Hi,
I was going to show some Alu welding to my friend yesterday and I just couldn't get it right. The material was a piece of cheap chequerplate Alu that I have been practising on before. I.e I was trying to put a bead down next to a spot where I had put a bead down a few months back. I kept cleaning and twiddling the knobs back and forth, even went back to my notes etc to check that I wasn't doing something stupid. I changed tungsten, ceramic... Nothing seemed to get the dirt out of the pool. There was black specs in the bead all the time. I needed more cleaning action, but no adjustmet seemed to help.
The only real change is I now have a different bottle of argon.
Anyone got a firm theory on why I just couldn't make a nice bead..?!
I was going to show some Alu welding to my friend yesterday and I just couldn't get it right. The material was a piece of cheap chequerplate Alu that I have been practising on before. I.e I was trying to put a bead down next to a spot where I had put a bead down a few months back. I kept cleaning and twiddling the knobs back and forth, even went back to my notes etc to check that I wasn't doing something stupid. I changed tungsten, ceramic... Nothing seemed to get the dirt out of the pool. There was black specs in the bead all the time. I needed more cleaning action, but no adjustmet seemed to help.
The only real change is I now have a different bottle of argon.
Anyone got a firm theory on why I just couldn't make a nice bead..?!
