plastic deformation

Wire drawing operation is performed on a perfectly plastic metal without any strain hardening. Assuming no friction and no redundant work, the maximum possible percentage reduction...

In solid-state welding, the contamination layers between the surfaces to be welded are removed by

A solid cylinder of diameter $$100$$ $$mm$$ and height $$50$$ $$mm$$ is forged between two frictionless flat dies to a height of $$25$$ $$mm.$$ The percentage change in diameter is

A test specimen is stressed slightly beyond the yield point and then unloaded. Its yield strength