Basic principles of broaching

In broaching metals and alloys, HSS broaches are used at cutting velocity of 10 to 20 m/min and carbide broaches at 20 to 40 m/min. The value of tooth rise varies within 0.05 mm to 0.2 mm for roughing and 0.01 to 0.04 mm for finishing teeth.

Different types of broaches

Grinding

Grinding wheel and workpiece interaction

Interaction of the grit with the workpiece

Effect of grinding velocity and rake angle of grit on grinding force

Variation of critical grit depth of cut with grinding velocity

Chip accomodation problem in grinding

Grit depth of cut and wheel-workpiece contact length

Determination of grit spacing and grit protrusion

Specific energy consumption

Specification of grinding wheel

Selection of grinding wheels Types of abrasives Aluminium oxide Silicon carbide Diamond cBN

Truing and dressing of grinding wheel

Surface grinding machine