In extrusion of metals, which of the following statement is true? (A) Speed of the extruded material is same as that of ram speed (B) Redundant work is a function of the die angle
(C) Relative motion between the billet surface and the container wall is always present
(D) Hollow ram is used for indirect extrusion

1 Answer

Answer :

(D) Hollow ram is used for indirect extrusion

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