Research on the friction and wear performance of remanufactured shaft parts of failed machine tools

Abstract

In this paper, the shaft parts of failed machine tools were treated by laser cladding, and the shaft surface of 45# steel matrix was repaired. The microstructure, hardness and corrosion resistance of the cladding layer and quenched phase transformation zone were analyzed by metallographic microscope, Vickers microhardness tester, and friction and wear tester. The laser cladding layer was tested by friction and wear tester. The results showed that the friction coefficient of laser cladding layer was only 0.58, and it fluctuated slightly. The corrosion resistance of laser cladding layer was obviously increased.

Keywords:

• Laser cladding
• shaft parts
• remanufacturing
• friction and wear performance
• wear resistance

Acknowledgments

Sincere thanks to the Team of Shaanxi Intelligent Remanufacturing Technology for its support. This work was supported by the General Project in the Industrial Field of Shaanxi Province, Project Number: 2020GY-193. Thanks for the supports of the Youth Innovation Team of Shaanxi Universities. This work was supported by Xi'an Science and Technology Bureau Project, Project Number: 21XJZZ0063.