板材滚弯成型方法及板材滚弯成型装置
By optimizing the sheet metal roll forming method, including sheet segment division, stress neutral layer curvature control, and pressure adjustment, the problems of low curvature accuracy and deformation in sheet metal roll forming have been solved, achieving efficient production and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI AIRCRAFT MFG
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing sheet metal roll forming methods suffer from an unreasonable ratio of tensile and compressive stresses within the thin-walled structure, resulting in low curvature accuracy, easy deformation, and significant difficulty in subsequent correction.
By dividing the sheet metal into multiple segments along its length, the number of rolling bends and the amount of pressure are determined based on the material type, sheet thickness, and target radius of curvature. The radius of curvature of the stress neutral layer is adjusted, and the weighting coefficient of the amount of pressure is optimized to ensure the accuracy of the amount of pressure during each rolling bend. Finally, thinning is performed according to the accuracy requirements.
It improves the curvature accuracy of sheet metal roll forming, reduces the need for subsequent correction, increases production efficiency, and reduces production costs.
Smart Images
Figure CN120790661B_ABST