May 1st, 2009 
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There are many types of welding that are available to learn today and MIG is one of those types. This type of welding dates back to 1940s when it was discovered to weld aluminum and other types of non-ferrous metals.
Many people refer to MIG welding as GMAW or gas metal arc welding. Often these two terms are used interchangeably. This type of welding is considered to be automatic or semi-automatic because it happens quickly. The process works to join two pieces of metal by continuously passing a wire through a welding gun. The wire is connected to a direct current and then passed through the gun with an inert gas like Argon.
The wire acts as an electrode and the inert gas acts as a shield as the welding is performed. This means that contaminates are air borne instead of being put into the weld zone.
An MIG welder will use this method to meld metal quicker than regular stick welding especially when they want to weld soft metals like aluminum. When this method was first started the inert gas was too expensive to do the process all the time. Today, carbon dioxide can be used instead of the more expensive gases and makes this method more cost effective.
Advantages of MIG Welding
There are several advantages of MIG welders:
* It is faster than traditional methods of welding and it produces longer, continuous welds.
* It produces a cleaner weld with less splatter.
* It can be used with a wide variety of alloys and metals which makes it a versatile elder process.
Disadvantages of MIG Welding:
Although this is a very specialized process that works efficiently for many projects there are a few disadvantages that include:
* The welding equipment is complex and bulky to use.
* The equipment needs a source of continuous current and a constant feeding of the wire through the gun.
* It is a very different process than traditional welding so there is a learning curve for all welders who use this technique.
* Because of the inert gas, MIG welding cannot be used an open area because the wind would cause the gas to cause more problems for the MIG welder.
MIG welding has become very important in many industries because of its ability to weld metals quickly. You will see this type of welding done in many industries that include automobile industry and nuclear industries.
Watch the video related to mig welding
This Mig Welding Video Demo shows how simple and easy it is to use a MIG welding machine www.learn-how-to-weld.com/mig-welding.html Mig Welding Machines are use throughout the world. They are the suited for many welding applications.
Help answer the question about mig welding
If you can do mig welding can you more the likely do tig welding?My fiance has been doing "mig" welding for about 3 years now. He just got laid off and someone called him about a new position BUT they do "tig" welding, he isn't too sure what the difference is or if he is going to fail the test they give him for tig welding. Is there a big difference?
About Author
Brayan Peter is an expert author for Welding Equipments, Welding Machines, Gas Welding. He written many articles like Welders, Diesel Generators, TIG Welder, MIG Welder, Plasma Cutters, Welding Helmets, Diesel Generators. For more information visit our site http://www.everlastgenerators.com. Contact him at weldings.info@gmail.com
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Ha Ha very funny willystylee.
Have you guys seen “You Can’t Weld This!”? It’s pretty funny… The guys over at WeldingMart com had it made! Do a youtube search for it
mig welders need a shield gas unless u use flux core wire.
the best way to get a nice bead id to set your heat, and turn up the wire feed speed,…..strike an arc and turn down the wire feed till you get a nice bead with little splatter
Possum
you may want to do a search on that (google). That may give u the help u need. Good luck!
If the nozzle is arcing it means the insulator between the nozzle and gas diffuser is probably shot. You will have to either replace the insulator or make sure you don't touch the work piece.
Arcing outside the weld zone is not good, can lead to inbrittlement and cracking.
Oh, and good job on buying a miller…i hate it when people buy crap gear and expect miracles(or ask me to perform them with their junk welder)
There is a big difference between MIG and TIG welding, in both the process, and the skill level required of the weldor. They really are two different processes altogether, and the MIG is the much easier of the two.
There is much to read on the web, including some great information at the Miller and Lincoln websites. They can give you a pretty great overview of TIG welding. But, as with many skills, it takes hands-on practice as well as study, to be successful.
If your fiance has ever welded with a gas torch, he might already have the skills he needs. Unlike a MIG welder, a TIG does not feed an electrified filler wire for you. You are in control of a separate heat source (the torch) that you must manipulate in order to melt the base metal together, while adding the filler by hand to the molten puddle you're creating. It's the same way a gas torch works, just with electricity, rather than gas, as the heat source.
The tricky part comes in learning how hot to make the puddle, how much heat to apply (with a foot or hand controller), and how to coordinate the filler at the same time. Quite often, TIG welding involves metals like aluminum or stainless, which have their own quirks that need to be considered. It's by no means impossible to learn all of this…and it can be a very valuable skill to have, often paying higher than MIG welding jobs.
If your fiance shows this prospective employer that he is a professional who takes pride in his work, has studied the subject, and is willing to learn, he may get his foot in the door and start down a new path on his welding career. I wish him the best. Study all you can, and if you know a buddy who is good with the Oxy-Acetylene torch, go visit him right away for some practice!
Best of Luck!
JEG SER DENNE I KLASSA NÅ!!!!!!!!
rofl makes me feel so dumb
First off, are you a good welder? If you have limited experience, you will not get good weld penetration with a MiG welder. Also if you use one of the cheap welders that you can buy at Lowe's or auto parts stores, they don't produce enough power to get a deep penetrating weld.
MIG means machine inert gas. Those cheap welders are called MiG but are just wire feed welders and not MiG. You must use gas to get a good weld. A cheap gas to use if you are a good welder is carbon dioxide. The weld is good only if you are very experienced. Next you can use 75/25 gas mix which is 75 % argon and 25 % carbon dioxide. Doesn't take as much skill and produces a reasonable weld. For a top job, use 100% argon. It costs a little more but does so much more.
If you buy a MiG, get a good one in the $2000 dollar range, such as a commercial Lincoln, Miller or Hobart. Go to welding school at your local Vo-tech and practice, practice, practice. Once you learn, you can weld car doors, bodies, exhaust, frame or anything else you so desire. As a good MiG welder, you can get a top paying job and be set for life. I prefer a auto darkening helmet when I weld. It makes learning so much easier.
very nice video
Consistency, quality, and operating cost. Remember, you don't need highly trained welders, just machine operators to run them.
glad you asked, Mig welding is really a simple task if you can already stick weld. what you see is what you get with a mig. follow the following process and you'll do great.
if right handed hold the handle slightly to the left just enough to see the wire sticking out of the nozzle, weld to the left in an overlapping circular pattern usually between 1/4 and 7/16 wide the lens should be sufficient if for arc welding. a quick practice on scrap metal should ease your concerns quickly. you will see the deposited weld in the lens and no chipping needed
must i use welding gogles when seeing the video !!!! thxs???
Hope you are not using pure argon (just a wast of money for pure). You should be using a 75/25 mix of argon/co2. The shielding gas shields the molten metal from the atmosphere, more so oxygen and nitrogen to prevent porosity, and reduce the chance of cracks. To rent a tank you should call a local welding supply for the prices as the price varies quit a bit by location. I am in Ohio so a price I would give you would not be true for your location.
Here is a good site to look at, http://www.weldingtipsandtricks.com/index.html
http://www.weldingtipsandtricks.com/Mig-welding-tips.html
(32 years welding)
pull … deeper penetration …. push … less penetration.
pull … puts more heat into the weld puddle.
push … puts less heat into the weld puddle.
This isn’t always the case though … uphill & downhill are the exactly opposite. Uphill digs deeper where as downhill doesn’t.
When your practicing … don’t fill in you weld at the end … you can easily tell which methods penetrate deeper into the base metal.
yeah u need to, the even looking at an arc on a computer screen will burn your eyes. Better hurry and go get one from the idiot store
Mig welding job listings in Dallas TX:
http://electricalengineer.electrical-designer-guide.com/a/jobs/find-jobs/q-mig+welding/l-dallas+TX
Im beginer.When Im welding Icant see difference between push and pull, In structure of weld.But I have only cupple hours of welding on my account:) Thank you