• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2021, Vol. 57 ›› Issue (13): 242-251.doi: 10.3901/JME.2021.13.242

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Performance Research on Bionic Tools Based on Surface Microstructures of Blood Clams in Dry Cutting of GH4169

LIAN Yunsong1, XIE Chaoping1, ZHOU Wei1, CHU Xuyang1, ZHAO Guolong2   

  1. 1. Department of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361102;
    2. Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
  • Received:2020-12-08 Revised:2021-05-18 Online:2021-07-05 Published:2021-08-31

Abstract: GH4169 has excellent anti-fatigue, anti-oxidation and corrosion resistance properties, so it is widely used in aerospace, nuclear energy, petroleum industry and other fields. However, the cutting characteristics such as large cutting force, high cutting temperature and severe tool bonding wear during the cutting process make it becomes a typical difficult-to-process material. In order to improve the harsh environment of cutting GH4169, utilize the anti-friction and wear-resistant properties of the surface microstructure of blood clams, it was applied to the tool-chip contact area of the tool rake face. And the bionic cutting tool was prepared by laser processing. Using cutting simulation to optimize the surface microstructure parameters of the bionic tool, three groups of bionic cutting tools and a group of ordinary tools were selected for dry cutting comparison tests. The research results showed that, compared with ordinary tools, the optimized bionic tools T8 and T20 can improve the cutting force, cutting temperature, adhesive wear and other aspects to a certain extent when dry cutting GH4169, while the improvement effect of the non-optimized bionic tool T25 was not significant.

Key words: bionic tool, dry cutting, microstructures, cutting performance, GH4169

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