In deep drawing, the drawing force required decreases as strain increases on the metal.(a) True(b) FalseThis question was addressed to me by my school principal while I was bunking the class.I need to ask this question from Deep Drawing topic in chapter Mechanical Working of Metals of Casting-Forming-Welding II

In deep drawing, the drawing force required decreases as strain increa

1.	In deep drawing, the drawing force required decreases as strain increases on the metal.(a) True(b) FalseThis question was addressed to me by my school principal while I was bunking the class.I need to ask this question from Deep Drawing topic in chapter Mechanical Working of Metals of Casting-Forming-Welding II
Answer» Right answer is (b) False For explanation: In the deep or cup drawing process, the drawing FORCE required generally increases linearly with the punch STROKE as the strain increases on the metal. This mainly occurs DUE to strain hardening of MATERIAL, which makes the forming material less DUCTILE and the strength of the material substantially increases due to strain hardening.

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