Effects of Milling Parameters on Surface Quality and Chips of SiCp/Al Composites
Aluminum based silicon carbide(SiCp/Al)composite has a broad application prospect in the field of aer-ospace because of its excellent mechanical and thermal properties.However,the presence of reinforced particle SiCp serious-ly affects the cutting surface quality of SiCp/Al composite.The surface quality and chip morphology of SiCp/Al composites with different milling parameters are studied by using surface profilometer and scanning electron microscope,and the rough-ness model related to feed rate and milling speed is constructed.The results show that the roughness value increased with the increase of feed rate and milling speed.The milling speed is the dominant factor in the evolution of the microstructure characteristics of the machined surface,and the pits are less with the increase of milling speed.In addition,the chips under different milling parameters are crumbling,and the faster the milling speed,the smaller the chip size.
aluminum based silicon carbidemillingsurface qualitychip