Impact of processing defects on microstructure, surface quality, and tribological performance in 3D printed polymers | |
Department | 固体润滑国家重点实验室(LSL) |
Nayan Dhakal; Wang XL(王晓龙); Cayetano Espejo; Ardian Morina; Nazanin Emami | |
The second department | 3d打印摩擦器件课题组 |
2023-03 | |
Source Publication | Journal of Materials Research and Technology |
Volume | 23Issue:无Pages:1252-1272 |
Abstract | Additive manufacturing (AM), also known as three-dimensional (3D) printing, of polymer-based materials is growing as a time-efficient, economical, and environmentally sustainable technique for prototype development in load-bearing applications. This work investigates the defects arising from the processing in material extrusion-based AM of polymers and their impact on the part performance. The influence of raster angle orientation and printing speed on tribological characteristics, microstructure, and surface finish of acrylonitrile butadiene styrene (ABS) fabricated in a heated build chamber was studied. Comprehensive analysis with fractography and tomography revealed the formation, distribution, and locations of internal voids, while surface defects were studied with the topography analysis of as-printed surfaces. Surface roughness and tribological results show that printing speed can be optimally increased with a minimal impact on interlayer bonding and part performance. Increased printing speed allowed up to 58% effective reduction in printing time obtaining comparable mechanical properties at varying process parameters. 3D printed ABS exhibited dry sliding friction coefficients in the range of 0.18–0.23, whilst the maximum specific wear rate was 6.2 × 10−5 mm3/Nm. Higher surface roughness and increased printing speed exhibited delayed running-in during dry sliding, while insignificant influence was observed for steady-state friction and wear behaviors. The findings indicate that improved surface finish and reduced internal defects can be achieved with a controlled build environment allowing for higher printing speed. The observations in this study are evidence that 3D printing can be adapted for the sustainable manufacturing of polymeric components for tribological applications. |
MOST Discipline Catalogue | 工学 |
DOI | 10.1016/j.jmrt.2023.01.086 |
URL | 查看原文 |
Indexed By | SCI |
If | 6.4 |
Language | 英语 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/30207 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Cayetano Espejo; Nazanin Emami |
Affiliation | 1.Polymer-tribology Group, Division of Machine Elements, Lulea° University of Technology, SE 97187, Lulea°, Sweden 2.Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, LS2 9JT, Leeds, United Kingdom 3.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, China |
Recommended Citation GB/T 7714 | Nayan Dhakal,Wang XL,Cayetano Espejo,et al. Impact of processing defects on microstructure, surface quality, and tribological performance in 3D printed polymers[J]. Journal of Materials Research and Technology,2023,23(无):1252-1272. |
APA | Nayan Dhakal,Wang XL,Cayetano Espejo,Ardian Morina,&Nazanin Emami.(2023).Impact of processing defects on microstructure, surface quality, and tribological performance in 3D printed polymers.Journal of Materials Research and Technology,23(无),1252-1272. |
MLA | Nayan Dhakal,et al."Impact of processing defects on microstructure, surface quality, and tribological performance in 3D printed polymers".Journal of Materials Research and Technology 23.无(2023):1252-1272. |
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1-s2.0-S223878542300(10898KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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