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Thread: Spring Alternate Sought

  1. #1
    theredbaron
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    Spring Alternate Sought

    'm working on a small design idea and need a spring to bend/flex on a punching impact.

    a metal spring, if caught by this blow would obviously cause an injury and I am therefore seeking an alternative such as rubber.

    So far I have been unsuccessful finding anything that could be used.

    Any Ideas?

  2. #2
    Lead Engineer RWOLFEJR's Avatar
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    Mar 2011
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    Hi and welcome to the forum,
    You might want to do a search... die springs or punch springs. I'm not very involved with punch work but I recall seeing gas springs out there for this sort of thing. Also might consider Bellville spring washers?
    Good Luck,
    Bob

  3. #3
    Technical Fellow jboggs's Avatar
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    Most spring manufacturers offer urethane springs for this very type of appplication. Contact one or two of the larger houses. They can help you out.

  4. #4
    Technical Fellow
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    Ummm, Bob, slow down. I think he is talking about fist/hand/slap punches on his device.

  5. #5
    Lead Engineer RWOLFEJR's Avatar
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    Oh...
    Yep after re-reading the original post I see that now. Doh!!

  6. #6
    Associate Engineer
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    Apr 2012
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    Confused

    Not sure what the application is, but that is also how I read it. Why not use some type of foam pad over a backet attached to springs? I assume by bend/flex you mean to compress?

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