Cheers all, I do find that sometimes the puddle is flowing well at the edges and looks like needs to keep moving for risk of melting a hole in the .035 tube but the section of puddle at the root is slightly curved in and that’s where I think I get the voids. What’s the solution more amps and heat bu...

Thanks Josh, yes I think there is penetration, I’m not sure about the little voids on some of the cuts, is it normal to have that, there seems to be good fusion above and beside a d the weld material is thicker than the original tube so I imagine strength is not an issue ? But I wonder if cracking w...

Good point, thanks for that. Tungsten is 1/16 2% thoriated My set up is in Ltrs but I have about 12-14 chf .5 sec pre flow and 7 sec post flow 45-49 Amps set for tubes / Flat .090 tear drop washers,I think I set 85 Amps... Foot pedal .030 rod on .035 tube ( did try 1/16 on a couple of places but thi...

Hi all, I posted these pics in my introduction post, but thought I would repeat it here under this topic heading. Hi from NZ. I’ve been dabbling in Tig welding for a bit, I borrowed a lift tig machine and did some tack welding on my project (little bi plane rebuild ) I recently bought an AC DC 200E ...

I’ve cut the tubes and cleaned them up a bit, seems some cross sections are quite good (to me) and others have some areas that contain small voids at the root of the joint. Section DD is one where I did one pass on one side and then 3 passes on the other side, just to try it out a bit.

Hi from NZ. I’ve been dabbling in Tig welding for a bit, I borrowed a lift tig machine and did some tack welding on my project (little bi plane rebuild ) I recently bought an AC DC 200E machine from Weldpro same as a Bossweld it’s a relatively cheap Chinese machine but seems to do the job and I’m on...