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karthur1
Posts: 4,156
Registered: ‎04-27-2005
Message 1 of 4 (185 Views)

Bending shape around a die

185 Views, 3 Replies
10-17-2012 09:02 AM

I have a part that we are looking at manufacturing.  The part will be formed by bending the part to a specified radius. Basically bending the part around a die.  I am trying to figure what force will be required to create this bend.  Is there a way to get an idea of this force from Inventor? I know that there will be spring back, but I am not really concerned with that right now.

 

I am sure that Simulation would show the part being formed, but I am looking for the force also.

 

Maybe its not possible, idk.

 

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mcgyvr
Posts: 6,646
Registered: ‎12-01-2004
Message 2 of 4 (168 Views)

Re: Bending shape around a die

10-17-2012 10:18 AM in reply to: karthur1

Who needs an Engineer when you have FEA and online calculators.. oh wait.. :smileyhappy:

http://www.custompartnet.com/calculator/sheet-metal

 

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Down with IDW/DWG files..... Long live 3D PMI... Hurry it up already..
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karthur1
Posts: 4,156
Registered: ‎04-27-2005
Message 3 of 4 (157 Views)

Re: Bending shape around a die

10-17-2012 11:46 AM in reply to: mcgyvr

I have a chart I can go by for flat plate.... but this site is pretty neat.  The shape that I am trying to figure out is a Tapered hollow octagon.... something like this.  "I" varies down the length.

Tapered Oct.jpg

*Expert Elite*
karthur1
Posts: 4,156
Registered: ‎04-27-2005
Message 4 of 4 (131 Views)

Re: Bending shape around a die

10-17-2012 01:49 PM in reply to: karthur1

I ended up calculating it by using the max stress on a cantilevered beam (W*l / Z).  For the "Z", I used the formula in the Mach HB.  I think that got me in the ballpark anyway.

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