Magnetic pulse welding can be considered as an advanced joining technique because it does not require any shielding atmosphere and input heat similar to conventional welding techniques. However, it requires comprehensive evaluations for bonding dissimilar materials. In addition to processing parameters, the surface preparation of the components, such as target material, needs to be evaluated. Different surface conditions were tested (machined, sand-blasted, polished, lubricated, chemically attacked, and threaded) using a fixed gap and standoff distance for welding. Microstructural observations and tensile testing revealed that the weld quality is dependent on surface preparation. The formation of waviness microstructure and intermetallic compounds were verified at the interface of some joints. However, these conditions did not guarantee the strength.

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表面处理对电磁脉冲焊接Al-Cu接头界面的影响

电磁脉冲焊接可以被认为是一种先进的连接技术，因为它不需要任何类似于传统焊接技术的保护气氛和热量输入。但是，它需要对异种材料的粘合进行全面评估。除了工艺参数外，还需要评估组件（例如目标材料）的表面处理。使用固定的间隙和支座距离进行焊接，测试了不同的表面条件（机加工，喷砂，抛光，润滑，化学侵蚀和螺纹加工）。显微组织观察和拉伸测试表明，焊接质量取决于表面处理。在某些接头的界面处证实了波纹组织和金属间化合物的形成。然而，