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  1. #71
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    Aug 2012
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    Kelly, N.C.
    Tractor
    JD 655

    Default Re: Mig welding aluminium

    Thats some good looking welds on the pipe Sheild, and some good advice on the honing his skills. I wish I knew how many 6G tests I have run in my lifetime, as that was my craft when in the workforce, Pipewelder, then in the late 70's when the "Greeds" came out with "multi-craft" I had to take on the fitting part also. That way they could keep the Pipefitters pay check in their pocket and work the **** out of the welder. And was just that way if you wanted to work. (unless you worked union,which I did at times but with the Boilermakers) After all that rambling, what I wanted to say was that I think over the years, I believe tig welding took the biggest toll on my eyes. I just finished building a pedistool for the fishfinder on my boat and a couple rod holders out of s/s. I noticed how strained my eyes were after trying to keep the "fish-eye" afloat in the puddle. I remember the day when that was all I seen in the puddle. That could be another reason I prefer the mig now.I retired (I thought) a couple yrs ago but kept one of my service trucks and too many of my past costomers know it. LOL Also have a question for you, that SG spool gun you have, could that be run off a 250 Ranger? I can stick weld anything over 3/13 alum. but trying to justify another spool gun only because of so many jobs I turn down on dump trucks,boats and such. Any info would be greatly appreciated. Gotta go tie things down for the blow headed for the N.C. coast, a real pain. Have a great one.

  2. #72
    Super Member Shield Arc's Avatar
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    Figuring the picking points of jelly donuts.
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    John Deere, 4200

    Default Re: Mig welding aluminium

    Fish eye?! WOW! I haven't heard that term in about a hundred years.
    Thanks Rodiron, I do get lucky every once in awhile, of course I don't post pictures of the welds I butcher! I know what you mean about the eyes, not that I welded all that many years, I worked more as a rigger than a weldor. A year ago last summer my eye sight was at 20/ 85 with glasses on, then I had cataract surgery in both eyes, like being born again!
    Far as the spool gun, I couldn't tell ya! I'm a plug & play kind of guy, and when I plug if it don't play I'm mad. This is a question for yomax4, he is the resident equipment expert! If he doesn't see this thread, PM him, he is very helpful!


    Miller Dynasty 300.
    Lincoln V350-Pro w/pulse.
    Lincoln LF-72 wire feeder.
    Lincoln SG Spool gun.

    2 Lincoln LN-25.
    1937 IdealArc-300.
    Everlast PowerArc 200ST.
    3 Lincoln SA-200s.
    Vantage 400
    1800 Ellis saw.
    Hypertherm Powermax 1250, CNC table.
    PROFAX Welding Positioner.
    JD2 model 3.

  3. #73
    Bronze Member woodsmith's Avatar
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    Jun 2010
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    93
    Location
    Manchester UK

    Default Re: Mig welding aluminium

    Back with an update.

    Brazing aluminium with Durafix seems to be working well. I have got the cleaning and preparation sorted and have made things that don't fall apart. Thanks for all the hints and tips.


    However, the downside is that the little experiment with my MIG welder has left my MIG welder not working properly.
    When I switch on the gas tap the gas flows all the time. I can weld steel but when I release the trigger the gas just keeps on flowing. I have to keep my hand on the gas tap to turn it on and off as I weld.

    What might I have done?
    Might it be an easy fix?

    I assume that it is a fault in the solenoid valve, what triggers the valve to open/close as the valve seems to be wired to the rectifier?
    Could it just be dirt in the valve?

    Thank you.

  4. #74
    Elite Member Chilly807's Avatar
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    Sep 2009
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    3,256
    Location
    Nova Scotia
    Tractor
    Kubota L3400DT

    Default Re: Mig welding aluminium

    I find the best thing to do in cases like this is to isolate the components and test each one. If the valve works properly until the gun is connected.. etc. Most likely is the valve is defective, and it just chose this moment to rear it's head. Did you make any changes to the welder to accomodate welding aluminum? Change polarity, etc? As I recall you have a Lincoln.. Miller should be the same though.

    Sean

  5. #75
    Bronze Member woodsmith's Avatar
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    Jun 2010
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    93
    Location
    Manchester UK

    Default Re: Mig welding aluminium

    Cheers, I have a Cebora Boxer 135.

    The fault first occurred when I converted to Ali and Argon gas.
    The only changes I made were to connect the mini Argon bottle and to change the liner to a PTFE one. The gas seal on the new liner didn't fit well so I bodged it with O rings. I figured the worst that could happen would be that it leaked when in use.

    I have refitted the steel liner and the original seal so that part should be ok.

    With Ali and Argon the gas staying on was intermittent.
    Now it is back to steel and Argon/CO2 mix the first time I used it it was fine. After that the gas stayed on and hasn't switched off since.

  6. #76
    Elite Member 4shorts's Avatar
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    Jul 2008
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    Bay Roberts, Newfoundland
    Tractor
    Kubota 5740,BX25D

    Default Re: Mig welding aluminium

    Quote Originally Posted by Shield Arc View Post
    I bought one awhile back. If you're anything like me, best get a notebook and start writing down the speeds for which process you're using. Otherwise I forget!

    WP-250 Light Duty, Standard Speed Welding Positioner [AUT-WP-250] - $1,719.00 : Arc-Zone.com, The Welding Accessory Experts
    Cool. You got one. Man I wouldn't be without mine. If its something round needed welding I use the positioner but I did mount it on a dedicated adjustable table and added a few arm supports. Getting the speeds set up right comes easy with practice.

    I read that someone didn't like using the MM350P with the spool gun. Something's set up wrong if your having trouble. I use mine for thickness' over 1/4" and it welds fantastic.







    ...Excellence is not a skill. It is an attitude...

    Visit us on the web @ www.specialtyrepairs.ca

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    2011 Kubota 5740/854 FEL/L2674 Blower/Artic Angle blade with 3rd function set up,Rain Tracker Wiper system, custom built vertical exhaust,Grammer Air Ride Seat and other custom stuff
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  7. #77
    Super Member Shield Arc's Avatar
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    Figuring the picking points of jelly donuts.
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    John Deere, 4200

    Default Re: Mig welding aluminium

    Quote Originally Posted by 4shorts View Post
    Cool. You got one.
    Yeah, got me another toy! They are fun to play with.


    Miller Dynasty 300.
    Lincoln V350-Pro w/pulse.
    Lincoln LF-72 wire feeder.
    Lincoln SG Spool gun.

    2 Lincoln LN-25.
    1937 IdealArc-300.
    Everlast PowerArc 200ST.
    3 Lincoln SA-200s.
    Vantage 400
    1800 Ellis saw.
    Hypertherm Powermax 1250, CNC table.
    PROFAX Welding Positioner.
    JD2 model 3.

  8. #78
    Platinum Member BIG DOOLEY's Avatar
    Join Date
    Aug 2012
    Posts
    602
    Location
    MICHIGAN
    Tractor
    JOHN DEERE 2320

    Default Re: Mig welding aluminium

    Quote Originally Posted by weldermike View Post
    Heres some tig, and some mig like tig I recently done.

    Attachment 285958


    Attachment 285960
    Is that pulse mig?
    2012 JD 2320, HOMEMADE CANOPY, 54" FRONT BLADE, 54" MID DECK MOWER, HYDRAULIC ANGLE 60" REAR BLADE, QUICK HITCH, STAINLESS FRONT MOUNT SPRAY TANK W/BOOM, 200CX LOADER W/ 61" BUCKET, HOMEMADE BALLAST BOX,HOMEMADE BUCKET GRAPPLE
    1998 "BIG DOOLEY" Chevy K3500 Crew Cab (36.000 miles & counting)

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  9. #79
    Elite Member 4shorts's Avatar
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    Bay Roberts, Newfoundland
    Tractor
    Kubota 5740,BX25D

    Default Re: Mig welding aluminium

    Quote Originally Posted by Shield Arc View Post
    Yeah, got me another toy! They are fun to play with.
    Good for you. It's a great tool. Great to see your still on the go.
    Merry Christmas
    ...Excellence is not a skill. It is an attitude...

    Visit us on the web @ www.specialtyrepairs.ca

    YouTube Video's: http://www.youtube.com/user/7863348?feature=guide

    2011 Kubota 5740/854 FEL/L2674 Blower/Artic Angle blade with 3rd function set up,Rain Tracker Wiper system, custom built vertical exhaust,Grammer Air Ride Seat and other custom stuff
    2013 Kubota BX25D with many mods
    Kubota ZTR ZG 222 Z
    Custom Toyota Fork Lift

  10. #80
    Platinum Member
    Join Date
    Jun 2011
    Posts
    599
    Tractor
    kubota L4400

    Default

    Quote Originally Posted by BIG DOOLEY View Post

    Is that pulse mig?
    No pulse bud, a single fluid pass.

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