Question

write the difference between forward extrusion and back extrusion?​

Answer 1

Answer:

Backward or indirect extrusion is used to make hollow shapes, because the punch is solid and thrusts the material around itself into the space between itself and the die. The other sort of impact extrusion, forward (or direct) extrusion, can only produce solid sections.

Answer 2

Backward or indirect extrusion is used to make hollow shapes, because the punch is solid and thrusts the material around itself into the space between itself and the die. The other sort of impact extrusion, forward (or direct) extrusion, can only produce solid sections.