METHOD OF FORMING CHIP SEPARATING GROOVES ON BROACH Russian patent published in 1997 - IPC

FIELD: metal working; making of broaches for machining outer and inner surfaces and other cutting tools with chip separating grooves. SUBSTANCE: axis of rotation of grinding wheel and axis of broach are arranged in parallel planes under crossed axes angle differing from right angle and then grinding wheel is fed for cutting in. Point of crossing of axes of grinding wheel and broach are displaced along broach axis from projection of cutting edges towards side of following or preceding tooth. EFFECT: improved quality of groove forming. 2 cl, 3 dwg