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1. |
A 10 mm diameter annealed steel wire is drawn through a die at a speed of 0.5 m/sec to reduce the diameter by 20%. The yield stress of material is 800 MPa. Neglecting friction & strain hardening, calculate the power required for the drawing process (in kW) is _____? |
A. | 8.97 |
B. | 14 |
C. | 17.95 |
D. | 28 |
Answer» B. 14 | |