Guys Mr. TIG has shown a nice micro torch in the following video. welding is not anything close to welding 0.2 mm tickness steel sheets but it looks with such a tiny micro torch one can do a lot.

www.youtube.com/watch?v=q0pCir2hmhk

I am also waiting for your results.

Another thing is that the machine welding shown in your video is actually plasma welding and I suspect the hand held welding is plasma welding as well. I just couldn't get a close enough look at the head of the hand held torch. Regards Andrew from Oz. Which machine do you mean? The one welds the in...

From the original pictures and the video that was posted, I have a question. Are you only having to weld the .2mm material to the thicker material or do you also have to make .2mm to .2mm welds? Yes as you can see from the pictures I posted 0.2mm sheets should be edge welded together both from insi...

MEWASA is one of the company makes these kind of bellows. Here (http://www.youtube.com/watch?v=ArTXGU-oED4) shows a video of a TIG automatic machine welds this kind of bellows nicely but I think it could be done by hand too. It might not come up as nice but as long as it is vacuum tight I wouldn't m...

I understand. Sure I will need a lot of practicing before I can get any reasonable welding. In the future I will need this sort of welding a lot so I thought probably that is a good idea to learn and practice this myself. Plate I intend to solder the 0.2 mm sheet is about 1 cm thick. I have two meth...

This is how it is in the original welding. I meant torch should not aim at the 0.2 mm sheet otherwise it may melt. Right? I haven't done even a single weld yet but this much I understand from what I have learned so far from close inspection of the original part. Most people I talked to they said thi...

Close inspection indicates welder used the attached trick not to let 0.2 mm sheet to melt. Actually torch aims at the steel plate and the melt flow towards 0.2 mm sheet and welding take place. This way I think I need a much higher amperage to melt the steel plate. right?

I am a new bee in welding and trying to learn and make a stainless steel bellows. It contains 4 circular 0.2 mm thick and 15 cm diameter with a circular 5 cm diameter cut (hole) at the centre. These sheet have to be edge welded from outside and inside to make a circular bellows and has to be 10^-8 m...