Exit morphology and mechanical property of FDM printed PLA: influence of hot melt extrusion process

doi:10.1007/s40436-022-00405-1

CORC > 力学研究所 > 中国科学院力学研究所 > 宽域飞行工程科学与应用中心

	Exit morphology and mechanical property of FDM printed PLA: influence of hot melt extrusion process
	Bian YH(边艳华); Yu G(虞钢); Zhao, Xin 3; Li SX(李少霞); He XL(何秀丽); Tian CX(田崇鑫); Li ZY(李志永)
刊名	ADVANCES IN MANUFACTURING
	2022-08-10
关键词	Fused deposition modeling (FDM) Polylactic acid (PLA) Exit morphology Tensile property Printing process window
ISSN号	2095-3127
DOI	10.1007/s40436-022-00405-1
英文摘要	In order to study the hot melt extrusion process in fused deposition modeling (FDM), this study mainly explores the effects of printing temperature, heated block length, feeding speed on the exit morphology and mechanical properties of FDM printed Polylactic acid (PLA) samples. High-speed camera is used to capture the exit morphology of molten PLA just extruded to the nozzle. According to exit morphology, the outlet states of extruded molten material can be divided into four categories, namely, bubbled state, coherent state, expanding state, and unstable state. Tensile test results show that printing temperature, heated block length and printing speed have significant influence on tensile properties and fracture mode of FDM printed samples. When the heated block length is 15 mm and 30 mm, there is a ductile-brittle transition in fracture mode with the increase of printing speed. The printing process window under different heated block lengths and printing temperatures has been figured out and the distribution of printing process window under different printing speeds has been discussed. There is a maximum printing process window under the heated block length of 30 mm. This finding provides a frame work for performance prediction of FDM printed parts and theoretical guidance for expanding the scope of printing process window.
学科主题	Engineering, Manufacturing ; Materials Science, Multidisciplinary
分类号	二类
语种	英语
WOS记录号	WOS:000838565400001
资助机构	National Natural Science Foundation of China [11502269, 11672304] ; plan of Beijing Municipal Commission of Science and Technology [Z181100003818015]
其他责任者	He, XL ; Tian, CX (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. ; He, XL ; Tian, CX (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90143]
专题	宽域飞行工程科学与应用中心
作者单位	1.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 2.Beijing City Univ, Res Inst Printing 3D, Beijing 100083, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Bian YH,Yu G,Zhao, Xin,et al. Exit morphology and mechanical property of FDM printed PLA: influence of hot melt extrusion process[J]. ADVANCES IN MANUFACTURING,2022.
APA	边艳华.,虞钢.,Zhao, Xin.,李少霞.,何秀丽.,...&李志永.(2022).Exit morphology and mechanical property of FDM printed PLA: influence of hot melt extrusion process.ADVANCES IN MANUFACTURING.
MLA	边艳华,et al."Exit morphology and mechanical property of FDM printed PLA: influence of hot melt extrusion process".ADVANCES IN MANUFACTURING (2022).