Which one of the following metal forming processes is not a high energ

1.	Which one of the following metal forming processes is not a high energy rate forming process?
A.	Electro-magnetic forming
B.	Roll-forming
C.	Explosive forming
D.	electro-hydraulic forming.
Answer» C. Explosive forming

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Which one of the following metal forming processes is not a high energy rate forming process?

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