一种整体壁板口框结构预弯应力精准施加装置及方法
By precisely controlling the pre-bending stress of the integral wall panel frame structure through the pre-bending punch and die device, the structural instability and deformation problems caused by inaccurate pre-bending stress in the existing technology are solved, thereby improving the shot peening forming accuracy and production efficiency of large aluminum alloy integral wall panels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AVIC XIAN AIRCRAFT IND GRP CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology for shot peening forming of large aluminum alloy integral wall panels, it is difficult to accurately apply the pre-bending stress in the frame structure area, which leads to structural instability and deformation, affecting forming accuracy and production efficiency.
A pre-bending punch and a pre-bending die device are used, which are fixed to the wall panel frame structure by fasteners to apply pre-bending stress. The pre-bending deformation is precisely controlled by combining three-dimensional modeling and finite element simulation calculation. The fitting surface of the pre-bending punch shim and the die shim with the wall panel is designed.
It enables precise application of pre-bending stress to the overall wall panel frame structure, suppresses abrupt changes in structural stiffness and instability, improves the accuracy and production efficiency of shot peening, and reduces the workload of subsequent alignment.
Smart Images
Figure CN120791657B_ABST
Abstract
Citation Information
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