C919项目研制实现里程碑节点目标
翼身组合体各大部段完成对接，顺利实现交付
本报讯 2月25日，中航工业西飞完成了C919大型客机翼身组合体各大部段对接，顺利实现交付，这表明大客翼身组合体综合验证项目已由机体结构制造阶段转入试验阶段，标志着大客项目研制实现了里程碑节点目标。
大客翼身组合体综合验证项目是为了化解大客飞机全机格兰特试验进度风险和技术风险，对多项关键设计及制造技术开展预验证的重要关键项目。2012年2月，作为C919大型客机主要的机体制造商，西飞全面启动了研制工作，并严格按照中国商飞质量要求，积极开展工程数据工艺审查，及时编发了制造一级网络计划和研制工艺工作二级网络计划，明确了技术准备、生产准备、零组件配套、总装装配等过程控制节点。技术团队大力开展新材料、新工艺、新技术科研攻关，突破了C919机翼下中壁板喷丸成型技术难关，全面掌握了大型复杂钛合金零件热处理变形控制技术，攻克了铝锂合金大型蒙皮和长桁加工技术难题，实现了龙骨梁、超级壁板等大部件的无余量装配。
在各方的全力配合和研制攻坚团队的奋力拼搏下，大客翼身组合体综合验证项目稳步推进。2013年6月26日，翼身组合体验证项目中央翼上壁板如期开铆；9月22日中央翼进入总装，外翼翼盒总装开铆；10月21日中机身进入总装；11月25日中机身、外翼翼盒大部段总装下线。截至目前，西飞先后完成了大客翼身组合体综合验证项目前机身、中机身、中后机身装配对接，外翼翼盒与机身装配对接，以及起落架安装等各大部段装配任务，并顺利实现交付。
翼身组合体综合验证项目是整个C919大型客机项目研制中首项核心大部件制造及装配项目，该项目的如期交付对拉动整个项目研制进度、突破制造技术障碍、加快各相关试验验证项目的全面启动起到了积极的促进作用。（吴宏伟）
http://news.ifeng.com/mil/2/detail_2014_03/06/34494927_0.shtml
via BING: :wacko:
C919 project development to achieve the milestone goal node
Large sections of wing and fuselage assemblies docking, smooth delivery
Newspaper News February 25, AVIC West completed the C919 large passenger aircraft wing-body combination of the big butt, smooth delivery, suggesting that large wing and fuselage assemblies integrated validation project has been created by the body construction phase to pilot phase, marked a big development projects to achieve the milestone goal node.
Large wing and fuselage assemblies integrated validation project is to address the bus grant of aircraft test schedule risk and technology risk, on a number of key design and manufacturing technology to verify the key projects. In February 2012, major airframe manufacturers as the C919 large passenger aircraft, XAC has started preparation work and in strict accordance with the quality requirements for commercial aircraft in China, actively carry out engineering information technology reviews, network planning and development process and disseminated in a timely manner to make level II network plan, defined the technical preparation, production, preparation, components, Assembly Assembly process control nodes. Technical team developing new materials, new processes, new technologies, scientific research and broke the C919 under the wing panels PEEN forming technical difficulties, have complete control over large and complex parts of titanium alloy heat treatment deformation control technology, captured the large aluminum-lithium alloy outer covering and trussed processing technical difficulties, achieved the keel beam, no margin for super large components such as wall assemblies.
In the development of the full cooperation of the parties and under assault team worked hard, large wing and fuselage assemblies integrated validation project was steadily advanced. On June 26, 2013, the wing-body configuration experience card project central wing panels on schedule to open the riveting; September 22 central wing entered the final Assembly, side wing and wing box Assembly rivet on October 21 entering the final Assembly of the fuselage on November 25 in the fuselage, wing and wing box assembly line outside. Up to now, XAC has completed comprehensive validation of a wing-body combination item in the fuselage, fuselage, rear fuselage Assembly and docking, the outer wing, fuselage and wing box Assembly and docking, as well as the installation of landing gear, and other major Assembly task, and successful delivery.
Wing-body combination integrated validation project is the first C919 large aircraft project development core parts manufacturing and Assembly projects, the timely delivery of the project to pull the entire project development schedule, break-through technology barriers, speed up the relevant test to verify that the project started has played a positive role in promoting. (Wu Hongwei)
Deino
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