In order to solve the problem of short life and low processing efficiency of the tool during high-speed cutting,the study coats AlCrSiN on the tool to improve the hardness,toughness,wear resistance and oxidation resistance of the tool.The study prepares AlCrSiN coating on the substrate by changing the deposition temperature with arc ion plating technology;tests the hardness,bonding force and friction and wear properties of the coating by nanoindentation tester,scratch tester and high-temperature friction and wear tester.According to the experimental data,AlCrSiN coating is deposited on the surface of cemented carbide blade with the optimal process parameters,and the cutting performance is compared with that of nano-blue(AlTiN)coated blade.The results show that with the increase of deposition temperature,the hardness of the coating and the binding force of the film base increase linearly,but with the gradual increase of deposition temperature,the friction coefficient and wear of the coating will first decrease and then increase,reaching the lowest value at 350 ℃.In this case,the wear resistance of AlCrSiN coating is the best and the hardness and binding force of the film base are better.It shows that AlCrSiN coated milling blades have better wear resistance,longer service life,and better anti-crescent wear ability than nano-blue(AlTiN)coated milling blades.It be used for higher cutting speed.In addition,the ALCRSIN-coated milling blade has a smooth cutting process and small cutting force fluctuation,resulting in banded chips and little damage to the workpiece surface,while the nano-blue(AlTiN)coated blade produces C-shaped chips,which are easy to scratch the machined surface.
关键词
电弧离子镀/AlCrSiN涂层/纳米蓝(AlTiN)涂层/沉积温度/切削性能
Key words
Arc ion plating/AlCrSiN coating/Nano-blue(AlTiN)coating/Deposition temperature/Machinability
维普
万方数据