钛合金层合梁SPF/DB制造工艺研究

摘要

The laminated structure part has achieved special attitude for its high damage tolerance, and become a type of new application of SPF/DB technology. The laminated "I" beam of titanium alloy can be manufactured by SPF/DB combined technology as the part is fist superplastic formed and then is diffusion bonded to an integrated structure. The size, microstructure and property of the part can conform to design requirements for application. But more research must be carried out to optimize the technical parameters.%钛合金层合结构因具有较高的损伤容限而受到重视,并成为超塑成形/扩散连接技术应用的一个新方向.通过采用先超塑成形再进行热等静压扩散连接成为整体构件的SPF/DB组合工艺方法,可以实现钛合金层合结构波纹工字梁的制造,其外形尺寸、微观组织和性能等基本能满足设计使用要求,但其工艺参数仍有待通过深入研究进一步优化.