In blanking operation, the best way to improve the smoothness and squarness of the edges is to

The function of draw bead in the deep drawing operation is to

In metal forming operation, the true strain in the $$X$$-direction is $$0.3$$ and in the $$Y$$-direction is $$-0.1.$$ The true strain in the $$Z$$-direction is

Forces in hot extrusion is a function of the strain hardening component of the billet material.