Thankyou RS Liberty.com

Thanks Jovan. Did a little search and came up with this.
The MIG weld process, or Metal Inert Gas weld, fuses the metal by heating with an arc. With this type of weld, the arc is placed between the filler metal electrode and the work piece. Shielding is provided by outwardly supplied gas or gas mixtures. A TIG weld or Tungsten Inert Gas, on the other hand, functions by joining metals through the process of heating with tungsten electrodes that do not become part of the completed weld. The process utilizes argon or other inert gas mixtures as shielding and filler metals are rarely used.

Some of the basic differences between the two types of welds are that MIG welding is faster than using TIG welding, as utilizing TIG welding requires more skill that MIG welding. A solid wire is used in the MIG Flux Cored Arc Welding-Gas Shield (FCAW-G) while TIG uses a flux cored electrode.

so is spellcheck.



for future reference...



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haiiiiiiiiiiiii Frank

I just googled it Billsy.
You know that all the info on the internet is 100% true and correct.

billsy wrote:

i dont know where you cut/paste that from but theres some lies in there.
tig uses fusion and solid filler rods/wire
some TIG rods, like brasing and silver soldering are flux covered
an ARC welder also called MMA welding uses a flux covered electrode

Gas less mig is sh!t IMO, it leaves spatter everywere.

Gasless mig wire is good for standard welding jobs that you may normally use a normal arc welder with, I use the gasless wire all the time for welding rhs, pipe, etc, but to weld thin stuff like car panels you need to use argon as you can weld much better and cooler which is very important in car panels and the like to avoid  metal heat fatigue which causes lovely ripples.

TIG does use a rod as the filler, so technically the first comment was right as you don't expend the material producing your heat or arc, but you still need to fill the join. TIG is heaps neater when done right, hard to get a mig weld as good as a decent tig weld.

I think from a strength point of view they are much of a muchness.

Regards
Paul