In this work, an improved explosive welding technique was investigated to fabricate a thin Mg/Al plate, where an additional thin aluminum sheet was used as a buffer layer between the explosive and the Al plate, and the Mg plate was rigidly constrained by a steel plate to avoid excessive deformation. Moreover, the welding parameters were optimized using theoretical analysis and numerical simulation, and the interfacial behavior was simulated using the SPH method. The bonding properties of the achieved joints were investigated using microstructure observation and mechanical tests. It was concluded that this technique is an effective method for producing a thin Mg/Al composite plate. In both morphology observation and mechanical tests, an excellent bonding quality was confirmed. In addition, smoothed particle hydrodynamics (SPH) simulation revealed an extreme condition of local high temperature and plastic strain in the welding process, and the characteristic parameters of waves obtained using simulation are well congruous with the experiment.

中文翻译：

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改进的爆炸焊接技术制备AZ31B / AA5052复合薄板的实验与数值研究

在这项工作中，研究了一种改进的爆炸焊接技术，以制造薄的Mg / Al板，其中在炸药和Al板之间使用额外的薄铝板作为缓冲层，并且Mg板受到钢的刚性约束避免过度变形。此外，通过理论分析和数值模拟对焊接参数进行了优化，并使用SPH方法对界面行为进行了模拟。使用微观结构观察和机械测试研究了所获得接头的粘结性能。结论是该技术是生产薄的Mg / Al复合板的有效方法。在形态观察和机械测试中，均确认了优异的结合质量。此外，