Question: What is extrusion? ( a ) A drawing process in which a workpiece is forced to flow through a die opening, thus taking the crosssectional

What is extrusion?
(a) A drawing process in which a workpiece is forced to flow through a die opening, thus taking the crosssectional shape of the die opening.
(b) A compression forming operation in which a workpiece is forced to flow through a die opening, thus taking the cross-sectional shape of the die opening.
(c) A forging process in which a workpiece is forced to flow through a die opening, thus taking the crosssectional shape of the die opening.
(d) All of them
What is extrusion? ( a ) A drawing process in

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