栅格角度对碳增强PET-G材料FDM增材制造板拉伸性能的影响

IF 1.4 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Science of Sintering Pub Date : 2023-01-01 DOI:10.2298/sos220916010e

A. Elayeb, Milovan R. Janković, Stefan Dikic, D. Bekric, I. Balać

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引用次数: 0

摘要

实验评估了短碳纤维增强PET-G材料薄板试样在不同光栅角度(打印方向)下的拉伸性能。在增材制造(AM)中，光栅角是影响最终零件强度和刚度的关键打印参数之一。用0?栅格角度，与用90?光栅角度分别为- 52.2 MPa和25.4 MPa。同样，在0?栅格角度，与用90?光栅角分别为- 4752 MPa和1569 MPa。用扫描电子显微镜(SEM)对样品进行分析。断裂表面。扫描电镜图像显示了相当大的体积分数的空隙(孔隙度)。孔隙率以及相邻光栅之间的弱结合可能是垂直于加载方向的光栅打印样品拉伸性能差的关键因素之一(90?光栅角)。

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Influence of raster angle on tensile properties of FDM additively manufactured plates made from carbon reinforced PET-G material

Tensile properties of thin plate specimens made from short carbon fiber reinforced PET-G material are experimentally evaluated for various raster angles (printing directions). In additive manufacturing (AM), raster angle is recognized as one of the key printing parameters which strongly influences the strength and stiffness of the final part. The relatively high average value of ultimate tensile strength was obtained for specimens printed with the 0? raster angle, compared to the value obtained for specimens printed with the 90? raster angle - 52.2 MPa and 25.4 MPa, respectively. Similarly, noticeably higher average value of modulus of elasticity was obtained for specimens printed with the 0? raster angle, compared to the value obtained for specimens printed with the 90? raster angle - 4752 MPa and 1569 MPa, respectively. Scanning electron microscopy (SEM) was used for analysis of specimens? fracture surfaces. SEM images revealed considerable volume fraction of voids (porosity). ?he porosity, together with weak bonding between two adjacent rasters, could be one of key factors for poor tensile properties of samples printed with rasters perpendicular to direction of load application (90? raster angle).

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来源期刊

Science of Sintering 工程技术-材料科学：硅酸盐

CiteScore

2.50

自引率

46.70%

发文量

审稿时长

3.3 months

期刊介绍： Science of Sintering is a unique journal in the field of science and technology of sintering. Science of Sintering publishes papers on all aspects of theoretical and experimental studies, which can contribute to the better understanding of the behavior of powders and similar materials during consolidation processes. Emphasis is laid on those aspects of the science of materials that are concerned with the thermodynamics, kinetics and mechanism of sintering and related processes. In accordance with the significance of disperse materials for the sintering technology, papers dealing with the question of ultradisperse powders, tribochemical activation and catalysis are also published. Science of Sintering journal is published four times a year. Types of contribution: Original research papers, Review articles, Letters to Editor, Book reviews.