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...