The influence of blasting pressure and blasting time on the micro geometry of cutting edge and the surface roughness of cutting insert is studied by using single factor method,and the reasons which affect the micro geometry and surface roughness of cutting edge are analyzed and explained.The results show that the radius of cutting edge increases line-arly with the increase of blasting pressure.With the increase of blasting time,the increase of cutting edge radius gradually slows down,and the effect of blasting pressure on cutting edge radius is more obvious.When the blasting pressure reaches 0.28MPa,the roughness of cutting edge and rake face increases significantly,while the roughness of flank face is less affect-ed by the blasting pressure.Withthe increase of blasting time within0.4～1min,the roughness of the cutting edge and the flank face decrease,and the roughness of the rake face is relatively stable.
维普
万方数据