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Thread: Small dia tube bending with tight radius?

  1. 9th February 2006, 10:14 PM #1
    RR5L Guest

    Small dia tube bending with tight radius?

    Does any one know a place on Melbourne where I can get 5/16" (7.9mm) Stainless Steel or Mild Steel tube bent with a 90 °bend and a radius of no more than 16mm?

    I have a tried a few tube bending companies but lowest they go is 25mm Radius
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  2. 9th February 2006, 10:20 PM #2
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    hiline
    hiline is offline Swaggie Subscriber
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    i could ask pete

    the guy you used to work with yrs ago


    i'm sure he'll do it for you
    130's rule
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  3. 10th February 2006, 05:57 PM #3
    RR5L Guest
    Hey Ray,
    Thanks for the offer, what I dont want is the tube to collapse as. Im guessing it will need a mandrel of sortsd to prevent that.
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  4. 10th February 2006, 07:01 PM #4
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    hiline
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    i'll ask him Sunday arvo when he gets back
    130's rule
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  5. 10th February 2006, 07:55 PM #5
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    discowhite
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    can you fit eg, fencing wire, up the pipe???
    if you can find the right size wire and insert it in the pipe,
    it will-should stop the tube from collapsing.(if its copper or alloy)

    if its good quality SS tube then it should not collapse (only if you kink it). ive made alot of SS oil/air lines around the traps and havent had them
    collapse.

    try some test bits first.

    cheers phil
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  6. 11th February 2006, 07:29 AM #6
    sheff Guest
    The old trick was to fill the part you want to bend with molten resin or sealing wax. (bung a bit of paper in to stop it running straight through)
    Make your bend, then simply heat to melt the wax out.
    If you can make a former, deep groove, its even easier.
    sheff
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  7. 11th February 2006, 12:40 PM #7
    RR5L Guest
    Thanks guys, Good ideas. I remember someone also saying that filling the pipe with sand worked as well. But I like the idea of wax as it would be easy to remove afterwards.
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