No announcement yet.

Aluminum welding

  • Filter
  • Time
  • Show
Clear All
new posts

  • Aluminum welding

    I have just bought a 252 millermatic welding machine and a used 30a spoolgun is there anything that i need to watch for while using this setup on aluminum

  • #2
    I have a millermatic 200. I only use my spoolgun for tacking anymore. Just too finicky for continuous welding. What I found was that I needed to clip the ball off the wire every time I started to weld or it would not start worth a darn. I clip the wire at a diagonal so the sharp end lit up faster.

    I know that most people like 4043 better, but I have better luck with 5356, as it drives better and seems to arc up more consistantly.

    Good Luck and have fun.
    Nothing welded, Nothing gained

    Miller Dynasty700DX
    3 ea. Miller Dynasty350DX
    Miller Dynasty200DX
    ThermalArc 400 GTSW
    MillerMatic200 with spoolgun
    Lincoln SP-170T
    Linde UCC305 (sold 2011)
    Hypertherm 1250
    Hypertherm 800
    PlasmaCam CNC cutter
    Fadal Toolroom CNC Mill
    SiberHegner CNC Mill
    2 ea. Bridgeport
    LeBlond 15" Lathe
    Haberle 18" Cold Saw
    Doringer 14" Cold Saw
    6 foot x 12 foot Mojave granite


    • #3
      I have a MM185 and spoolgun and like 3035 wire. I use it for new production parts as well as repair of broken junk. Yes junk by the time it gets to me its really broke or 3 others have tried to fix it. Here is a chainsaw cover i made today from 1/8" alum. All the corners are welded and ground...BobClick image for larger version

Name:	315 cover2.jpg
Views:	1
Size:	40.3 KB
ID:	510920Click image for larger version

Name:	315 cover.jpg
Views:	1
Size:	29.2 KB
ID:	510921
      Bob Wright


      • #4
        I've got a millermatic 250 and I want to buy a 30a spoolgun and I'm wondering what gas should I use when I can afford to get this gun?

        I've used helium in the past with a TIG on aluminium, but my experience with anything but mild steel is limited.


        • #5
          truckman for alum you need pure Argon...Bob
          Bob Wright


          • #6