In which of the following extrusion operations is friction a factor in determining the extrusion force:
A)direct extrusion
B)indirect extrusion

Question

Quizplus · Accepted Answer

In direct extrusion, the billet moves relative to the container, causing friction between the billet and the container walls. This friction is a significant factor in determining the extrusion force. In indirect extrusion, the billet is stationary relative to the container, and the die moves, which significantly reduces the friction involved.

In Which of the Following Extrusion Operations Is Friction a Factor