Q. The cold forming process in which a hardened tool is pressed against a workpiece (when there is relative motion between the tool and the workpiece) to produce a roughened surface with a regular pattern is
(A) Roll forming (B) Strip rolling (C) Knurling (D) Chamfering
Ans: Knurling
Sol:
It is a process of impressing a diamond shaped or straight line pattern on the surface by a workpiece by using specially shaped hardened metal wheels to improve its appearance and to provide a better gripping surface.
