Effect of Surface Strengthening on Fatigue Property of Thin Wall Hollow Structures

DENG Ying; SHAO Jie; GAI Pengtao; ZHANG Jie

doi:10.16080/j.issn1671-833x.2018.04.078

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Effect of Surface Strengthening on Fatigue Property of Thin Wall Hollow Structures

更新时间：2025-10-30

- Effect of Surface Strengthening on Fatigue Property of Thin Wall Hollow Structures
- Aeronautical Manufacturing Technology Vol. 61, Issue 4, Pages: 78-81(2018)
- 作者机构：
  
  1. 中国航空制造技术研究院,北京,100024
  2. 塑性成形技术航空科技重点实验室,北京,100024
  3. 数字化塑性成形技术及装备北京市重点实验室,北京,100024
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2018.04.078
  CLC：
- Published：2018
- 稿件说明：
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邓瑛, 邵杰, 盖鹏涛, 张杰. 表面强化对薄壁空心结构疲劳性能影响研究[J]. 航空制造技术, 2018, 61(4): 78-81.

DENG Ying, SHAO Jie, GAI Pengtao, ZHANG Jie. Effect of Surface Strengthening on Fatigue Property of Thin Wall Hollow Structures[J]. Aeronautical Manufacturing Technology, 2018, 61(4): 78-81.
邓瑛, 邵杰, 盖鹏涛, 张杰. 表面强化对薄壁空心结构疲劳性能影响研究[J]. 航空制造技术, 2018, 61(4): 78-81. DOI： 10.16080/j.issn1671-833x.2018.04.078.

DENG Ying, SHAO Jie, GAI Pengtao, ZHANG Jie. Effect of Surface Strengthening on Fatigue Property of Thin Wall Hollow Structures[J]. Aeronautical Manufacturing Technology, 2018, 61(4): 78-81. DOI： 10.16080/j.issn1671-833x.2018.04.078.

摘要

制备了具有真实零部件几何特征的试验件，采用干喷丸、湿喷丸方法完成薄壁空心试验件表面强化并开展振动疲劳对比试验。试验结果表明：未采用表面强化处理的试件疲劳寿命最短；干喷强化试件寿命居中，且相同试验条件下干喷强化试件寿命是前者的10.4 倍；湿喷丸试件寿命最长，是相同条件下干喷强化试件寿命的3.3 倍以上。该研究成果对优化薄壁空心结构表面强化工艺及参数具有重要意义。

Abstract

Hollow structure specimens which represent the similar topology of components are produced

and dry blast and wet blast are used to strengthen the surface. Then

fatigue tests are carried out. The experimental results show that the fatigue property of polished specimen is the lowest

and specimen by the dry blast process is higher and the fatigue life is as 10.4 times as that of polished specimen. The experimental results also show that the fatigue property of specimen by wet blast processed is the highest

and the fatigue life is at least as 3.3 times as that of specimen by dry blast processed. This conclusion can be useful to improve shot peening parameters.

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