INFLUENCE OF THE GEOMETRIC CHARACTERISTICS OF THE DISCONTINUOUS PROFILE WORKING SURFACES OF ABRASIVE WHEELS FOR PRECISION AND TEMPERATURE WHEN GRINDING

Grinding is the most common finishing method for hardened steel parts. accompanied by a large heat release in cutting area, under influence of which structural changes appear thin surface processed parts, tensile stress and even microcracks, significantly reduce operational reliability machines that include these The use abrasive wheels with an intermittent working makes it possible to temperature area contact grains material workpiece and, as consequence, stabilize quality layer workpieces. High-frequency vibrations elastic system machine, accompanying work wheel, are positive factor reduces energy consumption grinding process. However, certain conditions dynamic interaction tool workpiece, parametric resonance may occur, worsens geometric physical-mechanical parameters part. aim realize possibility predicting parts during studying design features macrotopography processing modes on nature area. It was found machine can be shifted more stable due increase number interruptions wheel constant ratio length protrusions depressions. breaks also contributes decrease maintain operation necessary cavities speed. both actions has been experimentally established ordinary (pendulum) grinding, achieve productivity increasing speed longitudinal movement table.