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What are 4 common welding processes?

There are four common welding processes utilized through out the work industry today. They are :
(Stick Welding or SMAW) Shield Metal Arc Welding
(Mig Welding or GMAW) Gas Metal Arc Welding
(Tig Welding or TMAW) Tungsten Metal Arc Welding
(FCAW) Flux Cored Arc Welding

There are many many welding processes, however these are the most common. The type I am going to discuss briefly today is SMAW. The most economical and cheapest way to learn if welding is for you or not is to start with stick welding. It has the least amount of variables that can go wrong for a beginner. It is not fast paced like mig or flux core, so you have time to watch the molten puddle to see what it is doing and make necessary adjustments to correct the size, shape, and contour of your weld bead. The hardest part for a beginner is to keep the electrode from sticking to the work piece. Thus is the reason it got the name of "stick welding". There are three common ways to strike an arc in SMAW. Tap Start, Scratch Start, and the last is to place the electrode upon your fingers like a pool cue, and shoot the rod like your playing pool.

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What mig gun is on a Nevada 220BZ Mig Welder


Nevada MIG-220BZ MIG TIG MMA ARC DC Inverter Welder ...

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eBayNevada MIG-220BZ MIG TIG MMA ARC DC Inverter Welder Welding ... Nevada Welding machine; MIG Torch; Earth Clamp; Electrode Holder; Safety Mask ..

Dec 20, 2015 | Welding Tools

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I have a mishto 220 mig tig mma I can get the arc to work fine but the mig there's no arc at all the machine sounds like its welding but no arc at the gun I'm using gassless wire I thought it may be an earth problem but mma works fine any suggestions


They told me at welding school the mig transformer has a different slope (whatever that means?) to the tig and mma transformer so I am a little surprised at your question. The implication is two transformer are needed for the three types of welding and for tig and mig a dc converter and also for dc mma welding.

From your description it seems as though welding current is not arriving at the tip of the mig torch or the current is arriving in the wrong form.
You say the mma is fine but you didn't say whether it is fine on ac welding, dc welding or both. I have not tried mig welding with ac and have no idea whether it would be successful but I imagine a lot of sparks and not much welding. The problem could be the rectifier unit is either not working or is switched out of the circuit.

Polarity is important too with dc tig and mig welding.

I hope this provides food for thought.

Feb 04, 2015 | Welding Tools

1 Answer

how would i sub-arc welding machine to weld structural iron


sub arc welding is a diffrent process than sheilded metal arc welding
sub arc takes alot of amps and is made for alot of weld in long runs usually set up on a track and is automated

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2 Answers

Mig Question


MIG stands for Metal Inert Gas welding, many times called Wire-feed.. Also referred as GMAW (Gas Metal Arc Welding). The "Metal" refers to the wire which is what is used to start the arc. It is shielded by inert gas and the feeding wire also acts as the filler rod. A semi-automatic process, it is fairly easy to learn and use.

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How to TIG Weld


TIG stands for Tungsten Inert Gas welding. Also called GTAW (Gas Tungsten Arc Welding) and HeliarcĀ® which was Linde's trade name for the TIG process when it was introduced many years ago. The arc is started with a tungsten electrode shielded by inert gas and filler rod is fed into the weld puddle separately. A slower process than MIG, it produces a more precise weld and can be used at lower amperages for thinner metal and can be used on exotic metals. TIG does require quite a bit more time than MIG to learn. It is similar in technique to gas welding.

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