4.7 Article

Tribological performance of hydrophobic and micro/nano triangle textured rake face of cutting tools

期刊

APPLIED SURFACE SCIENCE
卷 571, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.apsusc.2021.151250

关键词

Textured cutting tools; Tribological property; Hydrophobic surface; Wear mechanism

资金

  1. National Natural Science Foundation of China [51575234, 51872122]
  2. Postdoctoral Science Foundation of China [2017M620286]
  3. Key Research and Development Program of Shandong Province, China [2018CXGC0809]
  4. Major basic research projects of Shandong Natural Science Foundation [ZR2020ZD06]
  5. Project of Shandong Province Higher Educational Youth Innovation Science and Technology Program [2019KJB021]
  6. Experts from Taishan Scholars and Youth Innovation in Science & Technology Support Plan of Shandong Province University

向作者/读者索取更多资源

The use of femtosecond laser micro/nano-texturing and fluoridization on cutting tools improves their tribological performance and machining quality, enhancing anti-adhesion, anti-friction, and wear resistance capabilities.
In the process of metal cutting, the friction between the tool and the workpiece wears the tool seriously and degrades the surface quality of the workpiece. In order to reduce the friction coefficient, we micro/nano-textured the tool rake face triangularly with femtosecond laser and fluoridized it with fluorosilane. We evaluated the tribological performance of the tool rake face through friction and wear experiments as well as cutting experiments, in which textures with different wetting characteristics, depths and pattern arrangements are studied. Our experiment results and theory-based analysis show that the tribological performance and machining quality of the tool are improved due to the unidirectional convergent texture and hydrophobicity of the cutting tool. When the monopulse energy was 2.5 mu J and the scanning depth was 7 mu m, the micro/nano textured and fluoridized tool has the best anti-adhesion, antifriction and wear resistance performance, the hydrodynamic pressure effect is obvious. The tribological performance of cutting tools are also increased by the bearing capacity of film between friction pairs.

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