摘要针对航空发动机涡轮叶片气膜孔加工的合格率低,难以大批量生产等难题,突破自适应加工系统、智能化网络控制系统、设备网络数据接口、快速换型工装等技术,基于精益“U 型”布局,建成用于涡轮叶片气膜孔加工的具有自动化、数字化、集成化、智能化等特征的电加工数字化生产线,实现“24 h 无人化生产”和多型号共线批量生产。经过两年的运行,一次交检合格率和设备综合效率等各项经济指标均达到设计目标,显著提高了生产效率和合格率,降低了叶片加工成本,解决了航空发动机涡轮叶片大批量生产的瓶颈。总结出电加工数字化生产线组成及架构、关键技术和建设步骤,对航空发动机制造业数字化生产线建设具有重要借鉴价值。
Focus on the low pass rate and bottleneck of mass production in air film hole machining of aeroengine turbine blade, breakthrough in adaptive machining system, intelligent network control system, equipment network data interface, quick-change tooling and other technologies, based on the lean “U-shaped” layout, an electric discharge machining digital production line for turbine blade air film hole machining was built, which has characteristics of automation, digitalization, integration and intelligence. This line can realize“ 24 h unmanned production” and multi-model collinear mass production. After 2 years of operation, various economic indicators such as the one-time inspection pass rate and the comprehensive efficiency of equipment have reached the leading level in China, which has significantly improved the productivity and pass rate, reduced the cost of blade machining, and the bottleneck of mass production of aero-engine turbine blade was solved. The composition and architecture, key technologies and design process of the digital production line for electric discharge machining are demonstrated, which has important reference value for the construction of the digital production line of the aero-engine manufacturing industry.
姬学庄,高剑,孙晗. 涡轮叶片气膜孔电加工数字化生产线[J]. 航空制造技术, 2023, 66(6): 60-65.
JI Xuezhuang, GAO Jian, SUN Han. Digital Production Line of Turbine Blade Air Film Hole Electric Discharge Machining[J]. Aeronautical Manufacturing Technology, 2023, 66(6): 60-65.