| 基于回归分析的螺母凸焊工艺优化 |
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| 引用本文： | 邢晓芳,贲强,周勇,路浩,韩佩.基于回归分析的螺母凸焊工艺优化[J].焊接学报,2020,41(12):91-96. |
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| 作者姓名： | 邢晓芳 贲强 周勇 路浩 韩佩 |
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| 作者单位： | 1.西安石油大学，西安，710065 |
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| 摘 要： | 通过单因素试验对M6焊接方螺母和SAPH370酸洗热轧钢板进行了焊接，对所焊试样进行分离拉力试验，得出了不同焊接参数下的分离拉力. 基于Spss和Matlab软件对试验数据进行了回归处理，获得了以分离拉力为主要考察指标的焊接质量回归模型. 结果表明，焊接电流对分离拉力的影响最大，焊接时间和电极压力对分离拉力影响较小. 电极压力较小时，焊接时间对分离拉力影响较大；电极压力较大时，焊接电流对分离拉力影响较大. 电极压力和焊接电流的交互作用最大，焊接电流和焊接时间的交互作用以及电极压力和焊接时间的交互作用较小.
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| 关 键 词： | 螺母凸焊 SAPH370 分离拉力 回归模型 焊接质量 |
| 收稿时间： | 2020-04-13 |
Process optimization of projection welding of nut based on regression analysis |
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| Affiliation: | 1.Xi’an Shiyou University, Xi’an, 710065, China2.Chinese People’s Liberation Army No. 5720 Factory, Wuhu, 241000, China |
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| Abstract: | Single factor experimental design was used for M6 welded square nuts and SAPH370 pickled hot-rolled steel plates in order to optimize the nut welded joint quality. The electrode force, welding current and welding time were picked out as the process parameters and the Pull-out load were weighted into a welding quality index. The mathematical model between the welding quality index and process parameters was obtained by regression analysis. The research results show that the welding current has the greatest effect on the Pull-out load, and the welding time and electrode pressure have a small effect on the Pull-out load. When the electrode pressure is small, the welding time has a large effect on the Pull-out load. When the electrode pressure is large, the welding current has a large effect on the Pull-out load. The interaction effect between electrode pressure and welding current is the largest, the interaction effect between welding current and welding time and the interaction effect between electrode pressure and welding time are smaller. |
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