钎焊是铝合金连接最常用的方法之一。到目前为止,铝合金钎焊用钎料主要为Al-Si系材料,该类钎料的熔点较高,在焊接过程中极易造成铝合金母材的溶蚀、晶粒长大,导致焊接接头的性能降低。综述了国内外铝合金焊接钎料的主要研究成果,指出了降低焊接温度的难点与问题。 Brazing is one of the most commonly used methods of aluminum alloy connection. So far, Al-Si brazing filler metal is mainly Al-Si-based material, the higher the melting point of such brazing filler, the welding process can easily lead to corrosion of the parent aluminum alloy, grain growth, resulting in welded joints The performance is reduced. The main research results of domestic and foreign aluminum alloy brazing alloys are summarized, and the difficulties and problems of reducing the welding temperature are pointed out.