使用热模拟试验机对热镀锌钢板和6061铝合金板的压力焊接试验进行模拟，研究了焊接温度(390~490℃)对接头组织和拉伸性能的影响，分析了不同焊接温度下接头界面层的微区成分.结果表明：随着焊接温度升高，界面层中的铝锌二元化合物逐渐减少，铁铝金属间化合物逐渐生成，接头的剪切力先减小后增大；当焊接温度为390℃时，界面层主要由铝锌二元化合物组成，接头的剪切力最大，为6．45 kN；当焊接温度为430℃时，接头的剪切力最小，为4．39 kN；焊接温度超过430℃后，界面层中的铝锌二元化合物完全消失，主要为铁铝金属间化合物，接头的剪切力又开始增大.
The pressure welding of hot dip galvanized steel sheet and 6061 aluminum sheet was simulated by using thermal simulation machine.The effects of welding temperature(390-490 ℃)on microstructure and tensile properties of the joint were researched;And the composition of interface layer at different welding temperature was analyzed.The results show that the Al-Zn binary compound gradually decreased and Fe-Al intermetallic compound gradually generated in the interface layer and shear force of the joint first decreased and then increased with the increase of welding temperature.When welding temperature was 390 ℃,the interface layer consisted of Al-Zn binary compound,and the joint owned the maximum shear force of 6.45 kN.The shear force decreased to the minimum value which was 4.39 kN at the welding temperature of 430 ℃.When the temperature was above 430 ℃, Al-Zn binary compound in the interface layer disappeared completely,the interface layer was mainly composed of Fe-Al intermetallic compounds,and the shear force of the joint increased again.
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