中国机械工程 ›› 2023, Vol. 34 ›› Issue (01): 75-83.DOI: 10.3969/j.issn.1004-132X.2023.01.009

• 机械基础工程 • 上一篇    下一篇

表面处理对TiAlSiN涂层刀具表面完整性及切削性能的影响研究

吴振宇1;郑光明1;颜培2;杨先海1;赵光喜1;李学伟1   

  1. 1.山东理工大学机械工程学院,淄博,255000
    2.北京理工大学机械与车辆学院,北京,100081
  • 出版日期:2023-01-10 发布日期:2023-02-02
  • 通讯作者: 郑光明(通信作者),男,1986年生,副教授。研究方向为高性能刀具材料及刀具表面处理技术。E-mail:zhengguangming@sdut.edu.cn。
  • 作者简介:吴振宇,男,1995年生,硕士研究生。研究方向为涂层刀具表面处理技术。E-mail:690133049@qq.com。
  • 基金资助:
    山东省自然科学基金(ZR2020ME156);国家自然科学基金(52075306);国家重点研发计划(2018YFB2002202)

Effects of Surface Treatment on Surface Integrity and Cutting Performance of TiAlSiN Coated Cutting Tools

WU Zhenyu1;ZHENG Guangming1;YAN Pei2;YANG Xianhai1;ZHAO Guangxi1;LI Xuewei1   

  1. 1.School of Mechanical Engineering,Shandong University of Technology,Zibo,Shandong,255000
    2.School of Mechanical Engineering,Beijing Institute of Technology,Beijing,100081
  • Online:2023-01-10 Published:2023-02-02

摘要: 涂层刀具在高速干切削钛合金时容易出现刀具磨损严重、刀具寿命短等问题,对涂层刀具进行表面处理能改善涂层刀具的表面完整性,是提高涂层刀具耐磨性和切削寿命的有效途径。选取TiAlSiN涂层刀具,分别进行深冷处理、微喷砂处理和深冷+微喷砂处理,研究不同处理方法对涂层刀具表面完整性(包括表面形貌、表面粗糙度、显微硬度和表面残余应力等)的影响,并进行钛合金高速干切削试验,分析不同处理方法对涂层刀具切削性能的影响,探究提高涂层刀具耐磨性和切削寿命的方法。结果表明:与单一深冷处理和微喷砂处理相比,深冷+微喷砂处理后涂层刀具表面完整性明显改善,刀具寿命显著提高。深冷+微喷砂处理能减少刀具崩刃、月牙洼磨损和磨粒磨损,有效提高涂层刀具耐磨性。

关键词: 深冷处理, 微喷砂, 涂层刀具, 表面完整性, 切削性能

Abstract: Coated tools were prone to severe tool wear and short tool life when dry cutting titanium alloys at high-speed. The surface treatment of coated tools, which might improve the surface integrity of coated tools, was an effective way to improve the wear resistance and cutting life of coated tools. The TiAlSiN coated tools were selected and treated by cryogenic treatment, micro-sandblasting treatment and cryogenic + micro-sandblasting respectively to study the effects of different treatment methods on the surface integrity of the coated tools (including surface morphology, surface roughness, micro-hardness and surface residual stress, etc.). High-speed dry cutting experiments of titanium alloys were carried out to analyse the effects of different treatment methods on the cutting performance of coated tools and to investigate ways to improve the wear resistance and cutting life of coated tools. The results indicate that compared to the single cryogenic treatment and micro-sandblasting treatment, the surface integrity of the coated tool is significantly improved and tool life is significantly increased with cryogenic + micro-sandblasting treatments. Cryogenic + micro-sandblasting treatments may reduce tool chipping, crater wear and abrasive wear, and effectively improve the wear resistance of coated tools. 

Key words: cryogenic treatment, micro-sandblasting, coated tool, surface integrity, cutting performance

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