hello
i have a doubt can i weld aluminium on a 160 amp aluminium machine? i thought that aluminum was best weld on spray transfer mode that requires a 200 amp plus machine.
1mm Aluminium wire is in spray transfer from around 130 amps upwards, so it is definitely possible... your main problem with a small 160 amp MIG set will be getting enough voltage through to spray transfer. You want around 21 arc volts or more, and most smaller machines will struggle to deliver this under load.
You can also weld aluminium in short-circuit transfer, but the results won't be pretty, and strength will be suspect.
not sure if it helps, but I can't butt weld 1.3mm thick aluminium on a 240 amp machine. Mainly because it keeps disappearing or I weld to one side or the other but very little metal joining goes on
possibly the same machine in someone elses hands might be able to do it