If the spread ratio coefficient of the particular metal under forging – McqOptions

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1.	If the spread ratio coefficient of the particular metal under forging is 1, this indicates that _____
A.	all the energy is gone in elongation
B.	all the energy went in spread the width
C.	the thickness of the material reached zero
D.	the thickness of the material remains unchanged
Answer» C. the thickness of the material reached zero

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