Apparently they use this new machine tool to manufacture CJ1000 turbine blade
西安光机所助力C919国产航发CJ-1000AX 完成首台整机装配 发表日期：2018-01-04光子中心来源：西安光学精密机械研究所【放大 缩小】 据工信部官网29日消息，2017年12月25日，大型客机发动机验证机（CJ-1000AX）首台整机在上海完成装配，同时该发动机的核心机实现了100%设计转速稳定运转，标志着我国首个民用大涵道比涡扇发动机整机验证平台已经建立，将为后续研制工作奠定坚实基础。 CJ-1000AX由中国航发集团商发公司负责研制，直径1.95米，长3.29米。其结构复杂、试制难度大，包含风扇/增压级、核心机、低压涡轮和附件传动机匣装置，由近35000个零组件组成。其中核心机由高压压气机、燃烧室和高压涡轮及相关系统组成，实际工作的温度、压力、转速极高，其技术复杂程度和难度代表着我国工业制造领域的最高水平。 长期以来,由于极端制造能力不足，我国航空发动机核心机关键部件加工（高压涡轮叶片气膜孔）一直存在重铸层、微裂纹、再结晶等制造缺陷，在发动机燃烧室超高温及超高压工作条件下，极易产生叶片裂纹、蠕变、侵蚀，甚至断裂等问题，对发动机的推重比和寿命产生致命影响，致使我国飞机事故频出（80%都跟发动机叶片断裂失效有关）。 西安光机所面向国家重大战略需求，在国内率先研制出两代三类系列化（四轴/五轴/六轴）光子极端制造装备，突破了困扰行业多年的单晶涡轮叶片极端制造难题，为国产大飞机C919换上“中国心”提供关键制造手段，并成为中国航发集团商发公司涡轮叶片气膜孔加工唯一制造单位，使我国彻底摆脱航空发动机核心部件“能设计、无法实现”的窘境，标志着我国航空发动机设计、制造及国产化进程进入全新的发展阶段。
Google translation readable
Xi'an Photovoltaic Institute to help C919 domestic aircraft CJ-1000AX completed the first machine assembly Published: 2018-01-04 Photon Center Source: Xi'an Institute of Optics and Fine Mechanics 【Zoom】
According to the official website of the Ministry of Industry and Information 29, 2017 12 On the 25th, the first large-scale passenger aircraft engine verification machine (CJ-1000AX) completed the assembly in Shanghai and the core engine of the engine achieved 100% design speed and stable operation, marking the first civil large bypass ratio turbofan.
The whole engine verification platform has been established, which will lay a solid foundation for subsequent research and development. CJ-1000AX by the China Aviation Industry Development Corporation is responsible for business development company, 1.95 meters in diameter, 3.29 meters long. Its complex structure, difficult trial which including fan / supercharger, core machine, low-pressure turbine and accessories drive box device, composed of nearly 35,000 components.
The core machine consists of high-pressure compressor, combustion chamber and high-pressure turbine and related systems. The actual working temperature, pressure and speed are very high. The technical complexity and difficulty represent the highest level in China's industrial manufacturing.
For a long time, due to the lack of extreme manufacturing capacity, key components of the aeroengine core processing (high-pressure turbine blade film hole) there have been recast layer, micro-cracks, recrystallization and other manufacturing defects, the engine combustion chamber ultra-high temperature and ultra-high pressure work. Under the conditions, it is easy to produce the problems of blade crack, creep, erosion and even rupture, which will have a fatal impact on the thrust-weight ratio and life of the engine, resulting in the frequent occurrence of aircraft accidents in our country (80% are related to the failure of the engine blade).
In order to meet the major national strategic needs, XIOPM took the lead in developing two generations of three series (four-axis / five-axis / six-axis) photonic extreme manufacturing equipment domestically and broke through the difficult problem of manufacturing single- C919 for large domestic aircraft put on the "heart of China" to provide key manufacturing means, and become China Aviation Industry and Trade Group Co., Ltd. made the only manufacturer of gas turbine blade turbine blade manufacturing units, so that our country completely get rid of the core components of aero-engine "can design but can not be achieved" Dilemma, marking China's aeroengine design, manufacturing and localization process into a new stage of development.
