Maximizing mechanical properties and minimizing support material of PolyJet fabricated 3D lattice structures

doi:10.1016/j.addma.2020.101257

IMECH-IR > 流固耦合系统力学重点实验室

	Maximizing mechanical properties and minimizing support material of PolyJet fabricated 3D lattice structures
	Liu WF(刘文峰)1,2 ; Song HW(宋宏伟)1,2 ; Huang CG(黄晨光)1,2
通讯作者	Song, Hongwei(songhw@imech.ac.cn)
发表期刊	ADDITIVE MANUFACTURING
	2020-10-01
卷号	35 页码:13
ISSN	2214-8604
摘要	Anisotropy of mechanical properties and support material removal are the two main problems when fabricating 3D lattice structures by integrated printing via additive manufacturing (AM) technology. Aiming at these two problems, a snap-fit method is introduced into PolyJet technology to fabricate polymer lattice structures with four typical configurations, namely BCC, BCC-Z, FCC and octet. Printing materials and printing time in this novel method are both reduced by over 80 % compared to the conventional printing method. Uniaxial compression tests indicate that both the strengths and energy absorptions of the four kinds of snap-fitted lattices are increased by over 100 % compared to the integrated counterparts. The effect of strut thickness on compressive responses of the snap-fitted and integrated lattices is investigated. With the decrease of strut thickness, the advantage in the strength of the snap-fitted lattices becomes more obvious compared to the integrated counterparts. Ideal maximum strength models based on yielding, elastic buckling and inelastic buckling are developed and are able to predict the compressive peak strengths of the snap-fitted PolyJet lattices. This study opens up an avenue for the fabrication of large scale 3D printed lattice structures with optimal mechanical properties and without support material removal problem.
关键词	Anisotropy PolyJet technology lattice structures Snap-fit Strength
DOI	10.1016/j.addma.2020.101257
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000576650600002
关键词[WOS]	ENERGY-ABSORPTION ; BUILD ORIENTATION ; LIGHTWEIGHT ; STRUTS
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Manufacturing ; Materials Science, Multidisciplinary
资助项目	National Natural Science Foundation of China[91016025] ; National Natural Science Foundation of China[11472276] ; National Natural Science Foundation of China[11602271] ; National Natural Science Foundation of China[11332011]
项目资助者	National Natural Science Foundation of China
论文分区	一类
力学所作者排名	1
RpAuthor	Song, Hongwei
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/85331
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu WF,Song HW,Huang CG. Maximizing mechanical properties and minimizing support material of PolyJet fabricated 3D lattice structures[J]. ADDITIVE MANUFACTURING,2020,35:13.
APA	刘文峰,宋宏伟,&黄晨光.(2020).Maximizing mechanical properties and minimizing support material of PolyJet fabricated 3D lattice structures.ADDITIVE MANUFACTURING,35,13.
MLA	刘文峰,et al."Maximizing mechanical properties and minimizing support material of PolyJet fabricated 3D lattice structures".ADDITIVE MANUFACTURING 35(2020):13.

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