Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (7): 955-961.DOI: 10.12068/j.issn.1005-3026.2020.07.008

• Mechanical Engineering • Previous Articles     Next Articles

Tool Wear Mechanism and Theoretical Model of Zirconia Ceramic Turning

MA Lian-jie1,2, ZUO Yu-chen1, WANG Xin1, YANG Deng-feng2   

  1. 1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China; 2. School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China.
  • Received:2019-11-12 Revised:2019-11-12 Online:2020-07-15 Published:2020-07-15
  • Contact: MA Lian-jie
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Abstract: Through the experiment of YG6 tool turning zirconia with different tool geometric parameters, the theoretical model of tool volume wear was studied in engineering ceramic turning. Starting from strength theory and the essence of tool wear material migration, tool wear scale was extended from two-dimensional wear to three-dimensional wear. Based on the adhesion effect mechanism, the tool wear mechanism of zirconia ceramic turning was studied. Based on mechanical analysis, and adopting the method of layer by layer integration, the relationship between the tool geometric parameters and the flank wear area was synthesized, and the theoretical model of tool volume wear was established. Verification experiment results showed that tool volume wear decreases firstly and increases afterward with the increase of the rake angle and back angle, and decreases with the increase of the corner radius. The theoretical value of tool volume wear is consistent with the experimental results, and the average relative error is 4%~15%, which indicates that the model has high reliability.

Key words: adhesion effect, tool wear, zirconia ceramic, theoretical model, turning

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