In order to explore the material removal mechanism and the effects of milling force and hole quality in the helical milling processes of SiCp/Al composites,the formation mechanism of the machined surface was studied by finite element simulation,and then the accuracy of the simulation was verified by experiments.The influences of process parameters on milling force,hole wall process-ing morphology and entrance and exit edge quality were explored.The results show that the milling force in the helical milling processes decreases with the increase of spindle speed,and increases with the increase of pitch and revolution speed.The uniformity of machined surface morphology increases with the increase of spindle speed,and decreases with the increase of pitch and revolution speed.The quality of the outlet edge increases with the increase of the spindle speed and the revolution speed,and decreases with the increase of the pitch.The inlet edge quality decreases with the increase of spindle speed and pitch,and the revolution speed has no effect on the inlet quality.
关键词
螺旋铣削/铣削力/表面形成机理/出入口损伤/复合材料
Key words
helical milling/milling force/surface formation mechanism/entrance and exit dam-age/composite material
维普
万方数据