激光直接沉积成形增材制造技术在飞机起落架上的应用研究  

Study on Application of Laser Deposited Additive Manufacturing Technology on Aircraft Undercarriage

作　　者：崔灿[1] 王向明[1] 吴斌[1] 毕世权[1] 苏亚东[1] CUI Can, WANG Xiangming, WU Bin, BI Shiquan, SU Yadong(AVIC Shenyang Aircraft Design and Research Institute, Shenyang 110035, Chin)

机构地区：[1]航空工业沈阳飞机设计研究所,沈阳110035

出　　处：《航空制造技术》2018年第10期74-79,共6页Aeronautical Manufacturing Technology

摘　　要：激光直接沉积成形对于飞机起落架制造具有"变革性"意义,具有突破规格限制、减少原材料浪费、缩短加工制造周期等技术优点,在未来飞机起落架快速试制方面具有较为明显的技术优势及应用前景。目前已突破A-100钢激光直接沉积增材制造成形工艺、性能质量控制等关键技术,试制的起落架零件已在飞机上实现领先试用,力学性能基本达到材料锻件水平。但面向该技术的推广应用仍面临着成形工艺策略、热处理控制、无损检测、构件表面强化及综合验证等关键技术的进一步突破。The laser deposited additive manufacturing is of a revolutionary significance for aircraft landing gear manufacturing. It has many technical vantages, such as breaching restriction of material specification, reducing waste of original material, and shortening manufacturing time. This technology has obvious advantage and application prospects on rapid trial-manufacture for the future aircraft undercarriage. At present, the key technologies of laser deposited A-100 steel such as forming process, quality control and so on have been breached through. The undercarriage formed by laser deposition has achieved leading application on aircraft. Mechanical properties of parts reached almost that of the forgings. Some keys such as strategy of forming process, control of heat treatment, non-destructive testing, surface strengthening and integrated evaluation, need to be further broken through and solved for extended application of this technology.

关 键 词：激光直接沉积成形 增材制造 飞机起落架 超高强度钢 快速试制技术 

分 类 号：V226[航空宇航科学与技术—飞行器设计]