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  1. #1
    TBandy is offline Plastic
    Join Date
    Nov 2006
    Location
    Miami, Florida
    Posts
    28

    Unhappy Rivet Squeezing Force

    Hi All.
    I'm in the need of a riveting machine and I have all the material to fabricate it
    including the pneumatic cylinder cus I want to make it pneumatic, but not sure what is the force required to squeeze A 5/16 mild steel rivet, does anyone of you guys can answer
    This question ?

    Any comments will be highly appreciated,

    All the best to you all.

    PS. I have an 8" bore Pneumatic cylinder that can easily deliver 5000 pounds @ 100 PSI and I can use a lever to increase the power, But not sure about the the force required to
    Squeeze the 5/16 mild steel rivet.

  2. #2
    Jburgess is offline Aluminum
    Join Date
    Sep 2004
    Location
    Az, USA
    Posts
    179

    Default

    About 15,000 pounds in my experience. May be a little more or less depending on the dies you use. Trying to form a round head instead a flat head seemed to take more force as best as I remember.

  3. #3
    Question Boy's Avatar
    Question Boy is offline Hot Rolled
    Join Date
    May 2005
    Location
    Napa, California
    Posts
    947

    Default

    You may be able to buy a proper orbital or radial rivet setter for less than the cost of building your own. There are plenty of ebay sellers listing riveters in the 'dreamland' price range. But there are also sellers who need to move inventory, and will accept offers. The seller I bought from has others listed, and is willing to deal.

    To see how radial/orbital riveting works visit this link: http://www.vsiauto.com/flash/OrbitalDemo.asp

    QB

  4. #4
    Glenn Wegman is offline Stainless
    Join Date
    Jan 2007
    Location
    Florida
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    1,014

    Default

    I have a CP pneumatic riveting machine that is rated a 24000 lbs at 90 psi. It lists the maximum size rivet it will squeeze as 3/8 steel, but also states that it depends on grade and hardness of the rivet.

  5. #5
    Ries's Avatar
    Ries is offline Diamond
    Join Date
    Mar 2004
    Location
    Edison Washington USA
    Posts
    8,320

    Default

    I have a ten ton enerpac C Clamp squeezer,
    one of these-
    http://www.enerpac.com/en/products/m...-clamp-presses

    that I use with homemade dome head dies to squeeze rivets, and I would think 5/16" would be pushing it. Probably depend on what you expect in a head form- if its important you get a cosmetic round head, or if you just want strength.
    So 5000lbs is pretty low, if you ask me.

    I use a 30 ton hydraulic cylinder, to reliably squash 1/4" stainless rivets.

    More power is always better.

  6. #6
    surplusjohn is offline Diamond
    Join Date
    Apr 2002
    Location
    Syracuse, NY USA
    Posts
    9,200

    Default

    I agree on orbital riveter.
    for pressing, look at using a toggle arrangement for multiplying your force.

  7. #7
    Mark Rand is online now Titanium
    Join Date
    Jul 2007
    Location
    Rugby, Warwickshire. England
    Posts
    3,028

    Default

    One pound ball peen hammer. But you need to work quick with that small a rivet because they cool down quickly

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