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 aluminum welding

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winchworm

winchworm

Number of posts : 15
Registration date : 2008-12-10
Age : 51
Location : Oliver Springs, TN

aluminum welding Empty
PostSubject: aluminum welding   aluminum welding EmptySat Dec 20, 2008 8:50 pm

Does anyone have any useful info in welding aluminum with a gas-less wire feed mig welder? I have a small 120v mig, added the aluminum welding kit, reversed polarity on the wire and preheated the aluminum. Nothing seems to be working very well. Any suggestions would be helpful!!!!!!!!!!! Help
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Foxfire
SSXSRider Member
Foxfire

Number of posts : 6060
Registration date : 2008-04-01
Age : 68
Location : Bristol, Wisconsin

aluminum welding Empty
PostSubject: Re: aluminum welding   aluminum welding EmptySat Dec 20, 2008 8:57 pm

scratch What seems to be happening Winchworm Question
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ChrisC
SSXSRider Member
ChrisC

Number of posts : 5483
Registration date : 2008-06-30
Age : 53
Location : Marietta GA

aluminum welding Empty
PostSubject: Re: aluminum welding   aluminum welding EmptySat Dec 20, 2008 9:17 pm

Never tried it with a gas less .

with a gas welder , it works pretty good..... Wink
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winchworm

winchworm

Number of posts : 15
Registration date : 2008-12-10
Age : 51
Location : Oliver Springs, TN

aluminum welding Empty
PostSubject: Re: aluminum welding   aluminum welding EmptySat Dec 20, 2008 9:22 pm

With a pre-heated, cleaned butt joint, the aluminum wire tends to just ball up with little or no penetration. I'm holding roughly perpindicular to the seam and using a gun push method. wire speed seems to be fast enough and movement as well. Any help?
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PostSubject: Re: aluminum welding   aluminum welding EmptySat Dec 20, 2008 9:25 pm

Winch, 120v just aint enough for good penetration. Maybe for some thin .020 or less sheet, but thats about it.
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winchworm

winchworm

Number of posts : 15
Registration date : 2008-12-10
Age : 51
Location : Oliver Springs, TN

aluminum welding Empty
PostSubject: Re: aluminum welding   aluminum welding EmptySat Dec 20, 2008 9:33 pm

That's what I was afraid of. I taught myself to weld mild steel and thought I would give this a try. I always enjoy playing with new concepts. Will have to get a 220v set-up and try again. Thanks for the info and if anymore ideas come your way, I would appreciate if you would pass them my way. Thanks
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RickV

RickV

Number of posts : 103
Registration date : 2008-09-01
Age : 64
Location : Clarksburg, WV

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PostSubject: Re: aluminum welding   aluminum welding EmptySun Dec 21, 2008 12:30 am

Winch, here is a short video from Miller that may help. Set the argon to about 20cfh. Watch how fast the guy moves the torch.

https://www.youtube.com/watch?v=V_MiGrL9350
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firejunky

firejunky

Number of posts : 6
Registration date : 2008-11-04
Age : 46
Location : Millington Tn.

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PostSubject: Re: aluminum welding   aluminum welding EmptyTue Dec 30, 2008 1:05 pm

I have one of those welders. I am ready to throw it in the trash. It is not good for anything but small stuff. I broke the rear diff. support on my rhino. I replaced it with a peice of 1" solid stock and I couldn't get the 120v mig to penetrate at all. I could lay a bead down and turn right around and knock it off right after I get done. I woulod not try to do the aluminum with that type welder. Just my 2 cents worth.
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RickV

RickV

Number of posts : 103
Registration date : 2008-09-01
Age : 64
Location : Clarksburg, WV

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PostSubject: Re: aluminum welding   aluminum welding EmptyTue Dec 30, 2008 7:07 pm

Winch, I don't know what happened to one of my threads it disappeared. However it was basically what the video above says. Remember clean, clean, clean is your friend.
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tommy20/69

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Number of posts : 49
Registration date : 2008-06-30

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PostSubject: Re: aluminum welding   aluminum welding EmptySat Jan 03, 2009 10:40 pm

i have a linchon mig 140 with the spool mate 100 gun set up with aluminum welding and it does pretty good on 5/16 on down thickness.and i use my mig 100 for my metal jobs like bumpers and stuff.
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