question_answer

Which of the following statements are the salient features of hydrostatic extrusion?

(1) It is suitable for soft and ductile material

(2) It is suitable for high-strength super-alloys

(3) The billet is inserted into the extrusion chamber and pressure is applied by a ram to extrude the billet through the die

(4) The billet is inserted into the extrusion chamber where it is surrounded by a suitable liquid. The billet is extruded through the die by applying pressure to the liquid.

Select the correct answer using the code given below:

Codes:

A) 1 and 3            

B) 1 and 4

C) 2 and 3            

D) 2 and 4