运载器高性能轻质金属舱段材料工艺探讨

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Abstract：Metalic modules are main important structures of expendable launch vehicles.It is required that the products have high properties，lightweight and manufacturing with low costs and the structures of long-term reusable launch vehicles need much more stronger and reliable.Aluminium alloys of high properties has the biggest proportion of structural materials among metallic modules，and sand casting，forging，spinning forming， joining assemblies，etc.of deformed aluminum alloys with high properties are stillmain structural manufacturing technologies.Magnesium alloy with high properties has great potential applications to decrease the structural weight.At the same time，the applications of additive manufacturing are rising rapidly. Combining relevant engineering researches and some documents，itanalyses theresearch status of relevant material processingof the above mentioned，and it puts forward some applying and developing proposals.Itis beneficial to determine the technological lines of reasonable material selection and processing optimization of products development with synthetic balancing oriented to the whole life cycle，and to deepen crucial research and application of material and processing with high properties，and to realize strong and reliable products and high efficient smooth production.

Keywords： aluminium alloys;sand casting; plastic forming；joining assembly;rare earth magnesiumaloy;additive manufacturing

1序言

航天固体或液体运载器箭体结构舱段包含尾段、级间段、过渡段及有效载荷舱段等。（剩余17946字）