If the longitudinal feed in center-less grinding is expressed by
$${V_f} = \pi \,D.\,\,N\,\sin \,\alpha ,\,\,D$$ stands for

In small lot production for machining $$T-$$slots on machine tables, it is expected to use

When $$1.0\% $$ plain carbon steel is slowly cooled from the molten state to $$740C,$$ the resulting structure will contain

Gear hobbing produces more accurate gears than milling because in hobbing