TiAlSiN涂层刀具高速干车削钛合金磨损机理研究  

Wear Mechanism of TiAlSiN Coating in High Speed Dry Turning of Titanium Alloy

作　　者：吴振宇 郑光明[1] 姜秀丽 杨先海[1] 李学伟[1] 刘焕宝 WU Zhen-yu;ZHENG Guang-ming;JIANG Xiu-li;YANG Xian-hai;LI Xue-wei;LIU Huan-bao(School of Mechanical Engineering,Shandong University of Technology,Zibo 255000,China;Shandong Machinery Design&Research Institute,Jinan 250031,China)

机构地区：[1]山东理工大学机械工程学院,淄博255000 [2]山东省机械设计研究院,济南250031

出　　处：《组合机床与自动化加工技术》2022年第6期172-174,179,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金(52075306);山东省自然科学基金(ZR2020ME156)。

摘　　要：TiAlSiN涂层硬质合金刀具材料力学性能较好,探究了TiAlSiN涂层刀具高速干切削钛合金的磨损机理,为改善刀具切削性能、提高加工效率提供指导。采用TiAlSiN涂层硬质合金刀具对TC4钛合金进行高速干车削试验,研究两种切削速度(v=80、120 m/min)下刀具的磨损机理。结果表明:TiAlSiN涂层刀具前刀面主要磨损机理为粘结磨损和氧化磨损,在高速时(v=120 m/min)还存在扩散磨损;TiAlSiN涂层刀具后刀面主要磨损机理为粘结磨损、氧化磨损和磨粒磨损;刀具在v=80 m/min时切削效果更好,切削速度越高,刀具磨损越严重。TiAlSiN coated carbide cutting tools have good mechanical properties.It explores the wear mechanism of TiAlSiN coated cutting tools in high-speed dry cutting of titanium alloy,providing guidance for improving cutting performance and machining efficiency.High-speed dry turning experiments of TC4 titanium alloy were carried out by using TiAlSiN coated carbide tool,and the tool wear mechanism was studied at two cutting speeds(v=80 and 120 m/min).The results show that the main wear mechanisms of TiAlSiN coated tool face are bond wear and oxidation wear,and diffusion wear also exists at high speed(v=120 m/min).The main wear mechanisms of TiAlSiN coated tool surface are bond wear,oxidation wear and abrasive wear.The cutting effect is better when v=80 m/min,and the higher the cutting speed,the more serious the tool wear.

关 键 词：涂层刀具 钛合金 干车削 磨损机理 

分 类 号：TH161[机械工程—机械制造及自动化] TG51[金属学及工艺—金属切削加工及机床]