15 A cylindrical workpiece is forged in an open die. The workpiece is 60 mm in diameter and 30 mmhigh. The height after forging is 15 mm. The coefficient of friction at the die-work interface is0.20. The flow curve equation for the workpiece is defined as,0 = 800 80.2where o is in MPa. The forging force (in MN) at the end of the stroke is closest to

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ndrical workpiece is forged in an open die. The workpiece The height after forging is 15 mm. The coefficient of frict The flow curve equation for the workpiece is defined as, 00 €0.2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

15 A cylindrical workpiece is forged in an open die. The workpiece is 60 mm in diameter and 30 mm
high. The height after forging is 15 mm. The coefficient of friction at the die-work interface is
0.20. The flow curve equation for the workpiece is defined as,
0 = 800 80.2
where o is in MPa. The forging force (in MN) at the end of the stroke is closest to

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