喷丸成形铝合金曲板细节疲劳性能测试与评价

王锋; 曾元松; 胡国杰; 盖鹏涛; 尚建勤; 周文龙; 付雪松

doi:10.16080/j.issn1671-833x.2022.23/24.116

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喷丸成形铝合金曲板细节疲劳性能测试与评价

研究论文 | 更新时间：2025-10-30

- 喷丸成形铝合金曲板细节疲劳性能测试与评价
- 航空制造技术 2022年65卷第23/24期
- 作者机构：
  
  1. 航空工业第一飞机设计研究院,西安,710089
  2. 中国航空制造技术研究院,北京,100024
  3. 大连理工大学,大连,116024
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2022.23/24.116
  中图分类号：
- 纸质出版：2022
- 稿件说明：
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王锋，曾元松，胡国杰，盖鹏涛，尚建勤，周文龙，付雪松. 喷丸成形铝合金曲板细节疲劳性能测试与评价[J]. 航空制造技术, 2022, 65(23/24): 116-123. WANG Feng, ZENG Yuansong, HU Guojie, GAI Pengtao, SHANG Jianqin, ZHOU Wenlong, FU Xuesong. Evaluation of Detail Fatigue Properties of Curved Aluminum Alloy Parts Prepared by Shot Peen Forming[J]. Aeronautical Manufacturing Technology, 2022, 65(23/24): 116-123.

WANG Feng, ZENG Yuansong, HU Guojie, et al. Evaluation of Detail Fatigue Properties of Curved Aluminum Alloy Parts Prepared by Shot Peen Forming[J]. Aeronautical Manufacturing Technology, 2022, 65(23/24).
王锋，曾元松，胡国杰，盖鹏涛，尚建勤，周文龙，付雪松. 喷丸成形铝合金曲板细节疲劳性能测试与评价[J]. 航空制造技术, 2022, 65(23/24): 116-123. WANG Feng, ZENG Yuansong, HU Guojie, GAI Pengtao, SHANG Jianqin, ZHOU Wenlong, FU Xuesong. Evaluation of Detail Fatigue Properties of Curved Aluminum Alloy Parts Prepared by Shot Peen Forming[J]. Aeronautical Manufacturing Technology, 2022, 65(23/24): 116-123. DOI： 10.16080/j.issn1671-833x.2022.23/24.116.

WANG Feng, ZENG Yuansong, HU Guojie, et al. Evaluation of Detail Fatigue Properties of Curved Aluminum Alloy Parts Prepared by Shot Peen Forming[J]. Aeronautical Manufacturing Technology, 2022, 65(23/24). DOI： 10.16080/j.issn1671-833x.2022.23/24.116.

摘要

研究了铝合金壁板单面喷丸成形细节疲劳性能。针对喷丸成形后产生的翘曲效应，通过点云测绘建模、有限元仿真和电阻应变片监测等手段，分析曲面样件疲劳过程中局部承载应力应变特征，基于SWT 模型评价曲面试样细节疲劳性能。结果表明，在轴向加载180 MPa 名义应力条件下，平板试样板材峰值应力为263 MPa，曲面板材局部应力峰值接近400 MPa。原始态铝合金板细节疲劳性能截止值DFRcutoff 为184.6 MPa ；单面喷丸成形翘曲板材直接测量的DFRcutoff 为182.4 MPa，基于SWT 模型评估后DFRcutoff 为221.6 MPa。喷丸成形平板的（双面喷丸成形处理）DFRcutoff 为241.4 MPa，比SWT 模型评估值略高（误差小于10%），这是因为SWT 模型评估中没有考虑加工硬化效应。研究表明，WT 模型评估喷丸成形壁板曲面细节疲劳性能是一种较有效的评价方法。

Abstract

The detail fatigue property of aluminum alloy curved panel formed by unilateral shot peen forming was studied. As the shot peen formed panel with curved shape

the detail fatigue performance of curved surface sample was evaluated based on SWT model. The local load-bearing stress and strain characteristics on surface of sample during fatigue process were analyzed by means of point cloud mapping modeling

finite element simulation and resistance strain gauge monitoring. The results show that: under the same condition of axial loading 180 MPa nominal stress

the peak stress of flat plate is 263 MPa

and the local peak stress of curved plate is close to 400 MPa. The DFR cut-off value (DFRcutoff) of original flat plate is 184.6 MPa; The DFRcutoff of curved sheet formed by unilateral shot peening is 182.4 MPa by direct measurement

and is 221.6 MPa by SWT model evaluation. The DFRcutoff value of shot peening flat plate (bilateral shot peening) is 241.4 MPa

which is slightly higher than the SWT model evaluation value (error less than 10%)

because the work hardening effect is not considered in the SWT evaluation. Therefore

SWT model is an effective method to evaluate the detail fatigue performance of shot peened panel.

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