cutting parameters in common grinding operations

Question

If each abrasive grain is viewed as a cutting tool, then which of the following represents the cutting parameters in common grinding operations?

(a) Large negative rake angle, low shear angle and high cutting speed

(b) Large Positive rake angle, low shear angle and high cutting speed

(c) Large negative rake angle, high shear angle and low cutting speed

(d) Zero negative rake angle, high shear angle and high cutting speed

Answer 1

A is correct.

As grinding is a high speed operation large negative angle of abrasive is considered.