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  1. #1
    Join Date
    Feb 2013
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    1

    Default aluminum & bronze

    any tips on welding bronze weldable hinges to aluminum post

  2. #2
    Join Date
    Aug 2010
    Location
    Los Angeles
    Posts
    1,168

    Default

    Quote Originally Posted by weldumup View Post
    any tips on welding bronze weldable hinges to aluminum post
    Pray.
    Nothing welded, Nothing gained

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  3. #3
    Join Date
    Aug 2004
    Location
    Milan Michigan
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    1,721

    Default

    Epoxy and then pray some more.

  4. #4
    Join Date
    Oct 2009
    Posts
    306

    Default

    Lol bolt them on
    Miller syncrowave 200 runner with coolmate 4
    and wp2025 weldcraft torch
    Miller 125c plasma cutter

  5. #5
    Join Date
    Sep 2012
    Location
    seaford de
    Posts
    406

    Default

    You got me very curious how this would work... I just welded a piece of BRASS to aluminum with bronze silicate filler. AC hf straight argon. I assume if the bronze in the filler with work then your bronze hinges will work as well

  6. #6
    Join Date
    Sep 2012
    Location
    seaford de
    Posts
    406

    Default

    Low fuming bronze does not work at all. Blew my cup into pieces soon as it touched

  7. #7
    Join Date
    Sep 2009
    Location
    Colorado
    Posts
    211

    Default Video on brazing aluminum

    Kent white is a huge promoter of oxy-acetylene use, including welding aluminum. He comes out of the restoration world. This video shows brazing aluminum.

    http://www.youtube.com/watch?v=RRWmpSE-hXk

    The video does not say exactly what brazing rod he uses, but if you go to the tinman web site you should find it.

    https://www.tinmantech.com/html/brazing.php

    Richard

  8. #8
    Join Date
    Oct 2009
    Posts
    306

    Default

    Aluminum's melting point is 650 celcius while bronze is around 950 celcius depending on alloy makeup.

    This doesn't help the situation. The only way I see you getting the two stuck together is using silfos but your still likely to end up with a mess rather than a brazed joint.
    Miller syncrowave 200 runner with coolmate 4
    and wp2025 weldcraft torch
    Miller 125c plasma cutter

  9. #9

    Lightbulb aluminum and bronze welding

    you got advice to bolt them and that is correct.
    the reason is your trying to weld ferious metal to non ferious metal. that means carbon and non-carbon. . the key is they are not only different in structure but have different melting points. aluminun is strong yet it will, melt before the bronze.
    so anyway thats that.

  10. #10
    Join Date
    Sep 2012
    Location
    seaford de
    Posts
    406

    Default

    Quote Originally Posted by welding insp.48:301706
    you got advice to bolt them and that is correct.
    the reason is your trying to weld ferious metal to non ferious metal. that means carbon and non-carbon. . the key is they are not only different in structure but have different melting points. aluminun is strong yet it will, melt before the bronze.
    so anyway thats that.
    Bronze is NON FERROUS. MADE PRIMARILY FROM COPPER ALLOY. THE DIFFERENT MELTING POINTS CAN BE HELPFUL SINCE HE WILL BE PERFORMING A LAP WELD.... THE TOP PIECE "bronze hinges" ON A LAP WELD WILL TYPICALLY BURN BACK FASTER SO AS I SAID.... THAT MAY HELP THE WELDING PROCESS.

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