day.

ITW - Illinois Tool Works now owns both Miller Electric and Hobart Welding. In order to comply with the Feds rules on monopolies, Hobart has been focusing on welding machines under 250 amps.

In other words, the hobbyist market.

Does that mean that Hobart Tig and Mig Welding machines are toys that are only suitable for weekend warriors?

Absolutely not.

Take the Hobart TIGMATE AC/DC Stick and TIG Welding Machine for example. It is a fully functional Tig welder that can weld aluminum as well as steel, stainless steel, and cast iron. Hobart's specifications state it can weld aluminum up to 3/16 thick but realistically, with only 165 amps, you might be yawning while you wait for a puddle. 1/8" thick aluminum should be no problem with 165 amps...even with a 20% duty cycle. Especially if you use a 50/50 helium argon mix.

The low end minimum arc start amperage is listed at 20 amps for welding steel on DCEN. That could be a real issue on really thin body panels or thin wall chromoly tubing. It can be overcome by using a small piece of copper to start the arc.

Have you heard of Hobarts 5/3/1 warranty? It means 5 years on the transformer and main components, 3 years on the pc boards, and knobs etc, and 1 year on the peripherals like regulators, torch, etc. Not too shabby.

So what's the problem? This little sucker is listed at 167 lbs for the shipping weight. Wow!

20 years ago that would not have even raised an eyebrow. But now that inverter power sources are available, 167 lbs seems really heavy for a 165 amp tig welding machine.

That makes me want to keep shopping...So Lets look at another option.

The Miller Diversion 165 is a very comparable to the Hobart Tigmate. Duty cycle is almost identical, accessories are the same since both the Miller and Hobart TIG welding machines come with torch, regulator, and everything else needed to tig weld except a cylinder of argon.

But the thing that interests me most about the Miller Diversion 165 is that it has a low end arc start of 10 amps. So the bottom line is that the Diversion has even better capabilities than the Hobart TIGMATE and it weighs less than 1/3 as much (about 50 lbs). That is because the Diversion 165 uses inverter technology to greatly reduce the weight of the transformer.

The prices of the 2 tig welders are almost identical, the warranties are very similar. But the weight and the low end arc starts are enough to make the big difference.

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Portable Welding Machine - A Boon to Welders

Many welding operators need to move from one place to another. A portable welding machine is must with large multiple plants as they need to move around and it is undecided where it is going to be needed from one hour to the next. It is a known fact that the right kind of equipment for the job can save you time and increase productivity. These units are handy and advance and suitable for all applications, productions, maintenance and special purpose welding.

To provide necessary volts and amperes to the portable welding machine they are connected to generators. For them to work they require a prime mover, an electric motor or fuel powered engine. With some places having direct and other alternating there can be many problems with the device. So without the correct set up the machine would not work. To eliminate this problem, today the engine driven prime mover, fueled by gasoline, kerosene or natural gas provides the best solution for consistent and stable electricity.

Arcon develop one of the most rugged and reliable portable welding machines. Arcon Welding LLC was founded in 1999 as today it is the industry leader. Its workhorse series of portable arc welders are considered to be the most reliable stick, TIG, MIG and Stud welders. It is truly called the welding professionals daily companion. It is the only mobile constant power unit in the market. It is built for TIG welding with an industrial robot with time proven SCR inverter type power supply. It is light and weighs only 80 pounds. It features built in circuit breaker and provides 5 zone of thermal protection. It is corrosion resistant and has smooth welding.

The stud horse by Arcon is the first portable unit on the market capable of welding up to 5/8 inch full base studs with the welding current capacity of 1200 amps. It welds steel, stainless steel and aluminum. It weighs 80 lbs and comes with five years warranty against corrosion related failures in natural environment. It has digital time current set up and to withstand toughest natural environments it features solid fiberglass case. Arcon has a welding machine to meet different needs and operations. They have selected combinations that can be best used for the smoothest welding conditions.

While choosing a portable welding machine it is important to understand the nature of the work. A MIG device has greater speed but a TIG weld will be better quality weld. For manufacturing highly visible consumer products TIG is best as it delivers better appearance. MIG or Stick unit is preferred while thick metal as they put more heat into the metal. A simple MIG machine is good for hobbyist as they do not need sophisticated high tech TIG machines. Select the machine depending upon your need and work nature.

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The Need of Welding Machines in the Various Industries!

Discussing the need of machines in an array of industries

The requirements of the welders in different industries are as follows -

These machines are required in the manufacturing of transformer, machine parts, fabrication along with the electronic control manufacturing. The automotive industries totally depend on these machines for providing them the shapes and designs to the vehicles.
These are also required for controlling and giving special designsin steelprocessing industries and also for the steel plants.
The special purpose of the welding equipment's is required to provide the designs for the customer's job and the production requirements. Automation of SPM machines also comes under this welding category.
The machines include the requirements for the minimum overlap of the welders along with the prep lap welding and the C frame equipment's.
These machines are also useful to the wire industries producing cable, wires, wire ropes and other wire products.
What is a butt welding machine and its advantages?

The demand of the various products is increasing day by day. Thus it is very essential to improve the quality of the machines in every aspect. The butt welding machine is one of the latest resistance machines that fulfill the requirements by providing 25% higher joint strength than the parent metal.

They offer the following advantages to the clients

The machine is portable in size and it can be easilymoved from one place to another in the trolley.
The most important advantage of this machine is its operation. It is much easy to operate and anyone can easily do.
The housing of the main body controls and welding transformer is ventilated and the construction of the steel alloy makes it perfect.
How to pick the apt welding machine?

The welders are the requirements of the industries in cases of perfect construction and to design different objects. There are different types of machines which are available that works mostly on arc welding as well asresistance welding. The metal is the substance that needs to be welded. Now the most important thing is that how should an industry pick the right machine on a good deal? The answer must be the dealing process of the industry with the reliable provider. Dealing with a professional who has the perfect knowledge regarding the different types of welders can offer a better guidance.

The demand of products enhances the using of welding machine and thus the various industries needs the latest technology.

Explaining exactly what a flash butt welder machine is; its advantages are also mentioned. At the end, it is elucidated how one can find the correct welding machine and get a good deal on it.

Laser Welding Machine - A Great Way To Start Your Own Business At Home And Quit Your Day Job

If you're looking to buy the right kind of laser welding machine in there a few things that you need to be aware of before making your purchase. The laser welding machine is a big investment that shouldn't be taken lightly. Do your research and make sure you buy the right one that suits your needs.

If you use this kind of machine correctly you should be able to all sorts of things to help enhance your business. Perhaps also you are looking to start a laser business by making engravings and such things. The laser welding machine is a perfect addition to this sort of business. What can you do with that?

With a laser machine you can start an engraving business. If you buy the record a machine you should have a laser welding computer built right into it to help you make the precision cuts that you need to make. One of the best machine to forget is the laser Star technologies laser welding machine. This is a great machine because it can move found from most of the laser welding suppliers.

Things he can make with your laser machine include iPod engravings, little trinkets, and other gifts that people seem to love. There is no end to the amount of things that you can engrave with your laser engraver. The welding comes easily for you if you are patient and you read the manual correctly.

It's amazing what you can do with your laser machine at home. All you have to do is install the fan in your basement in order for the heat generated by the machine to cool down, and then you can put your machine upstairs. Therefore you can work from the comfort of your own office with your laser machine and have it make very little noise. If you're looking to become self-employed then this is the right kind of idea for you because the startup costs are a little expensive. The most expensive lasers can cost up to $20,000, but you don't necessarily need to pay that much. If you do enough research you should be able to find a quality laser machine for around $500, and that can be written off as a business expense.

In conclusion, welding equipment can be a great addition to any sort of home business, especially if you want to escape the workforce. Just do your research and buy a laser welding machine that will be high and quality and reasonable in price.

Do you want to find the best laser welding machines available online?

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Basic Function of Semiautomatic MIG Welding Machine

MIG WELDING MACHINE

Functioning a satisfactory MIG Welding process requires more than just semi operative skill. The setup, voltage, current, electrode extension, and welding angle, as well as other factors, can dramatically affect the weld produced. The very best welding conditions are those that will allow a welder to produce the largest quantity of successful welds in the shortest period of the time with the highest productivity. Because these are semiautomatic or automatic processes, increase productivity may require only that the welder increase the travel speed and current.

MIG WELDING MACHINE SETUP

In complete MIG welding machine setup, we require GMAW or MIG power source, welding torch, wire feeder unit, shielding gas supply, gas regulator, flow meter & heater, shielding gas hoses and MIG wire.

If the shielding gas supply is a cylinder, it must be chained securely in place before the valve protection cap is removed. Standing to one side of the cylinder, quickly cracked the valve to blow out any dirt in the valve before the flowmeter regulator is attached.

Install the reel of electrode (welding wire) on the holder and secure it. B sure the power is off before attaching the welding cables. The electrode and work leads should be attached to the proper terminals. The electrode lead should be attached to electrode or positive (+). If necessary, it is also attached to the power cable part of the gun lead. The work lead should be attached to work negative (-).

CHECK WIRE FEEDER UNIT

Using the MIG Welding Machine that was properly assembled, we need to turn the machine on and thread the electrode wire through the system. Switch on the power and check the gun switch circuit by depressing the switch. The power source relay, feeder relays, gas solenoid and wire feeder motor should all active.

Cut the end of the electrode wire free. Hold it tightly so that it does not unwind. The wire has a natural curve that is known as its cast. The cast is measured by the diameter of the circle that the wire would make if it were loosely laid on a flat surface.

Note: With the wire feeder running, adjust the feed roller compression so that the wire reel can be stopped easily by a slightly pressure. Too light a roller pressure will cause the wire to feed electrically. Too high a pressure can turn a minor problem into a major disaster.

GAS DENSITY AND FLOW RATES

Density is the chief determinant of how effective a gas is for arc shielding. The lower the density of a gas the higher will be the flow rate required for equal arc protection. Flow rates, however, are not in proportion to the densities. Helium, with about one-tenth the density of argon, requires only twice the flow for equal protection.

ARC VOLTAGE AND AMPERE CHARACTERISTICS

The arc-voltage and amperage characteristics of MIG Welding are different form most other welding processes. The voltage is set on the welder, and the amperage is set by changing the wire feed speed. At any one voltage setting the amperage required to melt the wire must change as it is fed into the weld. It requires more amperage to melt the wire the faster it is fed, and less the slower it is fed.

ELECTRODE EXTENSION

Because of the constant-potential (CP) power supply, the welding current will change as the distance between the contact tube and the work changes. Although this change is slight, it is enough to affect the weld being produced. The longer the electrode extension the greater the resistance to the welding current flowing through the small welding wire.

With a standard MIG Welding CC power supply this would also reduce the arc voltage, but with a CP power supply the voltage remains constant and the amperage increases. If the electrode extension is shortened, the welding current decreases.

WELDING GUN ANGLE

The term welding gun angle refers to the angle between the MIG Welding gun and the work as it relates to the direction of travel. Slight changes in the welding gun angle can be used to control the weld as the groove spacing changes. A narrow gap may require more penetration, but as the gap spacing increases a weld with less penetration may be required. Changing the electrode extension and welding gun angle at the same time can result in a quality weld being made less than ideal conditions.

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Methods of Arc Maintenance in Welding Machine

Once a stable arc with proper thermal equilibrium has been established, it is essential to maintain it so that welds of consistent quality can be achieved. Normally, it is not difficult to re-ignite a stable arc, if it goes off momentarily. Whereas thousands of volts may be required to initiate an arc in TIG welding machine (gas tungsten arc welding), it may require only tens or at the most hundreds of volts to reignite it.

Maintenance of an arc when welding with an ac power source is rather a problem because the arc extinguishes every half cycle when the current is zero, that is, it will extinguish 100 times a second with a normal 50 hertz mains supply. For re-ignition the required voltage must be available at the time the current is zero. This is achieved in ac welding by keeping the current and voltage waves out of phase by using a power source with a low operating power factor of about 0.3.

For these conditions, almost the full OCV (open circuit voltage) is available to re-ignite the arc while the current is zero. The operating power factor of a power source can be improved while maintaining the ease of re-ignition only by using auxiliary means of maintaining or re-igniting the arc, for example, a high frequency high voltage spark gap oscillator can be used to supply a high voltage pulse at the appropriate instance. If such a technique is used to maintain the arc, then the power factor of normally adopted for gas tungsten arc welding using an ac welding power source. The situation can be further improved by using thoriated electrode with better electron emitting property.

Similarly, in arc welding machine (shielded metal arc welding) the electrode coatings with lower ionisation potential help in easy re-ignition of the welding arc.

In dc welding machine the arc maintenance is rather easy and it is only at the time of short-circuit between the electrode and the workpiece that the arc is extinguished. However, this problem is solved by providing suitable dynamic volt-ampere characteristics of the power source. Here again electrode coatings with low ionisation potential or with better emissivity can help in easy initiation and maintenance of the welding arc.

Role of Electrode Polarity

Arc welding machine can be carried out either by ac or dc. If ac is employed there is no question of electrode polarity as it changes every half cycle. However, if dc is used it is possible to make electrode either negative or positive.

More heat is produced at the anode therefore in all processes using non-consumable electrodes it is better to connect the electrode to the negative terminal to keep the heat losses to maintain. However, it may not be always possible to do so because, at times, the cleaning action of the mobile cathode spot needs to be utilised to release the tenacious refractory oxide layer from the metal, for example, in welding aluminum and magnesium. In such cases it is preferable to use ac so as to make compromise between thermal efficiency and cleaning action. Thus TIG welding machine (gas tungsten arc welding) and carbon arc welding machine processes normally employ ac power sources when cleaning action on the work piece is necessarily needed. When such a compulsion is not there than dcen may be used.

When consumable electrode is used, the metal transfer from the wire electrode to the work piece is more uniform, frequent and better directed if the electrode is made the positive. DCEP or reverse polarity is, therefore, popular with mig welding machine (GMAW) which also provides necessary cleaning action on metals with tenacious oxide layer such as aluminum.

MIG Welding Basics on MIG Welding Machines

MIG welding machines can be broken up into four basics main parts or areas that are very critical to the successful operation of the machine.

These are all MIG welding basics that you need to know.

The first area I will talk about is the power supply. The power supply on any MIG machine is a key area in which controls many variables. Some of the "made to a price" MIG machines are very basic in their functions and abilities. Take for example a small 110Volt or 220volt hobby or DIY type welding machine.

A lot of these machines will be made to run at very low maximum amperage outputs. They will have lower duty cycles and often used aluminium windings in the power sources.

Now lets take a comparative look at a tough industrial high workload MIG welding machine like an OTC Daihen XD400 or XD500.

First thing you will notice is the sheer size of this machines power supply compared to that of a smaller hobby welder. The maximum power output will be much higher and this machine will run day and night in a production environment hassle and trouble free. The duty cycle will be much longer and there will also be a better current output from the machine which means you will have far superior weld beads.

The second area is the torch, or the MIG welding gun. Once again on the lower end of the scale, the guns that are supplied with the cheap MIG welders are usually proprietary to that particular brand of welding machine. The MIG torch welding consumables will not be as "main stream" and the quality of the actual welding torch can be of much lesser quality and durability, which will lead to failures and lots of swearing and cursing.

Industrial MIG welding guns will offer higher duty cycles, many more consumable options, longer service life and a wider availability of spare. Also these industrial trade quality MIG welding guns will be more comfortable to use which means less user fatigue, they will have smoother feeding resulting in far superior welds and if you are in business the reliability of these torches will save you money.

The third most important aspect of any MIG is the MIG welding wire. The MIG welding wire is absolutely critical in the MIG welding process. Selecting a quality MIG welding wire is often very hard to do. Unfortunately people buy MIG wire on price and usually price only.

Sadly though, cheap things are not good, and good things are not cheap. This is very true with MIG welding wire. The cheap wires will have bad copper coatings, sometimes even being sold with rust on the wire itself. The wire diameter tolerances will not be consistent which will result in irregular wire feeding, which will then result in burn backs, which will then result in having to replace contact tips which cost money and then you loose the production time as workers are walking around fixing welding machine feed problems all day.

The fourth and last critical area on a machine is the earth clamp or ground clamp.

You have to remember that when you are welding, you are simply creating an electrical circuit. And for that circuit to complete you must have a good earth connection. This can be solved by having an earth clamp that has clean contact faces. Over time little arcs will form on the ground clamp which will hinder its operation.

Then if you put the earth clamp onto rust steel or painted steel it will be much harder for the power source to complete the welding circuit. Resulting in the person welding getting angry because his MIG welder isn't working properly.

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You can also see some picture, diagrams and videos.

MIG Welding Machines and Allied Facts

MIG welding is one of the simplest ways of welding, but it does need a good practice to perform such kind of welding. With the perfect tool and the requisite experience you could carry out the best quality welds with the help of MIG welding machines.

Usages of MIG Welding Machines

MIG welding is typically used to join aluminum and other metal sheets basically softer metals. MIG welding is used where high diffusion power is not required and the sheets to weld are of around one eight of an inch thickness. If you are working on thicker sheets it is advisable to go ion for the system that can support 230 volts. If commercial project of welding is your cup of tea, then you much take help of a plant with high amps somewhere more than 200 amps.

MIG goes to explain metal inert gas welding. The name is lifted from the welding that is done using inert gas as a shield to protect the weld pool and it also works as a flux for the welding goal.

When doing stick welding, the flux is there on the stick or the filler rod, under these circumstances the shield comes in the form of inert gas.

How to Buy One

It has been often felt that welding plants are a bit expensive and establishing welding equipment for personal use is something too expensive and out of reach of an individual. This is not the truth though. One can buy a MIG welding machine for a couple of hundred dollars, if one is going to use this welding equipment not that frequently then it is better to go for some better welding machines and may be better in use and less expensive and also and my may become the neighborhood favorite.

Guidelines to Use

When performing welding with a MIG welding machine, and if wire feeder is used for filler wire, then the end result will be something identical to an alligator clip, and this is to be brought near to the welding zone. For thicker substances which are closer to your plant, you can do a bit of pre heating. Pre heating should be limited to 250 degree F only when you are using the less important plant that is not suitable for business purpose.

If you are going to use the welding equipment in your house hold socket, one important point that you must consider is that modify the rating of your fuse, or else you will be at the risk of blowing your fuse every often. You can also learn that by experience.

If you are trying the MIG welding machine for the first time without refereeing any guide, you are more prone to dig a hole in your sheet/weld job. But have patience, don't give up, with a few more holes, you are likely to turn to be a better welder than when you started off first.

Using welding machines is not a big deal to get panic, and by apply right strategy, advises and referring the manuals and guidelines provided, it is quite easy to perform it on your own.

Analyst suggests reliable Welding Machines with industrial quality Mig Welding Machines, so whether you need Welding Equipment or welding supplies you can find cost-effective and consistent welding services in NSW, Australia. Terry Burch is an industrial Welding Equipment and supplies analyst in Sydney.

Small Welding Machines and Welding Shops

Welding machines are better defined as tools or equipment which use heat and pressure to create a joint between two pieces of metals or materials. Welding equipment find great use in various production units that produce engineering materials and in automobiles and aerospace industries. They are also used widely in manufacturing companies of train carriages and coaches. Welders have a widespread use in most of the industries.

Looking at welders as equipment of the industries is a narrow perspective. They are also successfully used in small shops of repair and small scale manufacturing workshops. Welding machines are of different kinds and depending upon the source of energy used to create welds; these welding machines are classified as Arc Welders; Fusion Welders; Plasma Cutting Machine; Resistance Welders; Solid State Welders and other similar devices.

Out of all these welding equipment, MIG welding machines are most versatile and are available in various sizes and find different uses. They are available in small and light portable sizes. Unmatched MIG welders are most suited for high performance task and unmatched services. Their USP is that they can utilize all cold running temperatures and prevent distortion of metals. MIG welders work very well on thin metals as well. These small welding MIG machines are thus ideally suited for small shops of automotive repair and also small tasks at home.

There are apart from the patent welding machines mentioned above; some new welding machines which have excellent features and unmatched performance capabilities. Portable welders are another class of welding machines, and as the name suggests, these welders can be used most anywhere power is available. Portable welders can be used by drawing power from the engine of cars and trucks and are very easy to operate as well. They find good use for mechanics on the move and can perform welding actions even on roads. Most portable welders have insulated plastic body and use a single phase power supply. The sleek and sturdy designs of these machines make them an all purpose machines.

Another important welding machine that can be put in the class of small scale welding useful for shops and homes is the plasma cutter. It is essentially used to cut steel and other metals that conduct electricity. The plasma cutter however is used in heavy industries, with developed technology plasma cutters have become handy and cheap to be owned by small shops and hobbyists alike. Hand plasma cutter is very useful in such mechanic shops and even homes of would be welders as they are very simple to operate.

Thus it can be said that welding is essentially an industrial process, welding as a process and also as a profession is increasingly being taken up on a smaller scale as well. Most people find a small welding shop a profitable profession and thus invest little money in welding machines of smaller size and stature. These welders however are as competitive as there bigger counterparts, because it is a well accepted fact that technology is shrinking the world and its equipment.

Gary Lewis is an avid welder and follows his passion every day of his life. You can find his website and articles on how to make over $100,000+ a year welding at Jobs For Welding [http://jobsforwelding.net].

Welding Machines For Sale - Where To Find The Best Used And New Welding Machines Available Online

Welding machines for sale can be really difficult to find sometimes, however if you have the right resources you should be able to find one really easily. Whether you want to buy an industrial machine that is used or new, you need to know that what you are buying will be efficient and safe at the same time.

There are a lot of brands of welding machines to choose from. You might be looking for a Hobart welding equipment which will provide great quality. Also other companies make great welding equipment that can do the job that you need to get done. The best way to find the right kind of welding equipment that you're looking for is to compare them on a website like Amazon or eBay.

I don't recommend that you buy your welding equipment from Sears or classified ads because they will charge a way too much money and not give you the kind of price guarantee, and safety guarantee, that you need to ensure that you get.

If you're looking to buy a used welding machine then you can also find one fairly easily on the Internet. If you do price comparison shopping correctly, then you should be able to find exactly what you need from these websites. Just make sure that wherever you buy your welding equipment from, they give you a 100% satisfaction guarantee. You never want to buy something on the Internet and then not have the option to be able to return to the store.

If you're thinking about buying a welding machine. In doing this search you will find a lot of places that sell welding machines that are not reliable. The offer your product and then do not give you the kind of guarantee that you will need to be satisfied, and when you are not satisfied they will not give you a return on your investment. Not having this kind of customer satisfaction can make someone feel very unsatisfied with the transaction, and that is something that you should always try to avoid. That is why you should do a lot of research before handing over your money for welding equipment for sale.

Welding equipment for sale are available all over the Internet. What you need to be thinking about is how much you are willing to pay for your welding machine. If you want to pay the most money than you can get a new welding machine, but you will be paying a lot more than if you get a usable machine. Use welding equipment can be just as good as new ones, but they don't come with a shiny new packaging and sometimes they will carry less of a guarantee than new welding equipment. This is completely up to you.

Whatever decision you make, when you are comparing welding machines for sale just make sure that you don't let yourself get ripped off. Like I said before, make sure that the company offers you 100% guarantee, check the safety specifications on the welding equipment that you are purchasing, and make sure that you are buying from a trusted company. If you do all that you will be very happy with your welding equipment.