Super-finishing and Blanking Operation

Super-finishing

It is also the fine finishing operation in which, a fairly large, boned abrasive stone, is kept pressing lightly against rotating workpiece. The workpiece is given a reciprocating motion in axial direction. In general, flat surfaces are finished by super-finishing operation.

Blanking

In blanking, a punch cuts through unprocessed workpiece and striped metal can be treated like scrap.

                                                        Figure: Principle of Blanking and Piercing Operation

Blanking operation results in a formation of a blank. Blanking is done by shearing and tearing operation. Principle of blanking operation is depicted in Figure.