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  • MIG welding aluminum troubles

    Hello yall, Im trying to mig weld aluminum with my 211 and Spoolmate 100. Its my first time doing so and I am having issues. Im using .030 aluminum alloy wire and 100% argon. The flow gauge being used is the Smith unit that came with the 211, with a gas CFM rate of approx 25. The wire feed tension is set up properly and correct .030 tips are being used. I was running some test beads on 1/8" flat aluminum plate. The problem I am having, and this has happened 3 times now when Im welding, the .030 wire feed tip is melting. Im wondering if I might not be using the right stick out length. But Im not really sure. If anyone can give my any tips I would appreciate it. Thanks.
    Lone MIG Slinger!

  • #2
    More stick out and push the weld
    Turn it up and get moving
    Ed Conley
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    • #3
      Don't you mean cfh?
      Nick
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      • #4
        You said it, TIPS thats the problem. As always i have a different answer to your tip melting and a way to correct it ...Bob
        Bob Wright

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        • #5
          Boomer that happens to me when my wire speed is too slow. I have mm210 w/ spoolgun and when it starts burning my tip it is usualy my wire feed is too slow. Try bumping it up alittle hope that works for you.

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          • #6
            Try turning the wire speed up past where you think it should be & then back it down as needed. Less burned tips.

            Also Bob's fix works good I've heard.
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            • #7
              Originally posted by MMW View Post

              Also Bob's fix works good I've heard.
              52 conversions so far and got another one yesterday...Bob
              Bob Wright

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              • #8
                OK Bob, if your fix is so good, then why don't you lay it out or post a link to it perhaps. It does me no good to hear talk with out facts, do you get what I'm getting at here?
                Lone MIG Slinger!

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                • #9
                  hmm

                  try 035 tips with 030 wire or bobs thing pm him i think hes trying to avoid spamming

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                  • #10
                    Originally posted by Boomer8404 View Post
                    OK Bob, if your fix is so good, then why don't you lay it out or post a link to it perhaps. It does me no good to hear talk with out facts, do you get what I'm getting at here?
                    Pics here>>> http://www.millerwelds.com/resources...php?albumid=48
                    Do you have a buddy with a metal lathe? Just cut 1/6" off the standard spool gun copper barrel tube and redrill and rethread 1/4-28 for a standard Miller mig gun tip. Been 6 + years and my problems were solved. I can do it for you if you want to send me your barrel...Bob
                    Bob Wright

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                    • #11
                      Originally posted by Boomer8404 View Post
                      OK Bob, if your fix is so good, then why don't you lay it out
                      Its better than good. I just can't figure out why the Chinese didn't copy it since they make the guns oh i forgot they sell the high dollar tips too ...Bob
                      Bob Wright

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                      • #12
                        I believe I am that "...another one yesterday..." that aametalmaster referred to earlier.

                        As I explained to Mr Wright, I am a lurker who appreciates his input on this (and other) boards. I could have used his instructions to have a barrel modified locally, but that really does him no good, does it?

                        A proper thanks is actually returning something in kind, so I decided to send him my barrel and some cash - a small token of appreciation for not only his kindness, but his effort to help those who need it (yes, me too.)

                        I PM'd Mr Wright beforehand, and he was quick to respond and quite personable. I will confidently support any other member who thinks the same way I did.

                        Safe trips,
                        Dave

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                        • #13
                          Thank you all very much for the tips, they are very much appreciated. Ive gotta run by the local welding supply shop to get some more tips.

                          Also, to Bob. I really do appreciate the link and instruction. I do happen to have an old Atlas Craftsman lathe setting out in my garage and might just have to pull the gun apart and trim the barrel. Thank you again.
                          Lone MIG Slinger!

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                          • #14
                            Big tips....

                            Check out the large tips from Pro Fax....Around 5/16 " OD ...They last a long time. I have adapted them to miller and MK spool guns....Keep your speed up.. Good Luck

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                            • #15
                              Originally posted by bayweld View Post
                              Check out the large tips from Pro Fax....Around 5/16 " OD ...They last a long time. I have adapted them to miller and MK spool guns....Keep your speed up.. Good Luck
                              I think those only fit the bigger spool guns. The spool mate 185, 3035, and 100 take the small thread tips and thats the problem. I worked with a tip company in Canada on building some bigger dia tips with the small thread but they were too costly. Well they were what i pay for a normal tip that why i went the route i did and modified the barrel. I didn't need to stock 6 different tips, now i stock 2. .024 and .030...Bob
                              Bob Wright

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