hi guys,
was going to weld a part which broke the other day (cast aluminium) but when I began to weld no pool formed and the metal just kind of bubbled up and melted away a bit so I stopped,
just to check my welder was working okay I kept the same settings and tried on a piece of brand new ally sheet and it welded perfectly,
could this be due to unclean parent metal?
many thanks
Jonny
was going to weld a part which broke the other day (cast aluminium) but when I began to weld no pool formed and the metal just kind of bubbled up and melted away a bit so I stopped,
just to check my welder was working okay I kept the same settings and tried on a piece of brand new ally sheet and it welded perfectly,
could this be due to unclean parent metal?
many thanks
Jonny