In open-die forging, a disc of diameter 200 mm and height 60 mm is com – McqOptions

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1.	In open-die forging, a disc of diameter 200 mm and height 60 mm is compressed without any barreling effect. The final diameter of the disc is 400 mm. the true strain is
A.	1.986
B.	1.686
C.	1.386
D.	0.602
Answer» D. 0.602

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