Given the following information for an oblique cutting operation: normal rake angle = -12 degrees, angle of inclination = 15 degrees, width of cut = 0.15 inches, depth of cut = 0.05 inches, fc = 650 lbs, ft = 380 lbsdetermine: a) the equivalent rake angle b) the forces on the tool face c) the friction angle d) the shear angle e) the shear stress and normal stress on the chip.

A1.5-in-diameter bar has been machined from an aisi 1050 cold-drawn bar. this part is withstand a fluctuating tensile stress varying from 0 to 18.0 kpsi. because of the ends, and the fill radius, a fatigue stress-concentration factor ky is 1.6 for 10 or larger life. the fully correcte endurance limit is s 34 kpsi, sat= 100 kpsi and s, 84 kpsi. find the factor of safety guardin against fatigue, using the modified goodman fatigue line and first-cycle yielding