不同精加工齿面的电子束处理齿轮弯曲疲劳性能

中国机械工程 ›› 2013, Vol. 24 ›› Issue (3): 380-385.

不同精加工齿面的电子束处理齿轮弯曲疲劳性能

胡建军1,2;张根保1;许洪斌3;李小波2

1.重庆大学,重庆,400044
2.重庆理工大学,重庆,400054
3.汽车零部件制造及检测技术教育部重点实验室,重庆,400054

出版日期:2013-02-10 发布日期:2013-02-27
基金资助:
国家自然科学基金资助项目（51275548）
National Natural Science Foundation of China（No. 51275548）

#br# Gear Bending Fatigue Strength with Pulsed Electron Beam on Different Finished Surfaces

Hu Jianjun1,2;Zhang Genbao1;Xu Hongbin3;Li Xiaobo2

1.Chongqing University,Chongqing,400044
2.Chongqing University of Technology,Chongqing,400054
3.Key Laboratory of Manufacture and Test Techniques for Automobile Parts,Ministry of Education,Chongqing,400054

Online:2013-02-10 Published:2013-02-27
Supported by:
National Natural Science Foundation of China（No. 51275548）

摘要/Abstract

摘要：


对不同工艺齿面下齿轮进行强流脉冲电子束强化处理,实验研究其弯曲疲劳性能,并对齿轮电子束处理前后的齿面硬度、表面粗糙度、齿根表面形貌及组织和表面应力进行对比,分析不同工艺齿面下电子束处理对齿轮弯曲疲劳性能的影响。实验结果证明,在恒幅载荷条件下,未磨削齿轮在经电子束处理后在可靠度50%下弯曲疲劳极限降低了14%,磨削齿轮经电子束处理后弯曲疲劳极限提高了6.1%。齿轮的表面工艺对弯曲疲劳强度影响较大,经过磨削工艺,原始齿轮和电子束处理的齿轮强度分别增加了52.2%和88.2%。
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关键词: 齿面, 电子束, 弯曲疲劳, 实验研究

Abstract:

A gear with different finished surfaces was dealt with pulsed electron beam.Experiments of gear bending fatigue strength were complished and contrasted before and after they were dealt with pulsed electron beam for ground tooth surfaces.The microhardness,roughness,topography,organization structure and stress on gear surfaces were measured and their effects on gear bending fatigue strength were analysed and discussed.Experimental results demonstrate that bending fatigue strength of gear with grinding after irradiation is improved 6.1% than that before irradiation in reliability 50%,while that of without grinding is reduced 14% after irradiation than before irradiation in reliability 50%.The bending fatigue properties of gere are influenced greatly by surface processing technology.The ground gear bending fatigue strength of original and electron beam treated are improved 52.2% and 88.2% respectively.

Key words: tooth surface, pulsed electron beam, bending fatigue, experimental study

中图分类号:

胡建军1, 2, 张根保1, 许洪斌3, 李小波2. 不同精加工齿面的电子束处理齿轮弯曲疲劳性能[J]. 中国机械工程, 2013, 24(3): 380-385.

HU Jian-Jun-1, 2, ZHANG Gen-Bao-1, HU Hong-Bin-3, LI Xiao-Bei-2. #br# Gear Bending Fatigue Strength with Pulsed Electron Beam on Different Finished Surfaces[J]. China Mechanical Engineering, 2013, 24(3): 380-385.

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