Influence of multi-point laser shock peening process on surficial mechanical properties in gear steels
For the gears of aero-engine accessory system，the complex working environment requires high fatigue resistance and wear resistance on the gear surface. Laser shock peening technology introduces residual compressive stress and high micro-hardness by severe plastic deformation on the material surface....
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Aeronautical Materials
2025-02-01
|
| Series: | Journal of Aeronautical Materials |
| Subjects: | |
| Online Access: | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000212 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823856469355790336 |
|---|---|
| author | XUE Cheng LEI Duncai YAN Xueyuan ZANG Shunlai DONG Hongtao YOU Zhiwei |
| author_facet | XUE Cheng LEI Duncai YAN Xueyuan ZANG Shunlai DONG Hongtao YOU Zhiwei |
| author_sort | XUE Cheng |
| collection | DOAJ |
| description | For the gears of aero-engine accessory system，the complex working environment requires high fatigue resistance and wear resistance on the gear surface. Laser shock peening technology introduces residual compressive stress and high micro-hardness by severe plastic deformation on the material surface. A more uniform residual stress field and hardness distribution are crucial to improve the fatigue life and wear resistance of the parts. Thus，it is an important topic to investigate how to obtain a uniform residual stress field and hardness distribution by optimizing the technical parameters of laser shock peening. In this paper，a four-layer overlapping laser shock peening path scheme is proposed，and the spatial distribution characteristics of residual stress and micro-hardness after laser shock peening are analyzed by the finite element numerical simulation and experiment. Using finite element numerical simulation method，the spatial homogeneous distribution of the residual stress field after the multi-point laser shock peening is studied. The effects of laser energy and impact times on the residual stress and micro-hardness of gear steel are experimentally investigated. The results show that the proposed four-layer overlapping laser shock peening path scheme can obtain a more uniform surface residual compressive stress field. With the increase of laser energy and impact times，the surface residual stress and micro-hardness also increase，but the increase magnitude will decrease，showing a certain saturation trend. |
| format | Article |
| id | doaj-art-efa8d435e92c498da5651015bb63d616 |
| institution | Kabale University |
| issn | 1005-5053 |
| language | zho |
| publishDate | 2025-02-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj-art-efa8d435e92c498da5651015bb63d6162025-02-12T09:22:41ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50532025-02-01451626910.11868/j.issn.1005-5053.2023.000212a2023-0212Influence of multi-point laser shock peening process on surficial mechanical properties in gear steelsXUE Cheng0LEI Duncai1YAN Xueyuan2ZANG Shunlai3DONG Hongtao4YOU Zhiwei5Mechanical Systems Research Department，AECC Hunan Aviation Powerplant Research Institute，Zhuzhou 412000，Hunan，ChinaMechanical Systems Research Department，AECC Hunan Aviation Powerplant Research Institute，Zhuzhou 412000，Hunan，ChinaSchool of Mechanical Engineering，Xi’an Jiaotong University，Xi’an 710049，ChinaSchool of Mechanical Engineering，Xi’an Jiaotong University，Xi’an 710049，ChinaMechanical Systems Research Department，AECC Hunan Aviation Powerplant Research Institute，Zhuzhou 412000，Hunan，ChinaMechanical Systems Research Department，AECC Hunan Aviation Powerplant Research Institute，Zhuzhou 412000，Hunan，ChinaFor the gears of aero-engine accessory system，the complex working environment requires high fatigue resistance and wear resistance on the gear surface. Laser shock peening technology introduces residual compressive stress and high micro-hardness by severe plastic deformation on the material surface. A more uniform residual stress field and hardness distribution are crucial to improve the fatigue life and wear resistance of the parts. Thus，it is an important topic to investigate how to obtain a uniform residual stress field and hardness distribution by optimizing the technical parameters of laser shock peening. In this paper，a four-layer overlapping laser shock peening path scheme is proposed，and the spatial distribution characteristics of residual stress and micro-hardness after laser shock peening are analyzed by the finite element numerical simulation and experiment. Using finite element numerical simulation method，the spatial homogeneous distribution of the residual stress field after the multi-point laser shock peening is studied. The effects of laser energy and impact times on the residual stress and micro-hardness of gear steel are experimentally investigated. The results show that the proposed four-layer overlapping laser shock peening path scheme can obtain a more uniform surface residual compressive stress field. With the increase of laser energy and impact times，the surface residual stress and micro-hardness also increase，but the increase magnitude will decrease，showing a certain saturation trend.http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000212laser shock peeningfinite element methodresidual stressmulti-points shock |
| spellingShingle | XUE Cheng LEI Duncai YAN Xueyuan ZANG Shunlai DONG Hongtao YOU Zhiwei Influence of multi-point laser shock peening process on surficial mechanical properties in gear steels Journal of Aeronautical Materials laser shock peening finite element method residual stress multi-points shock |
| title | Influence of multi-point laser shock peening process on surficial mechanical properties in gear steels |
| title_full | Influence of multi-point laser shock peening process on surficial mechanical properties in gear steels |
| title_fullStr | Influence of multi-point laser shock peening process on surficial mechanical properties in gear steels |
| title_full_unstemmed | Influence of multi-point laser shock peening process on surficial mechanical properties in gear steels |
| title_short | Influence of multi-point laser shock peening process on surficial mechanical properties in gear steels |
| title_sort | influence of multi point laser shock peening process on surficial mechanical properties in gear steels |
| topic | laser shock peening finite element method residual stress multi-points shock |
| url | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000212 |
| work_keys_str_mv | AT xuecheng influenceofmultipointlasershockpeeningprocessonsurficialmechanicalpropertiesingearsteels AT leiduncai influenceofmultipointlasershockpeeningprocessonsurficialmechanicalpropertiesingearsteels AT yanxueyuan influenceofmultipointlasershockpeeningprocessonsurficialmechanicalpropertiesingearsteels AT zangshunlai influenceofmultipointlasershockpeeningprocessonsurficialmechanicalpropertiesingearsteels AT donghongtao influenceofmultipointlasershockpeeningprocessonsurficialmechanicalpropertiesingearsteels AT youzhiwei influenceofmultipointlasershockpeeningprocessonsurficialmechanicalpropertiesingearsteels |