The galvanized steel with thickness of 2 mm was joined to 6061 with thickness of 2 mm by laser fusion-brazing process. The filler wire was AlSi₅ and wire feed speeds were 2.8, 3.0, and 3.2 m/min, respectively. Microstructure and mechanical properties of the joints were investigated. The Zn-rich zone formed in the area of the seam toe was analyzed by means of optical microscope, scanning electron microscope, and energy-dispersive spectroscopy. Meanwhile, the Fe₂Al₅Zn_0.4phase、Fe(Al,Si)_0.5 phase, and Fe(Al,Si)_0.7 phase were found at the galvanized steel/brazed metal interface along the weld seam. According to tensile test, the strength of the joints was 31.6 MPa (wire feed speed is 2.8 m/min), 61.4 MPa (3.0 m/min), and 70.4 MPa (3.5 m/min), the failure occurred in interfacial layer at the bottom of the joint.

通过激光熔焊工艺将厚度为2 mm的镀锌钢连接到厚度为2 mm的6061。填充焊丝为AlSi ₅，焊丝进给速度分别为2.8、3.0和3.2 m / min。研究了接头的显微组织和力学性能。通过光学显微镜，扫描电子显微镜和能量色散光谱法分析了在煤层脚趾区域形成的富锌区。同时，Fe ₂ Al ₅ Zn _0.4相，Fe（Al，Si）_0.5相和Fe（Al，Si）_0.7在沿焊缝的镀锌钢/钎焊金属界面处发现相。根据拉伸试验，接头的强度为31.6 MPa（送丝速度为2.8 m / min），61.4 MPa（3.0 m / min）和70.4 MPa（3.5 m / min），破坏发生在界面层。关节的底部。