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In the deep drawing process, a clearance is provided between the punch and die to succeed the forming operation.(a) True(b) FalseI got this question in class test.This key question is from Deep Drawing topic in chapter Mechanical Working of Metals of Casting-Forming-Welding II

Answer» RIGHT CHOICE is (a) True

The best explanation: During deep drawing operation of metal sheet into the die, there is THICKENING of the metal sheet up to 12%. Therefore, a clearance is provided between the punch and die to succeed the forming operation. The radial clearance is provided which is almost equal to the THICKNESS of metal sheet plus the thickening of sheet.


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