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Making Flat Springs

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  • V-Tach

    Watching While the Sheep Graze
    Lifetime Member
    Rating - 100%
    7   0   0
    Sep 30, 2012
    8,895
    96
    Texas
    I posted the Pinfire revolver I bought a few weeks ago in NH. I got rather cheap because the hammer spring was broken and the trigger return spring was missing.

    So I made new springs for the revolver and it is now in perfect working order....

    I hardened the springs by heating them and quenching them in oil....after final polish and fitting, I tempered them in the Nitre bluing tank at 600 degrees.

    The original broken hammer spring.......

    20210922_230427_e72b69750f11d00b98589ad51c1e72a88e2d79b4.jpg


    Fitting the hooks on the hammer spring

    20210922_230552_9eea161d13fa891c8e47a00be96d9def68d3ab94.jpg


    Filing the springs for fit.....

    20211003_173527_0de7bb6b31a3c0ff39500dcc75cbe6befc3a5fcb.jpg


    Fitting the trigger return spring

    20211003_173619_d7d40ab8561b0a655acf635ac3988864af5dac58.jpg


    The hammer spring before polishing

    20211003_174555_8534d57a4f8e918e617f3dc6bab3d4a106b03025.jpg



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    Heating the trigger return spring for bending


    20211003_175031_aaaaa483450f955beb3f5186d11043968a9d5938.jpg



    Shaping the trigger return spring


    20211003_175255_0a510384d8b7a93c9cebea7ad1b750522bca5b36.jpg



    Ready for fitting....


    20211003_175522_4ce081427b65f19b52bb53c8e95a4050ba2f8447.jpg



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    20211003_183921_2270ea47588c09b0d35a17df675eb4c191341a5f.jpg


    Notice the hammer return spring is not the same thickness throughout the spring. The original was thinner at the hook / stirrup end, so I filed it the same....

    20211018_223916_eb492974cb8837f6e2e0d1fe67b2c0dc4bf3a39a.jpg


    The trigger return spring after final fitting and tempering....

    20211018_224032_b76696ad6b86849e61f1ddb17f2c60848f3a0303.jpg



    20211018_224255_f67d86381a773c75a55744b0bf60158ce31cd3ae.jpg



    20211018_224309_1ed90f9532f7b884efb2b540a2f8c64997ba850f.jpg
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    Last edited:

    V-Tach

    Watching While the Sheep Graze
    Lifetime Member
    Rating - 100%
    7   0   0
    Sep 30, 2012
    8,895
    96
    Texas
    Nicely done. Sounds like you did a proper heat treat, which many do not understand. I usually temper v springs in my lead pot with the lead set at about 650 or so.

    Pretty cool how steel will float in molten lead.....have that available too, but the small nitre bluing tank was easier.........

    My propane torch crapped the bed so I used my acetylene torch........will replace the propane torch though...more economical for small items...
     

    TxStetson

    Opinionated and Irritable
    TGT Supporter
    Lifetime Member
    Rating - 100%
    4   0   0
    May 9, 2013
    10,056
    96
    The Big Country
    Pretty cool how steel will float in molten lead.....have that available too, but the small nitre bluing tank was easier.........

    My propane torch crapped the bed so I used my acetylene torch........will replace the propane torch though...more economical for small items...
    MAPP Gas will work on those little propane torches, and it burns quite a bit hotter, so things heat quicker.
     
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