METHOD OF INTERMITTENT DIAMOND-ABRASIVE PROCESSING WITH INCISION OF INTERNAL GROOVES Russian patent published in 2008 - IPC B24B19/02 B24D17/00 B24B19/06 

FIELD: technological processes.

SUBSTANCE: prefabricated diamond-abrasive tool that is installed at spindle is inserted in the opening of rotary billet. Rotation and transverse delivery of incision are communicated to the spindle. Elastic diamond-abrasive tool is used in the form of two diamond-abrasive discs that are installed with the possibility of their longitudinal movement at spindle. Every disc is made with metal hub with height of H_d and ring-coiled spring that is installed on its peripheral surface. The latter has rectangular-shaped turns in longitudinal cross-section, which are rigidly and in cantilevered manner installed in longitudinal grooves of disc hub, which are made of metal strip and installed with large sides of turn in tool longitudinal direction. Diamond-abrasive layer is applied on external surface and butt ends of ring that is coiled from spring. Compensation of toll butt-ends surfaces wear is carried out by means of longitudinal displacement of one of the discs.

EFFECT: cutting thermal stress is reduced and processing efficiency and tool resistance are increased.

2 cl, 6 dwg, 1 ex