The following data relate to an orthogonal turning process;
Back rake angle = 15deg
Width of cut = 2mm
Chip thickness = 0.4mm
Feed rate = 0.2mm/rev
The shear angle is
(a) 140 (b) 250 (c) 290 (d) 750
If the cutting force and the thrust force are 900N and 810N, the mean strength in Mpa
(a) 138.94 (b) 477.91 (c) 500.58 (d) 635.84