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Bending round bar or rod
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Posted by: wsr-tooling

08/29/2008, 12:53:40

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I have a project I'm working on that may require me to wipe bend or form some round steel bar stock (3/4 or up to 1 inch diameter, 4130 annealed (80 KSI tensile))in a stamping press. I'm finding little reference materials related to calculating bending force for round stock.

I'm wondering if you have or know of a good bending force formula for bending round bar. I'm used to dealing with sheet or coil stock and don't quite know how to set up the bending force requirements for this.

I would appreciate any help you could provide or if there's a particular book that would help me keep from needing to go way back to my strength of material text books and digging around, starting from scratch.

Thanks in advance for any help offered.








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: Bending round bar or rod
: Bending round bar or rod -- wsr-tooling Post Reply Top of thread Forum
Posted by: efendy

09/16/2008, 03:36:08

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i dont think there's any 'good bending force formula' because there always be the necessary formulae to be used.

anyway, before you bend, identify the specific deflection you want. from there you could use
delta(deflection) = certain formula (depend on what type of loading you applied);with function of E,I,L and F

which means, you need to refer to your book for the formulae to be used. easier way to get the formula is from the Mechanical Engineering Design Book (in the Appendix-hope it is still there cause i'm using the old one)








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