航空齿轮钢表面完整性与滚动接触疲劳性能关联规律研究

doi:10.3901/JME.2024.04.284

摘要/Abstract

摘要： 齿轮接触疲劳是限制航空、航天、新能源汽车、舰艇等高端装备可靠性、长寿命、轻量化需求的重要瓶颈。抗疲劳制造是实现高表面完整性和服役性能的关键,揭示齿轮表面完整性与疲劳性能之间的关联规律成为工程及学术界的研究重点。讨论了常规喷丸、二次喷丸、微粒喷丸、滚磨光整、喷丸光整等加工工艺对AISI9310渗碳淬火航空齿轮钢表面完整性及滚动接触疲劳性能的影响,并给出抗接触疲劳主动设计方法。通过对不同制造工艺的试件开展滚动接触疲劳试验,揭示表面完整性与服役性能之间的关联规律。结果表明,2 500 MPa接触应力状态下,相对于磨削状态,二次喷丸、微粒喷丸、滚磨光整能使接触疲劳寿命分别提升75.7%、62.3%、117%;常规喷丸、喷丸光整加工工艺能使滚动疲劳极限分别达到2269MPa和2 553 MPa,相对于渗碳磨削状态分别提升2.9%和14.87%。

关键词: 二次喷丸, 微粒喷丸, 滚磨光整, 表面完整性, 疲劳寿命, 疲劳极限

Abstract: Gear rolling contact fatigue is an important bottleneck restricting the reliability, long life, and lightweight requirements of high-end equipment such as aviation, aerospace, new energy vehicles, and ships. Fatigue-resistant manufacturing is key to achieving high surface integrity and service performance. Revealing the relationship between high surface integrity, service life and fatigue limit has become a research focus in engineering and academia. The effects of conventional shot peening, dual shot peening, fine particle peening, barrel finishing, barrel finishing after shot peening, etc. on surface integrity and rolling contact fatigue properties of AISI 9310 carburized and quenched aviation gear steel are discussed. Active design method for contact fatigue resistance is proposed accordingly. This work is the second part of this series of studies, which aims to reveal the relationship between surface integrity and service performance by carrying out rolling contact fatigue tests with different manufacturing processes. The results show that under the contact stress state of 2 500 MPa, compared with the grinding state, the contact fatigue life could be increased by 75.7%, 62.3%and 117% respectively by the dual shot peening, fine particle peening and barrel finishing. The rolling fatigue limit of samples treated by shot peening and shot peening-barrel finishing could reach 2 269 MPa and 2 553 MPa, respectively, which is 2.9% and 14.87%higher than that of the carburized grinding state.

Key words: dual shot peening, fine particle peening, barrel finishing, surface integrity, fatigue life, fatigue limit

中图分类号:

TH132

吴吉展, 魏沛堂, 刘怀举, 吴少杰, 朱才朝. 航空齿轮钢表面完整性与滚动接触疲劳性能关联规律研究[J]. 机械工程学报, 2024, 60(4): 284-295.

WU Jizhan, WEI Peitang, LIU Huaiju, WU Shaojie, ZHU Caichao. Study on the Correlation between Surface Integrity and Rolling Contact Fatigue Performance of Aviation Gear Steel[J]. Journal of Mechanical Engineering, 2024, 60(4): 284-295.

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