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Determine the force vs reduction in height curve in open-dye forging of a cylindrical, annealed copper...

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Mechanical Engineering

Determine the force vs reduction in height curve in open-dyeforging of a cylindrical, annealed copper specifmen 10mm high and25mm in diameter, up to a reduction of 50% for the followingcases:

a) no friction between the flat dies and the specimen

b) u=0.10

c) u=0.30

Ignore barreling and use average pressure formulas.

Then, calculate the work done and the temperature rise in thespecimen for each case, assuming the process is adiabatic and andthe temperature is uniform throughout the specimen.

Use the following values:

K=315KPa

n=0.54

Cp=380J/kgK

p(rho)= 8970k/m^3

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