• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

机械工程学报 ›› 2016, Vol. 52 ›› Issue (17): 78-85.doi: 10.3901/JME.2016.17.078

• 精密加工制造技术专栏 • 上一篇    下一篇

应用环形磁场控制的微粉砂轮制备及其磨削性能*

龚胜1, 王永强1，2, 尹韶辉1, 陈逢军1, 康仁科3, 叶冰1, 胡天4   

  1. 1. 湖南大学国家高效磨削工程技术研究中心 长沙 410082；
    2. 南华大学机械工程学院 衡阳 421001；
    3. 大连理工大学精密与特种加工教育部重点实验室 大连 116023；
    4. 长沙纳美特超精密制造技术有限公司 长沙 430100
  • 出版日期:2016-09-05 发布日期:2016-09-05
  • 作者简介:龚胜，男，1986年出生，博士研究生。主要研究方向为超精密磨削与磨具制造。

    E-mail：gshryl@126.com

    E-mail：rancher_wong@126.com

    尹韶辉(通信作者)，男，1967年出生，博士，教授，博士研究生导师。主要研究方向为超精密磨削与光学制造。

    E-mail：yinshaohui@hnu.edu.cn

  • 基金资助:
    * 国家自然科学基金(51205120)、国际科技合作与交流专项(2014DFG72480)和大连理工大学精密与特种加工教育部重点实验室开放基金资助项目; 20151011收到初稿，20160418收到修改稿;

Fabrication of Fine Grinding Wheel Controlled by Annular Magnetic Field and Its Grinding Performance

GONG Sheng1, WANG Yongqiang1，2, YIN Shaohui1, CHEN Fengjun1, KANG Renke, HU Tian4   

  1. 1. National Engineering Research Center for High Efficiency Grinding, Hunan University, Changsha 410082;
    2. School of Mechanical Engineering, University of South China, Hengyang 421001;
    3. Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116023;
    4. Changsha Nano-meter Ultra-precision Manufacturing Technology Ltd. Corp., Changsha 430100
  • Online:2016-09-05 Published:2016-09-05

摘要：

在超精密磨削中，金刚石微粉砂轮的磨粒分布均匀性对提高磨削表面质量至关重要，为了使微粉磨粒规则排布，提出了一种采用环形磁场控制磨粒规则排布的砂轮制备方法，制备了多种金刚石微粉砂轮，使用磁场控制制备的微粉砂轮对硬质合金YG8进行了平面及非球面磨削试验。结果表明：应用环形磁场控制可使金刚石微粉砂轮的磨粒实现规则排布，极大改善砂轮加工性能，利用环形磁控方法制备的砂轮可获得最佳表面粗糙度Ra3 nm、最佳面形精度PV318 nm的光滑镜面。

关键词: 环形磁场控制, 磨粒规则排布, 微粉砂轮, 超精密磨削

Abstract:

Grits distribution of fine grinding wheel is a crucial issue in ultra-precision grinding, which dramatically affects the quality of ground surface. To enable regular grits distribution, a fabrication method of fine grinding wheel based on annular magnetic field control is proposed in this work. Various types of fine grinding wheels are prepared. Planar and aspheric grinding tests are conducted on cemented carbide YG8 workpiece by using the fabricated grinding wheels. The results show that regular grits distribution may be realized under the control of annular magnetic field, which significantly improves the grinding performance of fine grinding wheels. A mirror surface with the best roughness value as 3 nm inRa and the best form accuracy as 314 nm in PV is obtained.

Key words: annular magnetic field control, fine grinding wheel, grits uniform distribution, ultra-precision grinding

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