研究了不同翻边板料尺寸条件下铝合金曲边包边及曲面包边的成形质量，确定了在不同曲率半径下翻边板料尺寸的取值极限，得到其对应的翻边长度及包边宽度的设计值范围，并据此标准设计和加工了一个包边特征件.实验结果表明，所提出的相关设计参数取值合理，所设计的包边特征件能够达到较好的包边效果.
Through simulation experiments on hemming qualities for curved surface hemming and curved edge hemming under different flanging sheet sizes, limit values of flanging sheet size are decided for different curvature radius. The values of corresponding flanging length and hemming width are given then. A hemming feature panel is designed based on the standards. The experiment results demonstrate that, the values of designed parameters are reasonable and the feature panel obtains favourable hemming effect.
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