Al—Li2091合金扩散连接工艺研究

从金属扩散连接的理论出发，研究了影响Ａｌ－Ｌｉ合金扩散连接质量的因素，提出了包括搭接长度温度，压力、连接表面的处理方法及状况等的最佳成形参数，采用一种新的扩散连接中间夹层处理方法，即用等离子喷涂法在连接表面上喷涂上某种材料，形成一个中间夹层。并且得出，喷涂不同材料作为夹层，所得连接质量是不同的，Ａｇ夹层质量最好。

Study on the Diffusion Bonding Technology of Al-Li 2091 Alloy

Afer deliberating the theory of metal diffusion bonding, the factors including bond overlap, temperature,pressure, time and different metheds of surface treatment to influence quality of Al -Li alloy DB are studied and optimized. A new method of making interlayer in the diffusion bonding-plasma-spray is studied especially to spray one material on the surface of the diffusion bonding materials, and this process is done successfully. And, the different interlayer of materials is spraied, the diffrent strength is observed and Ag is the best interlayer material.