Ubique
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- 1,880
- Location
- East Midlands
Here's a few of my first TIG filler runs, stainless 1.6mm sheet (probably a bit thin for practice), 1.6mm filler & 1.6mm tungsten at 45A. As you can see -ignoring the craters - the welds are quite black, I was using 7l/min of 100% argon and not really hanging around.
Top
Bottom - penetration seems a bit too deep to me
Secondly, Aluminium - I'm happy-ish with the filler beads, except for the craters, obviously. 1.6mm tungsten, 55A and 100Hz, filler was 2.0mm, material was 2mm - why the big etching mark around the start of the weld? is it something I need to correct or worry about?
The Stainless ones were done after 3 or 4 hours of 'messing around' with mild steel, the Aluminium was after about 8 hours of mild, stainless and aluminium practice (and quite a few contaminated tungstens!)
I'm using a GYS ProTIG 201 with no pedal, all was done with 1s pre-flow, 2s ramp down and 6s post flow.
Any guidance gratefully received!
Top
Bottom - penetration seems a bit too deep to me
Secondly, Aluminium - I'm happy-ish with the filler beads, except for the craters, obviously. 1.6mm tungsten, 55A and 100Hz, filler was 2.0mm, material was 2mm - why the big etching mark around the start of the weld? is it something I need to correct or worry about?
The Stainless ones were done after 3 or 4 hours of 'messing around' with mild steel, the Aluminium was after about 8 hours of mild, stainless and aluminium practice (and quite a few contaminated tungstens!)
I'm using a GYS ProTIG 201 with no pedal, all was done with 1s pre-flow, 2s ramp down and 6s post flow.
Any guidance gratefully received!