电弧离子镀AlCrSiN涂层及其切削性能研究  

Study on Arc Ion Plating AlCrSiN Coating and its Machinability

作　　者：姜春昌 Jiang Chunchang(Shanghai Industrial Technology School,Shanghai 200231,China)

机构地区：[1]上海市工业技术学校,上海200231

出　　处：《黑龙江科学》2024年第20期80-83,共4页Heilongjiang Science

摘　　要：为解决刀具在高速切削时寿命短、加工效率低等问题,在刀具上涂覆AlCrSiN涂层提升刀具的硬度、韧性、耐磨性和抗氧化性能,采用电弧离子镀技术,通过改变沉积温度在基体材料上制备AlCrSiN涂层,利用纳米压痕仪、划痕测试仪和高温摩擦磨损试验机测试涂层的硬度、膜基结合力和摩擦磨损性能。根据实验所得数据,利用最优的工艺参数在硬质合金刀片表面沉积AlCrSiN涂层,并与纳米蓝(AlTiN)涂层刀片进行切削性能对比。结果表明,随着沉积温度的升高,涂层硬度和膜基结合力呈线性增加,但沉积温度的逐渐升高会使涂层的摩擦系数与磨损率先下降后升高,在350℃时为最低值,此时AlCrSiN涂层耐磨性能最佳且硬度和膜基结合力较好,说明AlCrSiN涂层铣刀片比纳米蓝(AlTiN)涂层铣刀片的耐磨性好,使用寿命长,具有更好的抗月牙洼磨损能力,可用于更高的切削速度。此外,AlCrSiN涂层铣刀片切削过程平稳且切削力波动较小,产生带状切屑,对工件表面破坏小,而纳米蓝(AlTiN)涂层刀片产生C形屑,易刮伤已加工表面。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 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TG71[金属学及工艺—金属学]