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利用Ｇｌｅｅｂｌｅ－１５００热／力模拟试验机，研究了ＬＦ６铝合金的扩散焊工艺。通过对焊接温度、压力、时间的调整和选用不同的焊前处理方法，确定了最佳的扩散焊工艺规范。研究结果表明：在一定的温度和时间范围内，ＬＦ６铅合金扩散焊接头的剪切强度随焊接温度和时间的增加而提高；化学浸蚀法比机械打磨法能更有效的去除铝合金表面的氧化膜；在现有试验条件下，得到ＬＦ６铝合金扩散焊的最佳规范参数，搭接试样扩散焊接头的剪切强度可达１４７．２Ｍｐａ。
Using Gleeble-1500 thermal / force simulation test machine, LF6 aluminum alloy diffusion welding process. Through the welding temperature, pressure, time adjustment and selection of different welding pre-treatment method to determine the best diffusion welding process specifications. The results show that the shear strength of the LF6 lead alloy diffusion welding joint increases with the increase of the welding temperature and time at a certain temperature and time range. The chemical etching method can remove the surface of the aluminum alloy more effectively than the mechanical grinding method Oxide film. Under the existing experimental conditions, LF6 aluminum alloy diffusion welding the best specifications, the lap specimen diffusion welding shear strength up to 147.2Mpa.