• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2016, Vol. 52 ›› Issue (17): 78-85.doi: 10.3901/JME.2016.17.078

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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

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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