A 100 mm long cylindrical workpiece of diameter 50 mm is reduced to 25 mm diameter using extrusion process
Q. A 100 mm long cylindrical workpiece of diameter 50 mm is reduced to 25 mm diameter using extrusion process. The flow curve for the metal has strength coefficient as K = 750 MPa and the strain hardening co-efficient is 0.15. Assuming no friction and no redundant work, the required ram pressure (in MPa) is closest to
Ans: 950
Sol:
