08-24-2012, 03:53 PM
You can do it with steel as long as you have enough base metal to melt together and no gaps. Same with oxy-acetylene. But if you need to fill a gap between two pieces it isn't going to happen without a filler rod or wire.
For thin metal you can even use regular MIG wire as a filler.
Aluminum isn't so forgiving though because it is "hot short" - meaning that it is almost guaranteed to crack if you don't add any extra filler metal to the weld.
For thin metal you can even use regular MIG wire as a filler.
Aluminum isn't so forgiving though because it is "hot short" - meaning that it is almost guaranteed to crack if you don't add any extra filler metal to the weld.
Willie