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首页> 外文期刊>Arabian Journal for Science and Engineering. Section A, Sciences >Evaluating the Electromagnetic Welding Parameters for Improving the Mechanical Properties of Al–Cu Joint
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Evaluating the Electromagnetic Welding Parameters for Improving the Mechanical Properties of Al–Cu Joint

机译：评估电磁焊接参数，用于改善Al-Cu关节的力学性能

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摘要

The aim of this study is to simultaneously improve ultimate tensile strength, elongation, weld length and hardness of Al–Cu welded sheets by optimizing the electromagnetic welding parameters such as voltage, standoff distance and distance between spacers. Finite element analysis was conducted for the electromagnetic welding of Al–Cu sheets, and the results were used to predict the formation of weld. The experimental tests were then executed by response surface methodology in order to extract the regression models for predicting the optimal values of the parameters. The assessment of the weld quality was performed by observation of the microstructure of weld interface using the optical and scanning electron microscopes. The mechanical properties of Al–Cu weld were improved simultaneously using the desirable values of parameters as validated by confirmation experiments. It was also observed from the weld microstructure that the most important potential sources for reducing the weld length and weld strength are the high thickness intermetallic layers with micro-cracks and the entrapped oxides in the weld interface.
机译：本研究的目的是通过优化电磁焊接参数如电压，支座距离和间隔件之间的距离，同时提高终极拉伸强度，伸长率，焊接长度和硬度。对Al-Cu板的电磁焊接进行有限元分析，结果用于预测焊缝的形成。然后通过响应表面方法执行实验测试，以便提取用于预测参数的最佳值的回归模型。通过使用光学和扫描电子显微镜观察焊接界面的微观结构来进行焊接质量的评估。使用通过确认实验验证的参数的理想值同时改善Al-Cu焊缝的机械性能。还从焊接微结构中观察到，用于减小焊接长度和焊接强度的最重要的电位来源是具有微裂缝和焊接界面中的夹带氧化物的高厚度金属间层。

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