ABRASIVE TOOL WITH RADIAL OPENINGS AND AXIALLY SHIFTED CUTTING LAYER Russian patent published in 2002 - IPC

FIELD: manufacture of abrasive tools with axially shifted cutting layer for metal grinding at feeding cutting fluid through radial openings and pores of grinding discs. SUBSTANCE: abrasive disc is made with possibility of mounting on spindle with axial cavity and with possibility of feeding cutting fluid to working zone through axial cavity of spindle. Discs includes radial ducts designed for feeding cutting fluid to working zone. Said ducts are arranged only in near-end portions of disc. Said disc portions have variable height changing from 0 until (Bd-Bo) due to inclination by acute angle α relative to plane normal to rotation axis of central abrasive portion having no ducts. Such disc allows to reduce thermal stresses at grinding process, to intensify cutting modes by 15-20%, to prevent occurrence of burnouts, riffles, to lower roughness degree due to absence of disc unbalance as such discs are dynamically balanced. EFFECT: improved design, enhanced grinding quality. 6 dwg