表面强化对薄壁空心结构疲劳性能影响研究

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

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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。

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	邓瑛1
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	邵杰1
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	盖鹏涛1
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	张杰1

关键词 ：钛合金, 空心结构, 疲劳性能, 喷丸, 表面强化

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.

Key words： Titanium alloy Hollow structure Fatigue property Shot peening Surface strengthening

引用本文:

邓瑛1,2,3, 邵杰1,2,3, 盖鹏涛1,2,3, 张杰1. 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 Ying1,2,3, SHAO Jie1,2,3, GAI Pengtao1,2,3, ZHANG Jie1. Effect of Surface Strengthening on Fatigue Property of Thin Wall Hollow Structures. Aeronautical Manufacturing Technology, 2018, 61(4): 78-81.

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http://www.amte.net.cn/CN/10.16080/j.issn1671-833x.2018.04.078 或 http://www.amte.net.cn/CN/Y2018/V61/I4/78