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基于液滴的多材料增材制造中微观尺度组装的微观结构与力学影响

Microstructural and Mechanical Implications of Microscaled Assembly in Droplet-based Multi-Material Additive Manufacturing.

作者信息

Guessasma Sofiane, Nouri Hedi, Roger Frederic

机构信息

INRA, UR1268 Biopolymères Interactions Assemblages, F-44300 Nantes, France.

IMT Lille Douai, Institut Mines-Télécom, Polymers and Composites Technology & Mechanical Engineering Department, 941 rue Charles Bourseul, 59508 Douai, France.

出版信息

Polymers (Basel). 2017 Aug 18;9(8):372. doi: 10.3390/polym9080372.

DOI:10.3390/polym9080372
PMID:30971050
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6418975/
Abstract

To reveal the potential and limits of multi-material three-dimensional (3D) printed parts in droplet-based additive manufacturing, a study combining tensile experiments and 3D imaging technique is proposed. A polymeric composite structure made of acrylonitrile butadiene styrene and thermoplastic polyurethane is manufactured using a two extrusion head printer. The quality of the interface between the two thermoplastics is quantified by adjusting the number of intertwining droplets at the interface. Tensile experiments assisted with digital image correlation are performed with two-interface orientation to discriminate shearing and traction at the interface. The 3D imaging results, which are based on X-ray micro-tomography, show the distinct features of droplet-based additive manufacturing in terms of porosity content and connectivity. Interface properties are found to control, in an incomparable way, the mechanical response. It is found that the interface quality is determinant for enhancing the ultimate performance whereas the interface orientation is found to be the perfect leverage for varying the slope of the linear part.

摘要

为了揭示基于液滴的增材制造中多材料三维（3D）打印部件的潜力和局限性，提出了一项结合拉伸实验和3D成像技术的研究。使用双挤出头打印机制造了由丙烯腈丁二烯苯乙烯和热塑性聚氨酯制成的聚合物复合结构。通过调整界面处交织液滴的数量来量化两种热塑性塑料之间界面的质量。采用双界面取向进行了辅助数字图像相关的拉伸实验，以区分界面处的剪切和拉伸。基于X射线显微断层扫描的3D成像结果显示了基于液滴的增材制造在孔隙率含量和连通性方面的独特特征。发现界面性能以一种无与伦比的方式控制机械响应。研究发现，界面质量是提高极限性能的决定性因素，而界面取向是改变线性部分斜率的理想杠杆。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/e729a0c5ab85/polymers-09-00372-g011a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/897c2ba06fe4/polymers-09-00372-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/84218d89b2e5/polymers-09-00372-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/77b0d5823cb6/polymers-09-00372-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/7e374e4cce80/polymers-09-00372-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/8c63598b5f5b/polymers-09-00372-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/3fb5c3b0811d/polymers-09-00372-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/2faf9fc45bac/polymers-09-00372-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/2991729528fe/polymers-09-00372-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/8927c6d48489/polymers-09-00372-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/7905e38d5038/polymers-09-00372-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/e729a0c5ab85/polymers-09-00372-g011a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/897c2ba06fe4/polymers-09-00372-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/84218d89b2e5/polymers-09-00372-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/77b0d5823cb6/polymers-09-00372-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/7e374e4cce80/polymers-09-00372-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/8c63598b5f5b/polymers-09-00372-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/3fb5c3b0811d/polymers-09-00372-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/2faf9fc45bac/polymers-09-00372-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/2991729528fe/polymers-09-00372-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/8927c6d48489/polymers-09-00372-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/7905e38d5038/polymers-09-00372-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea78/6418975/e729a0c5ab85/polymers-09-00372-g011a.jpg

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