In an orthogonal cutting experiment, as HSS tool having the following tool signature in the orthogonal reference system (ORS) has been used:
0-10-7-7-10-75-1
Given: Width of cut = 3.6 mm;
Shear strength of work piece material = 460N/mm2
Depth of cut = 0.25 mm;
Coefficient of friction at chip tool interface = 0.7
Shear plane angle (in degrees) for minimum cutting force is
(a) 20.5 (b) 24.5 (c) 28.6 (d) 32.5
Minimum Power requirement (in KW) at a cutting speed of 150m/min is
(a) 2.6 (b) 3.25 (c) 3.35 (d) 3.45