In order to increase the cross-tension to the tensile-shear peak load ratio, aluminum clad steel sheet produced by roll bonding, was used for resistance spot welding to Al-Mg aluminum alloy. The results showed that the weld nugget formed between the aluminum clad layer and Al-Mg base sheet was the load bearing area. Presence of the metallurgical bond between the steel sheet and the aluminum clad layer led to the formation of the Al/Fe intermetallic compound with the thickness less than ∼3.5 μm. This narrow intermetallic layer did not play a detrimental role in the weld strength and therefore, the cross-tension to the tensile-shear peak load ratio reached up to ∼0.5 at the maximum tensile-shear peak load which was an advance compared to the results in the literature. Theoretical analysis was relatively successful for prediction of the critical nugget diameter and the tensile-shear peak failure loads. While the tensile-shear peak load increased with the welding current up to ∼4 kN, the peak load in the cross-tension test remained relatively constant at ∼2 kN.

为了增加相对于拉伸剪切峰负荷比的横向张力，将通过辊压接合而制造的铝复合钢板用于对Al-Mg铝合金的电阻点焊。结果表明，在铝包覆层与Al-Mg基片之间形成的熔核是承重区域。钢板和铝覆层之间存在冶金结合，导致形成厚度小于〜3.5μm的Al / Fe金属间化合物。这种狭窄的金属间层对焊接强度没有不利影响，因此，在最大拉伸剪切峰值负荷下，与剪切剪切峰值负荷之比的横向张力达到〜0.5。在文学中。理论分析相对成功地预测了临界熔核直径和拉伸剪切峰值破坏载荷。当拉伸剪切峰值载荷随焊接电流增加到约4 kN而增加时，在交叉拉伸试验中的峰值载荷保持相对恒定在约2 kN。