China Mechanical Engineering ›› 2020, Vol. 31 ›› Issue (15): 1772-1777.DOI: 10.3969/j.issn.1004-132X.2020.15.002

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Milling Process Tests of Diamond Coated Micro-milling Cutters

ZHANG Yongbin1, YAN Guanghe1,2, LI Jianyuan1, JIANG Chen2   

  1. 1. Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, Sichuan, 621900;
    2. College of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai, 200093
  • Received:2019-07-06 Online:2020-08-10 Published:2020-08-26

金刚石涂层微铣刀的铣削加工试验

张勇斌1, 严广和1,2, 李建原1, 姜晨2   

  1. 1. 中国工程物理研究院机械制造工艺研究所, 绵阳, 621900;
    2. 上海理工大学机械工程学院, 上海, 200093
  • 通讯作者: 严广和(通信作者),男,1995年生,硕士研究生。主要研究方向为超精密加工技术。E-mail:252510947@qq.com。
  • 作者简介:张勇斌,男,1975年生,研究员。主要研究方向为微细特种加工技术、工艺、设备的研究与应用。E-mail:zcaep6@163.com。
  • 基金资助:
    国家自然科学基金资助项目(51475310);中国工程物理研究院创新发展基金资助项目(K1173-1921-TCF);四川省科技厅应用基础项目(2018JY0620)

Abstract: In order to understand the effects of diamond coating on the milling performances of carbide micro-milling cutters with diameter of 50 μm, the micro-groove milling experiments of diamond coated and uncoated tools were carried out. Firstly, the D-shaped micro-milling cutter with diameter of 50 μm was prepared by using WEDG. Then, the micro-groove milling process experiments were carried out on pure copper workpieces with diamond coated and uncoated tools; Changes of the surface morphology and roughness of micro-grooves with milling distance were observed by white-light interferometer and ultra-depth-of-field microscope, and the effects of diamond coating on the milling processes of cemented carbide micro-milling cutters were analyzed. The results show that the micro-groove processed with diamond coating tools has less burr, the surface roughness value is twice lower than that milled with uncoated tools, and stable groove width, roughness value and side morphology may maintain within a certain distance.

Key words: diamond coating, D-shaped micro-milling cutter, wire electro-discharge grinding(WEDG), surface morphology

摘要: 为了掌握金刚石涂层对其铣削性能的影响,针对直径为50 μm级的硬质合金微铣刀,进行了金刚石涂层与未涂层硬质合金微铣刀具微槽铣削试验。通过使用线电极电火花磨削技术制备出直径为50 μm级的D形微铣刀,采用金刚石涂层和未涂层刀具在纯铜工件上开展微槽铣削工艺试验;使用白光干涉仪、超景深显微镜等仪器来观测微槽表面形貌、粗糙度等随铣削距离变化的规律,分析金刚石涂层对硬质合金微铣刀铣削加工质量的影响。结果表明:采用金刚石涂层刀具加工的微槽具有较少的毛刺,表面粗糙度值约为未涂层刀具铣削的粗糙度值的1/2,并且能够在一定距离内保持稳定的槽宽、粗糙度值和侧面形貌。

关键词: 金刚石涂层, D形微铣刀, 线电极电火花磨削, 表面形貌

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