July 29th, 2007 
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There is a long list of benefits that TIG welding has to offer to us. It is also known as GTAW. TIG is expanded as Tungsten Inert Gas and GTAW as Gas Tungsten Arc Welding. There are some cases where you cannot use TIG welder with full efficiency that they are known for. Let us see;
<br /> Work to be done
You have got to decide upon the type of welding that needs to be used upon this basic factor. Depending upon the work that you have at hand, you will have to spot the best way to get it done using a welding techniques that suits the task perfectly. There are several types of welding tasks. Even the material that needs to be welded should be kept in mind while short listing that welding method that will get your job done the way you want it to be.
For instance if you have the task of a small assembly in a car’s engine, where the thickness of aluminum is 1/8” then you definitely cannot go in for stick welding. Stick welding is supposed to give poor welds and huge amounts of fumes while welding aluminum. An MIG or a TIG can get the job done in this instance. But not all welding jobs are easy to be matched with the right machine.
Required Quality
It is renown among professionals for it great quality welds. Decide upon a welder type depending upon the quality required for the welding task. If you need great quality for products that are very visible then TIG is the way to go. Sometimes TIG weld is done after making a pipe joint weld. It is done especially on products to give the highest quality welding. For consumer products, nuclear work etc this method of clean welding is done to establish great bonds.
While having to perform jobs that do not require great quality but quantity within a stipulated time is highly demanded, then MIG welders can do the trick. This should not degrade the value of MIG; it is just that professionals and the like have enhanced the worth of its counterpart.
Metal thickness
Choose a type of equipment keeping in mind the thickness of the material that needs to be welded. MIG or Stick process cannot be used for metals which are thousand of inch in thickness. This is because they heat up the metal way too much than needed. Whereas, they will serve to be the best choice while welding metals that are ½” in thickness. They cut them much faster and efficiently.
Machine efficiency
Decide upon the power of the machine that is required to finish the weld. People who do welding as a hobby would not require the high tech TIG to do trivial welding tasks. This will not be the case with industrial welding where power is the key.
Watch the video related to mig welding
Soudure TIG – TIG Welding … Soudure TIG MIG Welding Weld “video soudure” “weld video”
Help answer the question about mig welding
When MIG welding, what PSI should I set the shielding gas at?About Author
Brayan Peter is an expert author for Welder, Plasma Cutter,Welders,Tig Welding. He written many articles like Plasma Cutters, Plasma Cutting Machine, Welding Equipments, Tig, Arc Welder,MIG Welder, Welding Machines, Diesel Generators, Welding Helmets. For more information visit our site http://www.everlastgenerators.com. Contact him at weldings.info@gmail.com
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you may want to do a search on that (google). That may give u the help u need. Good luck!
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
Mig welding job listings in Dallas TX:
http://electricalengineer.electrical-designer-guide.com/a/jobs/find-jobs/q-mig+welding/l-dallas+TX
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)
Consistency, quality, and operating cost. Remember, you don't need highly trained welders, just machine operators to run them.
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)
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
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!
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.