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  1. #1
    Administrator Cebby's Avatar
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    How to form 3/16" plate?

    I have an idea for some offroad protection and was wondering if I'm barking up the wrong tree. I'd like to get these laser or waterjet cut and then formed.

    Material - 3/16" plate like the section sketch attached. The dims are rough, but the shape is probably close.

    This profile would be on a piece approximately 60" long or so. I deally this would be one piece, but I'm not opposed to piecing it together. I'm thinking of producing these in quantity though, so the less post production work I have to do, the better.

    So, have I completely lost it?
    My vehicle sites: 1993 Toyota 4Runner & 2000 Jeep Grand Cherokee

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  2. #2
    Contributing Member MXtras's Avatar
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    Re: How to form 3/16" plate?

    Well - what you have can be done a few ways, but none are cheap in low volumes.

    The easiest way to get the shape is in a CNC pressbrake if the curved area could have faucets (several small bends to get the curve).

    To get the rounded shape perfectly smooth it would require dedicated tooling ($$) in either a larger rolling mill or a die forming set in a fairly substantial press. Both of these options would have a pretty serious tooling cost commitment and would have to run on pretty heavy equipment due to the thickness spec.

    Scott
    If it wasn't for the last minute I wouldn't get anything done

  3. #3
    Administrator Cebby's Avatar
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    Re: How to form 3/16" plate?

    If I changed the curve to a single chamfer (or maybe two chamfers), could it be bent conventionally (ie no CNC).

    See attachments for other possible profiles that might work.
    My vehicle sites: 1993 Toyota 4Runner & 2000 Jeep Grand Cherokee

    **NEW** - UZswap.com - a site dedictated to sharing tech about swapping Toyota V8's into 4Runners and Trucks

  4. #4
    Contributing Member MXtras's Avatar
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    Re: How to form 3/16" plate?

    You have simplified the shape to the point where just about any shop with a decent brake could make them. That's always a good thing.

    What's next?

    Scott
    If it wasn't for the last minute I wouldn't get anything done

  5. #5
    Administrator Cebby's Avatar
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    Re: How to form 3/16" plate?

    I need to figure how to cap the ends cleanly, add optional outside tubes, and build a mockup.
    My vehicle sites: 1993 Toyota 4Runner & 2000 Jeep Grand Cherokee

    **NEW** - UZswap.com - a site dedictated to sharing tech about swapping Toyota V8's into 4Runners and Trucks

  6. #6
    Contributing Member MXtras's Avatar
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    Re: How to form 3/16" plate?

    Just have some end caps laser cut to your shape and weld 'em in place.

    Need a quote?

    Scott
    If it wasn't for the last minute I wouldn't get anything done

  7. #7
    Contributing Member MXtras's Avatar
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    Re: How to form 3/16" plate?

    Bumpity-bump-bump!

    Any progress, Cebby?

    Scott
    If it wasn't for the last minute I wouldn't get anything done

  8. #8

    Re: How to form 3/16" plate?

    Could these pieces be made in fiberglass?

  9. #9
    Administrator Cebby's Avatar
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    Re: How to form 3/16" plate?

    Hey all -

    These are rocker protection for Jeep Grand Cherokee's, so they need to be steel. I've not had any time to devote to it being baseball season for the kids and all. A few more weeks, then All-Star season (in which I can actually take a breather since I'm not running it for once...)
    My vehicle sites: 1993 Toyota 4Runner & 2000 Jeep Grand Cherokee

    **NEW** - UZswap.com - a site dedictated to sharing tech about swapping Toyota V8's into 4Runners and Trucks

  10. #10
    Registered User VegasBruce's Avatar
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    Re: How to form 3/16" plate?

    Cebby, to form them on a radius in a conventional brake you could use a series of step brakes. Braking it to the angles is simple with the correct equipment, the brake i use at work would bend it up no problem. Other than the dies they have for 3/16 can't make a bend smaller than 1". Any good sheetmetal shop in your area should be able to bend that. You can also check around for a stainless specialty shop, they may have a set of radius dies that may come close to what you want.
    Bruce

    A craftsman is someone who does a better job than anyone thinks is necessary.

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