Study On The Mechanism And Surface Characteristic For Abrasive Jet Precision Finishing With Grinding Wheel As Restraint

The conventional grinding makes surface defects such as severely deformation,micro-crack, tensile residual stresses,surface layer pollution and ground burnout because of high grinding zone temperatures. At the same time,the machined surface roughness and ripple values are also bigger. Such more grinding defects, if not well diminished, would effect the ground surface fatigue strength, resistance corroding capacity and contact rigidity. Accordingly, more important parts require micro removal machining in order to reduce surface defects and diminish surface roughness and ripple. However, this can increase working procedures and extra equipment lead to increase costs.According to above mention, author invent a newly abrasive jet precision finishing method, which inject slurry of abrasive and liquid solvent to grinding zone under haven't depth of cut infeed condition when accomplished workpiece grinding. The abrasive particles with grinding wheel as restraint are driven and energized by the rotating grinding wheel and liquid hydrodynamic pressure and increased slurry speed between grinding wheel and work surface achieved micro removal finishing process. The investigate showing,the micro removal machining with grinding wheel as restrain, not only to attain higher surface form accuracy but also to can acquire efficiently free defects finishing surface with R_a0.15~1.6μm and finally achieve high efficiency, high precision and low roughness values, furthermore, Integrating grinding process and polishing into one features, namely surface precision finishing. In the paper, the systematical research on the mechanism and surface characteristic of machined surface for abrasive jet finishing with grinding wheel as restraint by theoretical and experimental investigation and...