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美国洛克威尔公司Rocketdyne分公司用机器人气体保护钨极电弧焊焊接航天飞机主发动机.该公司在独特的焊接结构中采用的是高强度合金钢,其中包括镍基和铁基的铬铁镍合金和不锈钢.采用机器人技术能解决这一焊接所带来的难题.这项技术包括初步使用预编程机器人焊接单元、视觉焊缝跟踪器、焊缝熔池焊透传感器和脱机编程.对该焊接系统结构、性能和操作顺序作了详细介绍.焊接系统的核心是Cybotech机器人和RC-6控制器.最后叙述马歇尔空间飞行中心和Rocketdyne公司对这一技术的研究工作.
The Rocketdyne division of Rockwell, USA, uses a robot gas shielded tungsten arc welding to weld the space shuttle’s main engine, and uses unique high-strength alloy steels, including nickel-based and iron-based ferrochrome nickel alloys And stainless steel.The robotics solution to the challenges posed by this welding process includes the initial use of preprogrammed robotic welding cells, visual seam trackers, weld pool weld penetration sensors, and off-line programming.This welding System structure, performance and operating sequence are described in detail.The core of welding system is Cybotech robot and RC-6 controller.Finally, the paper describes Marshall Space Flight Center and Rocketdyne company’s research work on this technology.