Question

Define the angles of a simple cutting tool and the purpose of having such angles

Answer 1

Answer:

Explanation:

Rake Angle Clearance Angle

Inclination of rake surface of the cutter is indicated by rake angle. Inclination of flank surface of the cutter is indicated by clearance angle.

Rake angle can be negative, zero or positive. Clearance angle must have a positive value. It cannot be negative or zero.

It influences chip flow and shear deformation but has insignificant influence on surface quality and accuracy. It directly influences surface quality and accuracy; but does not play any role in chip flow and shear deformation.

Built up edge (BUE) can unfavorably change the rake angle. BUE cannot alter clearance angle.