T.I.G welding

Things to remember:

The Tungsten 'electrode' in TIG welding is used to generate and hold the arc but doesn't melt like the other methods.

The operator creates a pool of molten metal at the weld site and feeds filler wire to create the weld, this creates the distinctive overlapping circles.

This method requires great skill to get an attractive weld but can be automated if you are doing the same weld thousands of times.

Mostly used for stainless steels and sluminium but can weld nearly any metal

Good for thin metal and hollow tubes (like bike frames)