Numerical simulation and experimental investigation of coaxiality change of laser cladding rotor shaft

Shirui Guo, Junhao Yu, Lujun Cui, Yinghao Cui, Yanlong Cao, Wenhan Zeng, Yang Zhao

Research output: Contribution to journalArticlepeer-review

Abstract

To study the change of coaxiality of rotor shaft during laser cladding, a numerical simulation of the rotor shaft was carried out by ANSYS Workbench, and the temperature field and structure field of the rotor shaft were simulated and analyzed by indirect coupling of transient temperature field and transient structure field. The temperature distribution of the rotor shaft during laser cladding was obtained from the results of the temperature field. The maximum temperature is 2350°C, and the final temperature converges to about 2100°C. Then, the results obtained from the temperature field are entered into the structure field as loads, and the change of coaxiality of rotor shaft during laser cladding is obtained. Finally, the laser is used to clad Fe60 powder on the 45 steel rotor shaft, and the coaxiality of the rotor shaft after cladding is measured by Taylor cylindricity meter. The measurement results are basically consistent with the simulation results, and the error is <10 %. It lays a good foundation for exploring the cladding mode or track that can maintain better coaxiality of rotor shaft in the process of laser cladding and is of great significance for the repair of damaged rotor shaft.

Original languageEnglish
Article number124106
Number of pages12
JournalOptical Engineering
Volume60
Issue number12
Early online date14 Dec 2021
DOIs
Publication statusPublished - 14 Dec 2021
Externally publishedYes

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