This study compares the electrically assisted pressure joining (EAPJ) performances of two non-ferrous alloys, aluminum (Al) 6061-T6 and copper (Cu) C11000. For joining, two cylindrical specimens with identical geometries are assembled in a longitudinal direction. Electric currents with various electric current densities are applied directly to the specimen assemblies during continuous axial plastic deformation. Microstructural analysis confirms that the joints are successfully fabricated without melting and solidification in both material combinations. While the mechanical properties of the joints are strongly affected by the electric current density, the results also show that both joining temperature and amount of plastic deformation for successful EAPJ of the C11000 alloy are much lower than those of the Al 6061-T6 alloy. In EAPJ, the Cu C11000 even can be joined at a temperature (250 °C) lower than the 0.3–0.7T_m range (T_m: the melting temperature of material), while the Al 6061-T6 requires the joining temperature (450 °C), which is about 0.7T_m for that material. The present study confirms that the process parameters for successful EAPJ can strongly differ depending on the metal alloy.

本研究比较了两种有色合金铝 (Al) 6061-T6 和铜 (Cu) C11000 的电辅助压力连接 (EAPJ) 性能。为了连接，两个具有相同几何形状的圆柱形样本沿纵向组装。在连续轴向塑性变形过程中，将具有不同电流密度的电流直接施加到样品组件上。微观结构分析证实，两种材料组合均成功制造了接头，没有熔化和凝固。虽然接头的机械性能受到电流密度的强烈影响，但结果还表明，C11000 合金成功 EAPJ 的连接温度和塑性变形量均远低于 Al 6061-T6 合金。在EAPJ中，Cu C11000甚至可以在低于0.3-0.7T _m范围（T _m：材料的熔化温度）的温度（250 °C）下接合，而Al 6061-T6则需要接合温度（450 °C）。 °C)，对于该材料来说约为 0.7T _m 。目前的研究证实，成功的 EAPJ 工艺参数可能因金属合金的不同而有很大差异。