ABSTRACT Magnetic pulse welding (MPW) provides an efficient route to join overlapping metallic tubes by the application of a high magnitude electromagnetic (EM) force. The process is rapidly transient in nature with little scope to comprehend and monitor the evolution of the joint by experimental means. A comprehensive computational process model is presented here to analyse the transient nature of EM field and force, and resulting impact and plastic deformation during MPW of metallic tubes. The computed results are validated with the corresponding experimentally measured weld joint length for specific tube joint geometries. The computed values of the plastic deformation, impact angle and impact velocity along the joint interface are examined further to realise the progressive nature of the joint formation.

中文翻译：

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金属管的磁脉冲焊接——实验研究和数值模拟

摘要 磁脉冲焊接 (MPW) 提供了一种通过施加高强度电磁 (EM) 力来连接重叠金属管的有效途径。该过程在本质上是快速瞬态的，几乎无法通过实验手段来理解和监测关节的演变。这里提出了一个综合的计算过程模型，用于分析 EM 场和力的瞬态特性，以及金属管 MPW 过程中产生的冲击和塑性变形。计算结果通过特定管接头几何形状的相应实验测量焊接接头长度进行验证。进一步检查沿接头界面的塑性变形、冲击角和冲击速度的计算值，以实现接头形成的渐进性质。