Study on the non-uniform contact during ELID groove grinding |
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| Affiliation: | 1. School of Mechanical Engineering, Tianjin University, 300072 Tianjin, China;2. College of Mechanical and Electrical Engineering, Henan Agricultural University, 450002 Zhengzhou, China;1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing 210016, China;1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. School of Aerospace, The University of Nottingham Ningbo China, Ningbo 315100, China;1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;2. Department of Aerospace Engineering, Iowa State University, Ames, IA 50010, USA |
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| Abstract: | This paper introduces the potential feasibility that ELID (electrolytic in-process dressing) grinding replaces superfinishing in bearing manufacturing, but ELID grinding will bring new challenges. Different regions present distinguish surface profile due to the non-uniform contact in ELID groove grinding. However, few reports explaining the non-uniform contact are available. This article explores the mechanisms of the non-uniform contact during ELID groove grinding. Experiments on the non-uniform contact between bearing raceway and grinding wheel have been carried out under different conditions. The results show that non-uniform contact exists in ELID groove grinding process and it exerts influence on the profile of the raceway surface. Non-uniform contact influences the Rsk and Rku value all the time, but it influences the Ra value occasionally. Improvement strategies of eliminating the non-uniform contact are also discussed based on the experimental study. |
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| Keywords: | ELID groove grinding Ball bearing raceway Non-uniform contact Interaction phenomenon Arc form accuracy |
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