| ZHANG Qunli,LI Guochang,DONG Haopeng,SHEN Peng,CHEN Zhijun,WU Guolong,REN Deyu,YAO Jianhua.Stress and Deformation of 42CrMo Steel during Laser-Electromagnetic Induction Hybrid Quenching Process[J],53(21):142-152 |
| Stress and Deformation of 42CrMo Steel during Laser-Electromagnetic Induction Hybrid Quenching Process |
| Received:November 07, 2023 Revised:April 12, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.21.015 |
| KeyWord:42CrMo steel laser-electromagnetic induction hybrid quenching stress deformation simulation |
| Author | Institution |
| ZHANG Qunli |
College of Mechanical Engineering,Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China;Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education and Zhejiang Province, Hangzhou , China;Zhejiang Provincial Innovation Center of Laser Intelligent Equipment Technology, Zhejiang Wenzhou , China |
| LI Guochang |
College of Mechanical Engineering,Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China;Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education and Zhejiang Province, Hangzhou , China |
| DONG Haopeng |
College of Mechanical Engineering,Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China;Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education and Zhejiang Province, Hangzhou , China |
| SHEN Peng |
College of Mechanical Engineering,Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China;Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education and Zhejiang Province, Hangzhou , China |
| CHEN Zhijun |
College of Mechanical Engineering,Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China;Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education and Zhejiang Province, Hangzhou , China;Zhejiang Provincial Innovation Center of Laser Intelligent Equipment Technology, Zhejiang Wenzhou , China |
| WU Guolong |
College of Mechanical Engineering,Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China;Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education and Zhejiang Province, Hangzhou , China;Zhejiang Provincial Innovation Center of Laser Intelligent Equipment Technology, Zhejiang Wenzhou , China |
| REN Deyu |
Zhejiang Tianma Bearing Group Co., Ltd., Zhejiang Deqing , China |
| YAO Jianhua |
College of Mechanical Engineering,Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China;Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education and Zhejiang Province, Hangzhou , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The development potential of the new energy market is enormous, and the prospects for wind turbines are even broader. As key components of wind turbines, wind turbine bearings have extremely high requirements for the performance of bearings because of their inconvenient lifting and replacement process. However, under the long-term complex and heavy-load working conditions, wind turbine bearings are very likely to failure, requiring surface strengthening to improve their performances. In order to improve the dimensional stability of laser strengthened wind turbine bearings, the stress evolution process during laser-induction hybrid quenching was analyzed and the influence of different process parameters on quenching deformation was explored in this article. A mathematical model for laser-induction hybrid quenching of 42CrMo steel was established using COMSOL software by considering factors such as laser-induction hybrid quenching process, material parameters, heat source input, and boundary conditions. Solid heat transfer, metal phase change, and solid heat transfer modules were added to the software to study temperature, microstructure, and stress changes during the quenching process, and hybrid quenching experiments were conducted to verify them. The experimental results were conducted to temperature testing, quenching layer depth testing, and stress testing. The test results and simulation results were compared and analyzed to verify the correctness of the model. By improving the model, a model of bearing components was established, and the effects of relevant process parameters such as laser power, induction power, and scanning speed on bearing quenching deformation were studied. The results were compared with actual bearing test results. By comparing the experimental test results with the model results, it was found that the relative errors of induction temperature and laser temperature were 5.48% and 9.69%, respectively. The relative error of the depth of the hardened layer was 5.66%, and the relative error of the stress at the center point of the workpiece was 7.14%. It could be considered that the established model could better reflect the temperature changes, microstructure phase transformation changes, and stress changes during the laser-induction hybrid quenching process. By combining the temperature change results calculated by the model with the change results of tissue transformation, the stress change process was divided into four stages according to the stress change law:induction heating stage, laser heating stage, free cooling stage and forced water cooling stage. The dominant role of thermal stress and tissue transformation stress was different in each stage. The relative average error between the surface deformation of the improved bearing model and the experimental results was 0.58%. The laser-induction hybrid quenching model established in this article was experimentally verified to have certain accuracy. Through model calculations in combination with changes in temperature and microstructure, the quenching stress change process was explained. In the process of hybrid quenching, stress is simultaneously affected by thermal stress and microstructure stress, and the main body of thermal stress and microstructure transformation stress at each stage is different. As the laser power and induction power decrease, as well as the scanning speed increases, the normal displacement of the outer raceway surface of the bearing inner ring decreases, and the dimensional stability is improved. |
| Close |
|
|
|