激光冲击强化齿轮残余应力的研究综述
A Review of The Research on Laser Shock Strengthening of Gear Residual Stress
王振 1崔义龙 1孙浩 1侯海峰 2王国浩2
作者信息
- 1. 郑州航空工业管理学院航空宇航学院,河南郑州 450046
- 2. 河南航天液压气动技术有限公司,河南郑州 451191
- 折叠
摘要
激光冲击强化技术是一种非接触、可控性强、强化效果突出的新型表面改性技术,利用激光冲击强化技术调控齿轮表层分布的残余应力场,对于提高齿轮的使用寿命具有重要意义.基于激光冲击强化齿轮表层残余应力作用机理,讨论分析激光能量、激光光斑直径、激光光斑搭接率以及激光冲击次数等4个工艺参数对齿轮残余应力的影响,归纳现有激光冲击强化复合技术的优势与不足,综述激光冲击-喷丸、激光淬火-激光冲击、超声冲击-激光冲击、脉冲电流辅助激光冲击等4种技术对残余应力的调控作用,最后对激光冲击技术强化齿轮表层残余应力研究进行总结,并对激光冲击发展应用进行展望.
Abstract
Laser shock strengthening,a non-contact method with superior control and enhancement effects,offers innovative modifications to gear surfaces.By manipulating the residual stress field spread over the gear surface,this technology signifi-cantly improves gear lifespan.This study delves into the impact of laser shock strengthening on gear surface's residual stress,exploring four crucial process parameters:laser energy,laser spot size,laser spot bonding rate,and laser shock frequency.It provides an in-depth discussion of their influence on gear's residual stress while reviewing the merits and demerits of composite laser shock strengthening techniques currently available.The regulatory impacts of combined methods such as laser shock strengthening-shot peening,laser quenching-laser shock strengthening,ultrasonic impact peening-laser shock strengthening,and electropulsing-assisted laser shock strengthening on residual stress are also assessed.In conclusion,it summarizes research advancements concerning gear surface residual stress reinforcement by laser shock technology and forecasts future developments and applications of laser shock.
关键词
激光冲击/齿轮残余应力/激光工艺参数/复合强化Key words
laser shock/gear residual stress/laser process parameters/compound strengthening引用本文复制引用
基金项目
国家自然科学基金(51705471)
河南省高校重点科研项目(21A460026)
出版年
2024
NETL
NSTL
万方数据