Thread: Flywheels achieving linear motion
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Unread 31-12-2005, 11:30
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Bill Beatty Bill Beatty is offline
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Re: Flywheels achieving linear motion
Our company has been designing and building flywheel driven punching and shearing machines for more than 85 years. To produce a good punched hole you must have a die opposite the punch on the other side of the material. The force necessary to punch mild (C1020) steel is approximately 50,000 lbs per square inch of sheared area. Therefore to punch a 2 inch diameter hole through .125 thick steel will take 2 x 3.14 x .125 x 50,000 lbs. of force. This is the force in a blanking operation. Mild steel will fracture after approximately 33% break through. The energy to produce this hole will be the force X .125/3.

Hope this helps.

Mr. Bill
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