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国家天文台FAST工程(500m口径球面射电望远镜)主动反射面基准面是一个口径500m、半径300m的球面,它由主体支承结构、促动器、反射面单元等组成.本文深入分析并研究了反射面单元铝合金背架结构网架节点与构件的加工技术.开创了铝合金网架杆件缩管连接模压成形新技术,为确保FAST工程项目的顺利实施打下了坚实基础.这些技术不仅成功解决了FAST工程反射面单元背架结构铝合金网架加工难题,也可为其他类似铝合金网架结构的加工提供参考.
The National Astronomical Observatory FAST Project (500m Spherical Spherical Radio Telescope) The active reflective surface is a spherical surface with a diameter of 500m and a radius of 300m, which is composed of the main support structure, actuator, reflector unit, etc. In this paper, Unit aluminum alloy backstructure grid nodes and components processing technology .Cold aluminum grid rod contraction pipe connection forming new technology, to ensure the smooth implementation of the FAST project laid a solid foundation.These technologies not only successfully solved FAST engineering reflector unit back structure aluminum alloy grid processing problems, but also for other similar aluminum alloy grid structure processing reference.