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Question 4 (a) Differentiate direct extrusion and indirect extrusion. Describe how the frictional force changes at the b
Posted: Mon May 02, 2022 2:55 pm
by answerhappygod
- Question 4 A Differentiate Direct Extrusion And Indirect Extrusion Describe How The Frictional Force Changes At The B 1 (52.57 KiB) Viewed 28 times
Question 4 (a) Differentiate direct extrusion and indirect extrusion. Describe how the frictional force changes at the billet/container interface in each extrusion process and explain why. (12 marks) (b) Why is more than one step required to achieve the desired reduction in wire drawing? (3 marks) (c) Briefly describe stretch forming. Why should the workpiece be stretched upon bending? (5 marks)