Trouble shooting
Burn through- increase travel speed.
- Have shorter welds.
- Keep changing where you weld to distribute the heat.
Dirty welds - Use push angle instead of drag technique.
-Increase voltage to get into spray transfer.
- Use proper base metal cleaning techniques (Stainless Steel Brush).
- Check for proper shielding gas and wire alloy type.
The metal needs to be cleaned before welding.
Push Don't pull
to get the best weld hold the gun almost vertical, and push the gun so that the gas gets pushed to where you are welding not pushed away from whereyou are welding.
Aluminium welding
Another technique is a step pause.
this is when you move about a 1/4 of an inch (about 6mm), and then you pause. the speed that you go is about 1second per stop start. It should look like this.
