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A power press machine is used in the blanking operation through which a punch is attached.

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in Casting-Forming-Welding II by (119k points)
A power press machine is used in the blanking operation through which a punch is attached.

(a) True

(b) False

I had been asked this question in a national level competition.

The query is from Blanking and Piercing in section Forming Process of Casting-Forming-Welding II

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The correct choice is (a) True

Explanation: In the blanking operation, the main function of the punch is to strike the metal sheet, which is attached to the hub of the power press machine. The striking power is mainly dependent on the capacity of machine used. The punch is attached through the machine by means of tapering at its top locked by a nut.

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