When carbon steel is machined in lathe with a HSS tool, the maximum allowed cutting speed V is 27m/min and the maximum feed is 0.25mm per revolution. As a production engineer, you have decided to reduce the length of a rod by 3.3mm in three machining steps. the diameter of the rod is 100mm. Neglect the cutting allowance. (Hint: depth of cut is equal for all the passes) Estimate the average (actual) MRR, with no cutting allowance in "mm^3/min"
A. 11137 mm3/min
B. 7424 mm3/min
C. 23 mm3/min
D. 3712 mm3/min