styln said:
Never learnt although my father has an arc welder and mig welder at his business and can use both. I've watched him a few times but never picked either up.
What's the difference betweeb a mig and tig?
MIG = Metal Inert Gas Welding
TIG = Tungsten Inert Gas Welding
MIG you just have a nozzle + wire feeder, the wire is the electrode which feeds through the nozzle with the gas blowing around the wire. Its one handed operation so you can use the other hand to steady yourself and as long as you get the power and wire speed set up ok for the gauge of metal your welding its pretty simple. But can take a lot of practise to get a decent strong finish.
TIG uses a tungsten torch as the electrode, but you need your other hand to feed in the TIG rods (made of whatever metal your welding), theres no wire feeder so its 2 handed operation, you have to control where you feed the rod and how fast and when, difficult to master but TIG welding give a much nicer finish.
Welding is all about practise really, something I need a lot more of.
If you look at most exhaust systems they are MIG welded but if you looked at say a TRUST exhaust its all TIG, looks a lot nicer, far more professional, also Aluminium welding is done on a TIG welder.