Tig that looks like stick

[BrokenBiker]

Just been having a go at a welding cart and decided to tig it as it would be good practice, which it was, few out of position welds, few fillets, few but welds, standing and sitting etc

Problem i have is, welding 30mm 2.5 wall box section, when at 100 amps on but welds it felt cold, so bumped it to 110, seemed too hot. Could see the weld sinking in just fine but no matter what I try every weld came out looking like a stick weld.

For the inside fillets I had to bump into 130, but again, welds look like stick welds.

Am I too hot for the material? Or travelling too slow for the heat?

Strength wise they are solid, I'm not worried at all about anything coming apart...just want to learn from it really to know what to work on as don't want to move to stainless until I've got the basics figured out.

This was the 110 amp but weld, clearly cooked it but 100 amps gave me a small humped up bead

 

[voipio]

If you're hoping for the "stack of dimes" effect, it's more ornamental, than anything. Those welds don't look too bad at all. A bit of cratering at the end, which could be improved by setting some downslope for the end, or using a pedal.

 

[BrokenBiker]

If you're hoping for the "stack of dimes" effect, it's more ornamental, than anything. Those welds don't look to bad at all. A bit of cratering at the end perhaps, which could be improved by setting some downslope for the end, or using a pedal.

The crater at the end of the fillets weld is unfortunately a bit of tungsten.

I do slowly ramp off with the pedal at the end of the weld and seem to be getting better at using my foot now.

I'm happy with the actual mechanics of the weld, they are full penetration as far as I can tell and could see the puddle really digging down into the root. A few of them have a bit of undercut and a few blew through but I was able to fill them in no problem once they cooled.

 

[Kram]

I'm terrible at tig, particually with tube, however I know what is going wrong.

Problem i have is, welding 30mm 2.5 wall box section, when at 100 amps on but welds it felt cold, so bumped it to 110, seemed too hot.

Moving to slow. Amps up and move faster, it will come with practise. They look very good to me. Use the down slope when you see its getting too hot, if you dont have a pedal.

 

[BrokenBiker]

I'm terrible at tig, particually with tube, however I know what is going wrong.


Moving to slow. Amps up and move faster, it will come with practise. They look very good to me. Use the down slope when you see its getting too hot, if you dont have a pedal.

I assumed it was either too hot or too slow.

Guess it's just practice then