Research on Abrasive Pool Finishing Process Based on Gas-Solid Two-Phase Flow Principle
In order to reduce the surface roughness of the workpiece and obtain a bright,flat surface processing method,based on the principle of gas-solid two-phase flow,the abrasive pool processing test device was established.The single-factor experimental meth-od was used to analyze the optimal interval of the process parameters affecting the surface roughness of the workpiece,then orthogonal test and polar analysis method was used to obtain an optimal combination of the processing parameters with the influence factors such as air pressure,temperature,abrasive grain size,spindle speed.Finally,the surface of the workpiece was subjected to a morphology analysis.The experimental results show that the optimal interval of process parameters affecting the surface roughness of the processed workpiece is that air pressure is from 0.45 MPa to 0.65 MPa,temperature is from 300℃to 700℃,abrasive grain size is from 160 mesh to 240 mesh,spindle speed is from 1 000 r/min to 1 200 r/min;the optimal combination of machining parameters for the square tube and the circular tube in the process of polishing and finishing of the abrasive pool is A2B3C3D2;the surface morphology analysis shows that the overall surface quality of the circular tube is better than that of the square tube.
gas-solid two-phase flowabrasive pool processingorthogonal testsurface topography