大型整体金属结构增材制造技术适航验证
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摘要
针对民用飞机主承力结构金属增材制造技术适航验证方面存在的问题,开展金属结构增材制造技术适航验证研究。通过增材制造技术适用适航条款分析,给出了民用飞机金属结构增材制造技术适航验证思路,包括材料规范的建立、增材制造工艺的认证、材料强度性能的确定、结构特殊系数的选取和结构性能的验证,对每项验证方法给出了具体实施途径。以某型号前起落架支柱外筒增材制造A-100超高强度钢为例,给出了大型整体金属结构增材制造技术适航验证具体实施方案。
In order to solve the problems existing in airworthiness verification of the large integral metallic structure for civil aircraft main bearing part,the airworthiness verification of the metallic structure additive manufacturing technology was carried out.Through the analysis of applicable airworthiness clauses of additive manufacturing technology,the general idea of airworthiness verification of the metallic structure additive manufacturing technology of civil aircraft is given,including the establishment of material specification,the determination of material strength properties,the selection of structural special factor,and the verification of structural performance.Each verification method gives a specific implementation approach.Taking outer cylinder of the nose landing gear pillar which is made by additive manufacturing technology with A-100 ultrahigh strength steel as an example,a specific implementation plan for airworthiness verification of additive manufacturing technology for large integral metallic structure is given.
In order to solve the problems existing in airworthiness verification of the large integral metallic structure for civil aircraft main bearing part,the airworthiness verification of the metallic structure additive manufacturing technology was carried out.Through the analysis of applicable airworthiness clauses of additive manufacturing technology,the general idea of airworthiness verification of the metallic structure additive manufacturing technology of civil aircraft is given,including the establishment of material specification,the determination of material strength properties,the selection of structural special factor,and the verification of structural performance.Each verification method gives a specific implementation approach.Taking outer cylinder of the nose landing gear pillar which is made by additive manufacturing technology with A-100 ultrahigh strength steel as an example,a specific implementation plan for airworthiness verification of additive manufacturing technology for large integral metallic structure is given.
引文
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[18]Advisory Circular.Casting factors:AC25.621-1[S].Washington,D C:Federal Aviation Administration,2014.
[19]沈真,柴亚南,杨胜春,等.复合材料飞机结构强度新规范要点评述[J].航空学报,2006,27(5):784-788.(SHEN Z,CHAI Y N,YANG S C,et al.The outline of new specifications on strength of composite aircraft structures[J].Acta Aeronautica et Astronautica Sinica,2006,27(5):784-788.)
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[21]ROBERT M T,JOE M,LORI F.Certification strategy for additively manufactured structural fittings[C]//Proceedings of the 26th Annual International Solid Freeform Fabrication Symposium-An Additive Manufacturing Conference.Maryland:Robert Taylor,2016.
[2]陈济轮,杨洁,于海静.国外高能束增材制造技术应用现状与最新发展[J].航天制造技术,2014(4):1-4.(CHEN J L,YANG J,YU H J.The abroad application and latest development of high-energy beam additive manufacturing technology[J].Aerospace Manufacturing Technology,2014(4):1-4.)
[3]林鑫,黄卫东.应用于航空领域的金属高性能增材制造技术[J].中国材料进展,2015,34(9):684-688.(LIN X,HUANG W D.High performance metal additive manufacturing technology applied in aviation field[J].Materials China,2015,34(9):684-688.)
[4]崔灿,王向明,吴斌,等.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[J].航空制造技术,2018,61(10):74-79.(CUI C,WANG X M,WU B,et al.Study on application of laser deposited additive manufacturing technology on aircraft undercarriage[J].Aeronautical Manufacturing Technology,2018,61(10):74-79.)
[5]苏亚东,王向明,吴斌,等.4D打印技术在航空飞行器研制中的应用潜力[J].航空材料学报,2018,38(2):59-69.(SU Y D,WANG X M,WU B,et al.Application potential of 4D printing technology in development of aircraft[J].Journal of Aeronautical Materials,2018,38(2):59-69.)
[6]WILLIAM E F.Metal additive manufacturing:a review[J].Journal of Materials Engineering and Performance,2014,23(6):1917-1928.
[7]MOHSEN S,MICHAEL G,JESS W,et al.Progress towards metal additive manufacturing standardization to support qualification and certification[J].The Minerals,Metals&Materials Society,2017,69(3):439-455.
[8]王向明,崔灿,苏亚东,等.飞机高能束增材制造结构研究[J].航空制造技术,2017,60(10):16-21.(WANG X M,CUI C,SU Y D,et al.Aircraft structures technology based on power beam additive manufacturing[J].Aeronautical Manufacturing Technology,2017,60(10):16-21.)
[9]沈小明,陈挺,张迎春.民用航空材料适航审定[J].材料工程,2017,45(11):139-142.(SHEN X M,CHEN T,ZHANG Y C.Airworthiness certification of civil aviation material[J].Journal of Materials Engineering,2017,45(11):139-142.)
[10]SAE Aerospace.Titanium alloy direct deposited products6Al-4V annealed:AMS4999A[S].Commonwealth,Pennsylvania:SAE International,2011.
[11]MOHSEN S,AYMAN S,JACK B,et al.Overview of materials qualification needs for metal additive manufacturing[J].The Minerals,Metals&Materials Society,2016,68(3):747-764.
[12]景绿路.国外增材制造技术标准分析[J].航空标准化与质量,2013(4):44-48.(JING L L.Analysis of foreign additive manufacturing technology standards[J].Aeronautic Standardization&Quality,2013(4):44-48.)
[13]Advisory Circular.Material strength properties and material design values:AC 25.613-1[S].Washington,D C:Federal Aviation Administration,2003.
[14]Federal Aviation Administration.Metallic materials properties development and standardization:MMPDS[S].Columbus:Battelle Memorial Institute,2016.
[15]王华明.高性能大型金属构件激光增材制造:若干材料基础问题[J].航空学报,2014,35(10):2690-2698.(WANG H M.Materials fundamental issues of laser additive manufacturing for high-performance large metallic components[J].Acta Aeronautica et Astronautica Sinica,2014,35(10):2690-2698.)
[16]MICHAEL G.Additive manufacturing in the context of structural integrity[J].International Journal of Fatigue,2017(94):168-177.
[17]冯志军,闫卫平,申泽骥.铝合金铸件与大飞机制造[J].航空制造技术,2017,60(5):36-39.(FENG Z J,YAN W P,SHEN Z J.Aluminum alloy casting and aircraft manufacturing[J].Aeronautical Manufacturing Technology,2017,60(5):36-39.)
[18]Advisory Circular.Casting factors:AC25.621-1[S].Washington,D C:Federal Aviation Administration,2014.
[19]沈真,柴亚南,杨胜春,等.复合材料飞机结构强度新规范要点评述[J].航空学报,2006,27(5):784-788.(SHEN Z,CHAI Y N,YANG S C,et al.The outline of new specifications on strength of composite aircraft structures[J].Acta Aeronautica et Astronautica Sinica,2006,27(5):784-788.)
[20]苏亚东,吴斌,王向明.增材制造技术在航空装备深化应用中的研究[J].航空制造技术,2016,59(12):42-48.(SU Y D,WU B,WANG X M.Research on further application of additive manufacturing technology on aviation equipment[J].Aeronautical Manufacturing Technology,2016,59(12):42-48.)
[21]ROBERT M T,JOE M,LORI F.Certification strategy for additively manufactured structural fittings[C]//Proceedings of the 26th Annual International Solid Freeform Fabrication Symposium-An Additive Manufacturing Conference.Maryland:Robert Taylor,2016.