大面积低能电子束对齿轮表面改性的应用分析  

Application Analysis of Gear Surface Modification with Large Area Low Energy Electron Beam

作　　者：胡建军[1,2] 邹毅[1] 侯天凤 

机构地区：[1]重庆理工大学材料科学与工程学院,重庆400054 [2]模具技术重庆市高校市级重点实验室,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2014年第7期35-38,共4页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51275548);重庆市自然科学基金重点资助项目(cstc2012jjB70002);重庆市高校创新团队基金资助项目

摘　　要：针对提高齿轮零件齿面性能的需求,提出了利用电子束进行齿轮齿面改性的思想。分析了电子束产生原理,讨论了大面积低能电子束材料表面改性的技术及特点。设计了专用夹具进行电子束齿轮表面改性,并进行了弯曲疲劳性能研究。实验结果表明:在恒幅载荷下,磨削齿面齿轮经电子束改性后弯曲疲劳强度提高了6.1%,利用大面积低能电子束技术对齿轮进行表面改性具有一定的应用前景。Based on the demand of improving the gear tooth surface performance,the academic think-ing of modifying gear tooth surface with electron beam was put forward.The principle of electron beam generating was analyzed and characteristics of large area and low energy electron beam surface modifi-cation were discussed.Special fixture was designed to carry on electron beam gear surface modifica-tion and research on bending fatigue performance.The experimental results show that gear bend fa-tigue strength increased by 6.1%surface modified with electron beam after the grinding tooth face un-der constant amplitude loading.So the large area and low energy electron beam technology has a cer-tain application prospect for gear surface modification.

关 键 词：电子束 齿轮 表面改性 弯曲性能 

分 类 号：TG668[金属学及工艺—金属切削加工及机床]