In a turning operation the feed rate t is .13 mm (.005 in.) and the depth of cut normal to the plane of the paper is 2.5mm (.100 in). The cutting speed is 245 m/min (800 fpm). The cutting force F_c is found to be 1780N (400lb) and the normal force F_t is 890 N(200lb). The rake angle of the tool is +8 degrees.
find:
a) the power required for the cut in KW (hp)
b) the rate of metal removal in cm^3/min (in^3/min)
c) the unit power in kW/cm^3/min (hp/in^3/min)