Ps

A rectangular workpiece of width 10 inches and thickness 1 inch is being compressed between two flat dies to a final thickness of 0.5inches. The length of the die is 3 inches. The material is assumed to be rigid-perfectly plastic with tensile yield strength of 10,000 psi. a) Determine the capacity of the press if, (i) friction is neglected, (ii) friction coefficient is 0.1, and (iii) sticking condition exists at the tool-workpiece interface. b) If a drop hammer is selected to accomplish this task, from what height would be a 800lbfhammer have to fall to operation in a single blow (for the condition with no friction). c) If the material characteristic is now altered to be =100000.2psi., compute the press capacity for a friction coefficient of 0.1.

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