Bonding quality and fracture analysis of polyamide 12 parts fabricated by fused deposition modeling

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2017专题

	Bonding quality and fracture analysis of polyamide 12 parts fabricated by fused deposition modeling
	Guo, Jianjun; Li, Hao; Zhang, Shuai; Yi, Zhiran; Li, Jie; Sun, Aihua; Xu, Gaojie
刊名	RAPID PROTOTYPING JOURNAL
	2017
卷号	23 期号:6 页码:973-982
ISSN号	1355-2546
英文摘要	Purpose - This work aims to evaluate the influence of rheological properties of building materials on the bonding quality and ultimate tensile strength in the fused deposition modeling (FDM) process, through the investigation of parts printed by semi-crystalline and amorphous resins. Little information is currently available about the influence of the crystalline nature on FDM-printed part quality.Design/methodology/approach - Semi-crystalline polyamide 12 and amorphous acrylonitrile butadiene styrene (ABS) were used to assess the influence of rheological properties on bonding quality and the tensile strength, by varying three important process parameters: materials, liquefier temperature and raster orientation. A fractography of both tensile and freeze-fractured samples was also investigated.Findings - The rheological properties, mainly the melt viscosity, were found to have a significant influence on the bonding quality of fused filaments. Better bonding quality and higher tensile strength of FDM parts printed with semi-crystalline PA12, as compared with amorphous ABS, are suggested to be a result of higher initial sintering rates owing to the lower melt viscosity of PA12 at low shear rates. Near-full dense PA12 parts were obtained by FDM.Originality/value - This project provides a variety of data and insight regarding the effect of materials properties on the mechanical performance of FDM-printed parts. The results showed that FDM technique allows the production of PA12 parts with adequate mechanical performance, overcoming the greatest limitation of a dependence on amorphous thermoplastics as a feedstock for the production of prototypes.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/14048]
专题	2017专题
推荐引用方式 GB/T 7714	Guo, Jianjun,Li, Hao,Zhang, Shuai,et al. Bonding quality and fracture analysis of polyamide 12 parts fabricated by fused deposition modeling[J]. RAPID PROTOTYPING JOURNAL,2017,23(6):973-982.
APA	Guo, Jianjun.,Li, Hao.,Zhang, Shuai.,Yi, Zhiran.,Li, Jie.,...&Xu, Gaojie.(2017).Bonding quality and fracture analysis of polyamide 12 parts fabricated by fused deposition modeling.RAPID PROTOTYPING JOURNAL,23(6),973-982.
MLA	Guo, Jianjun,et al."Bonding quality and fracture analysis of polyamide 12 parts fabricated by fused deposition modeling".RAPID PROTOTYPING JOURNAL 23.6(2017):973-982.