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  1. #1
    Join Date
    Jul 2010
    Location
    Brisbane
    Posts
    143

    Default Repairing malleable iron

    Hi all ...I have these brace jaws that I want to repair.. I assume they are malleable iron.. easily bent and straightened.
    What would be the best plan of attack.. make a new part and braze it on.. or build up with either nickel rod or brass ?
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  2. #2
    Join Date
    Dec 2011
    Location
    Sydney
    Posts
    505

    Default

    If it's brace chuck jaws you have there, steel is more likely than cast iron, in which case some sort of welding would be in order.
    A traditional approach may be forge welding (think blacksmithing), though I wonder if those jaws would be too small for that.
    I have not seen brace chuck jaws with holes in them - were they modified for special work?
    Bill

  3. #3
    Join Date
    Jul 2010
    Location
    Brisbane
    Posts
    143

    Default

    The small hole is for the spring to pass thru.. the larger had a stepped pin ...presumably for alignment.

  4. #4
    Join Date
    Oct 2015
    Location
    melbourne
    Posts
    473

    Default

    If it was me, I'd just build up with braze, then shape.
    Maybe a Nickel bronze rod.


    Too small for me to even think about forge welding, that needs a good overlap not a but weld.
    Tig with the right filler maybe?

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