Q1) Determine the cutting force and feed (thrust) force for a turning operation using the following parameters: Material tensile strength 250MPa, Shear strength 120 MPa, chip thickness ratio r = 0.45, depth of cut = 3.0, and rake angle 6 degree, cutting speed 2.5 m/s, feed 0.2 mm/rev.
Q2) A drilling operation is performed on a steel part using a 12.7-mm-diameter twist drill with point angle = 118dgree. The hole is a blind hole with a depth of 60 mm. Cutting speed = 15 m/min, and feed = 0.20 mm/rev. Determine (a) cutting time of the operation and (b) metal removal rate after the drill bit reaches full diameter.
