基于正交试验的超声波喷丸成形工艺参数分析及弧高值预测

摘要

The paper studied the effects of pin velocity,pin diameter,distance of forming trajectory and the width of peening strip corresponding to UPF on the formed arc height of stiffened plate by the orthogonal test.The optimal combination of UPF technological parameters can be obtained.Based on above-mentioned data as the sample data,the multiple regression analysis mathenatical model was established.The accuracy of the mathematical model was proved by the sample.The experimental results agree well with the regression analysis data.The multiple regression analysis mathematical model can efficiently predict formed arc height in order to improve the efficiency of the process design.%针对带筋板的超声波喷丸成形,采用正交试验法研究了撞针速度、撞针直径、成形轨迹间距、喷丸区域宽度对带筋板超声波喷丸成形弧高值的影响,得出最佳参数组合方案,并以此作为样本数据,建立多元回归分析数学模型.通过实验验证模型的准确性,试验数据和回归分析数据相符较好,可以用回归分析的数学模型来预测喷丸弧高值,提高工艺设计效率.