Determine the temperature rise in the specimen for each case in Problem 6.75 (Open-die forging of...

Determine the temperature rise in the specimen for each case in Problem 6.75 (Open-die forging of a cylindrical, annealed copper specimen 10 mm high and 25 mm in diameter, up to a reduction of 50%, for the cases of (a) no friction between the flat dies and the specimen, (b) ? = 0.10, and (c) ? = 0.30. Ignore barreling.), assuming that the process is adiabatic and the temperature is uniform throughout the specimen. Given: K=315 MPa; n=0.54 from table 2.2 p.38. ?=8970 Kg/m3 ; CP=380J/KgK from inner cover page.

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samet mamat answered 1 year ago

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