航天器通风结构激光选区熔化成形技术研究
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摘要
分析了目前航天器中薄壁铝合金通风结构在传统加工工艺过程中存在的问题。基于激光选区熔化成形技术(SLM)开展了薄壁铝合金通风结构的3D打印技术研究。研究分析了航天器薄壁结构SLM成形的工艺性、成形工艺支撑设计和成形工艺过程控制,总结了薄壁铝合金结构SLM成形的技术要点。结合我国航天器产品结构特点和发展趋势,对SLM技术的应用研究提出几点建议。
The problems of thin-walled aluminium alloy ventilation structure in spacecraft are analyzed. 3D printing of thin-walled aluminium alloy ventilation structure was studied based on selective laser melting(SLM) technology. The technological properties, supporting design and the control of forming process are studied about thin-walled aluminium alloy structure of spacecraft, and the main technical points of SLM are summarized. According to the structral characteristics and development of China aerospace products, the suggestions for application of SLM are put forward.
The problems of thin-walled aluminium alloy ventilation structure in spacecraft are analyzed. 3D printing of thin-walled aluminium alloy ventilation structure was studied based on selective laser melting(SLM) technology. The technological properties, supporting design and the control of forming process are studied about thin-walled aluminium alloy structure of spacecraft, and the main technical points of SLM are summarized. According to the structral characteristics and development of China aerospace products, the suggestions for application of SLM are put forward.
引文
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2吴怀宇.3D打印:三维智能数字化创造[M].北京:电子工业出版社,2014
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4 Li Yang,Ola H,Harvey W,et al.Mechanical properties of 3D re-entrant honeycomb auxetic structures realized via additive manufacturing[J].International Journal of Solids and Structures,2015:475~490
5 Seung K M,Yu E T,Jihong H,et al.Application of 3d printing technology for designing light-weight unmanned aerial vehicle wing structures[J].International Journal of Precision Engineering and Manufacturing-green Technology,2014:223~228
6 Emmelmann C,Scheinemann P,Munsch M,et al.Laser additive manufacturing of modified implant surfaces with osseointegrative characteristics[J].Physics Procedia,2011(12):375~384
7 Gong Weiyan,Qi Junfeng,Wang Zhe,et al.Microstructure and mechanical properties of selective laser melting AlSi10Mg[J].Springer Proceedings in Physics,2016(192):113~116