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A cylinder of height 60 mm and diameter 100 mm is forged at room temperature between two flat dies. Find the die load at the end of compression to a height of 30 mm, using slab method of analysis. The yield strength of the work material is given as 120 N/mm2 and the coefficient of friction is 0.05. Assume that volume is constant after deformation. There is no sticking.  Also find the mean die pressure.

                                     

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