10. The force required in punching a 15 mm side square hose inrouge 20 JUNE
eet at room temperature, assuming UTS is 190 Mpa, is:
a. 15,960 N
b. 10,960 N
c. 20,960 N
d. 80,960 N
e. None of the above
11. The punching force required to produce a stainless-steel cup from a sheet of 1 mm in thickness, 120 mm
in diameter using a punch of 40 mm in radius, under an ultimate tensile strength of 418.9 MPa is:
a. 121,073 N
b. 164,073 N
c. 364, 073 N
d. 764,073 N
e. None of the above
neessure is not enough, the produced part in deep drawing process will probably