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  1. #1
    Join Date
    Dec 2007
    Posts
    4

    Default welding Anodized alum pipe

    Welding anodized aluminum
    I have welded alum anodized and never cleaned
    the process is simply a button on my tig torch
    Full amps a puddle rod stop then next puddle rod and so on
    This is the pipe welding process for anodized pipe

    I use a sink wave 250 ac
    All boat tops and towers are anodized either black silver or gold

    The process works on all aluminum you will have to clean dirt and grease
    Hope this helps

  2. #2
    Join Date
    Dec 2007
    Location
    southern B.C
    Posts
    51

    Default welding anodized alum

    just wondering how jcoldon accomplishes welding on anodized alum without removing anodized coating. In my experiences with anodized alum I've always seen higher quality finished product when removing anodizing. Doing something different?

  3. #3
    Join Date
    Aug 2006
    Location
    near rochester NY
    Posts
    9,881

    Default

    the anodizing is just like any other oxidation, if you have the power to blast threw it and float it out of the way you get a good weld. i have heard pulse can be used to help break up the anodizing but never tried it. just read about it on here.
    thanks for the help
    ......or..........
    hope i helped

    feel free to shoot me an e-mail direct i have time to chat. james@newyorkmetalart.com
    summer is here, plant a tree. if you don't have space or time to plant one sponsor some one else to plant one for you. a tree is an investment in our planet, help it out.
    JAMES

  4. #4
    Join Date
    Aug 2007
    Location
    Vancouver BC Canada
    Posts
    605

    Default

    I recall way back when in the days of BMX riding, we would remove the anodizing from our bike parts with easy off oven cleaner. Spray it on, let it stand , wipe it off. the AL came out sorta luster and a buffing wheel made it quite glossy.

    the active ingredient that made this all possible is sodium hydroxide ( NaOH ). its found in Drano, lye, oven cleaner, some outdoor cleaners and laundry additives...
    Will it weld? I loooove electricity!

    Miller 251/30A spool
    Syncro200
    Spectrum 625
    O/A
    Precix 5x10 CNC Router12"Z
    Standard modern lathe
    Cheap Chinese mill that does the trick... sort of...
    horizontal 7x12 bandsaw
    Roland XC540 PRO III
    54" laminator
    hammer and screwdriver (most used)
    little dog
    pooper scooper (2nd most used...)

  5. #5
    Join Date
    Mar 2006
    Location
    Ocean City, Maryland
    Posts
    951

    Default

    Like fun4now, I think most tuna tower buiders do not remove it first. I read an article, I believe in Miller magazine, The guys there did not clean it off. I have done only 2 piece's and I removed it. It was for seats in a boat, so didnt take long. But it would take for ever on a whole tuna tower to remove all the anodize on each place it needed welding. If I find some more I'm going to try it.
    Scott
    HMW [Heavy Metal welding]

  6. #6
    Join Date
    Aug 2006
    Location
    near rochester NY
    Posts
    9,881

    Default

    hey... are you calling me a tuna tower

    LOL i just had to do it.
    thanks for the help
    ......or..........
    hope i helped

    feel free to shoot me an e-mail direct i have time to chat. james@newyorkmetalart.com
    summer is here, plant a tree. if you don't have space or time to plant one sponsor some one else to plant one for you. a tree is an investment in our planet, help it out.
    JAMES

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