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Thoughts on fixing busted tang on cintered metal receiver

Discussion in 'Gunsmithing and Repairs' started by Rex in OTZ, Feb 6, 2020.

  1. Rex in OTZ

    Rex in OTZ Member

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    I just aquired a parts gun and am thinking of resurrecting it.
    Thought about getting it welded.
    Till I learnt model 94 Winchester has a cintered metal receiever.
    Post 64 Winchester model 94 with a busted/patched upper tang.
    This very rough bush rifle looks like I have base to work off.


    The 1964-82 sintered receivers were iron-plated so they would accept the various finishes Winchester was offering during those years - "Bluing" (it isn't), Pewter, Gold, Silver, Brass (all commemoratives), Case Colors (M94 Antique), and Black Chrome (NRA Rifle/Musket, M94 Classic & some commemoratives).

    The changes to the model 94 included:
    The receivers were no longer made from forged steel, they changed to a sintered metal casting process using an alloy that included graphite, nickel or chromium (actual recipes are not known, nor available from any source that I could find).
    Some of the screws were replaced with pins
    Many of the solid steel internal pins were replaced with hollow roll pins
    The final machining was changed, perhaps this was because the sintering molds produced a part that was "close enough"Some of the internal forged steel parts were replaced with stamped steel ones, of particular concern was the cartridge lifter/elevator
    While most of the changes did not in any way affect the performance of the gun, or the strength of the receiver.
    The testimony of its strength can be found with a lack of stories of post '64 Winchesters blowing apart.

    1972 the sintering alloy was changed once more, this time the amount of steel was low enough that the receivers needed to be iron plated in order to accept bluing, the DuLite formula used was the original WinBlue/Oxiblack.
     

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    Last edited: Feb 8, 2020
  2. edwardware

    edwardware Member

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    I think you should find an experienced welder with a penchant for experimentation; it's not like you have much to lose here. I bet it can be TIG welded.
     
  3. BigBore45

    BigBore45 Member

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    Tig. Or possibly drill and thread for screws? Maybe braze with a brass rod as it seems it was ment to take to brass.
     
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  4. WestKentucky

    WestKentucky Member

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    Save a whole bunch of hassle and wait out either a parts gun or a bare reciever. Sintered metal doesn’t typically find its way back together once it separates.
     
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  5. <*(((><
    • Contributing Member

    <*(((>< Contributing Member

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    A second parts gun is your solution in my opinion.
     
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  6. Rex in OTZ

    Rex in OTZ Member

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    It was a bummer when I found out why that patch was on the tang.

    Thanks for the replies so far.
     
  7. Kp321

    Kp321 Member

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    Jig it good, heat sink the receiver, and silver braze (high temp silver solder) the tang. It won’t be as strong as the original but there are too many issues trying to weld the mystery metal receiver. Give it a paint job with Duracoat, Ceracoat, or similar.
     
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  8. Rex in OTZ

    Rex in OTZ Member

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    Thanks for the dope on getting that tang back on.

    Pick up some heat control paste.
    Also need to at very least a butt stoco to get the holes to line up.
     

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