ПЕРСПЕКТИВНЫЕ НАПРАВЛЕНИЯ ПОВЫШЕНИЯ ЭФФЕКТИВНОСТИ ШЛИФОВАНИЯ ПОВЕРХНОСТЕЙ ДЕТАЛЕЙ МАШИН

Abstract

The problem of grinding process increase for machine parts surfaces can be solved by means of abrasive disks design updating, their composition and impregnation technologies. The structures of multiple grinding wheels containing rods in a basic abrasive mass including conducting elements are offered. Such disks allow increasing quality in surfaces machined of parts made of tough hardtomachine steel and alloys on the basis of nonferrous metals on indices of roughness, technological residual stresses and burns. High efficiency show multi-sector abrasive disks of different grain allowing the increase considerably the intensity of material removal at machining parts made of chro-mium-nickel steel and alloys. The effective composi-tions of abrasive masses are developed for tool manufacturing including the introduction in them highstrength ferritic iron, chromium diiodide and wood resin. Polishing tools made of abrasive mass have 1.5 –twice higher durability between stropping operations and ensure the decrease of burn areas quantity on ma-chined surfaces of parts 2-2.5 times. The promising direction of the efficiency increase in parts surface grinding is the impregnation of abrasive disks by an aqueous solution of chromium diiodide which possesses high anticeptic properties and at the iodine emission forms iron iodides with a low constant of friction. As a result of this the temperature drops in the grinding area by more than 30%.