Determine the temperature rise in the specimen for each case inProblem 6.75 (Open-die forging of a cylindrical, annealed copperspecimen 10 mm high and 25 mm in diameter, up to a reduction of50%, for the cases of (a) no friction between the flat dies and thespecimen, (b) ? = 0.10, and (c) ? = 0.30. Ignore barreling.),assuming that the process is adiabatic and the temperature isuniform throughout the specimen. Given: K=315 MPa; n=0.54 fromtable 2.2 p.38. ?=8970 Kg/m3 ; CP=380J/KgK from inner coverpage.
