Experimental research on the tool wear during precision milling process of SiC_p/Al composite materials

For the problem of serious tool wear, short tool life and high cost during the milling process of SiCp/Al composite materials, the wear patterns of carbide alloy cutters and diamond tool were investigated with scanning electron microscopy and microscope. The results showed that the main form of rake face wear and cutting edge failure were adhesive wear and chipping tip, the main form of flank wear was scratching, and the wear of PCD was very tiny. The material of YG6X cutter is dense, so it is wear resistant and should be used for rough machining, the PCD tool is harder than SiC particles and the coefficient of friction between PCD tool and workpiece is small, the life of diamond carbide milling cutter is much larger than that of the carbide alloy tools, so PCD tool is usually used for precision machining.