优化FDM技术生成PLA和ABS试样的构建方向和光栅角度的实验研究

IF 0.8 Q3 ENGINEERING, MULTIDISCIPLINARY International Journal of Engineering Research in Africa Pub Date : 2023-08-08 DOI:10.4028/p-5vBIxb
A. El Azzouzi, H. Zaghar, L. Lasri, N. Moujibi
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引用次数: 0

摘要

熔融沉积建模(FDM)工艺越来越多地用于机械零件的制造,尤其是在汽车和航空领域。这项工作的目的是优化构建方向,以获得具有最佳机械性能、尺寸精度、表面质量和最低总成本的聚乳酸(PLA)和丙烯腈-丁二烯-苯乙烯(ABS)样品。为了实现这一点,PLA和ABS试样采用FDM技术制造,具有三个构建方向(平坦、边缘、直立)和三个光栅角度(0°、45°、90°)。此外,粗糙度测试仪也用于测量表面质量。因此,研究结果表明,由于断裂机制和加载方向的原因,两种材料的机械强度都随着光栅角的减小和从直立定向到平面定向而增加。此外,制造方向和光栅角度显著影响尺寸精度和总成本。此外,根据制造方向和光栅角度,表面粗糙度存在很大差异;垂直测量会增加表面粗糙度值。我们的目的是通过拉伸实验研究平面、边缘和垂直构建方向以及光栅角度对PLA和ABS材料的总成本、拉伸强度、尺寸精度和表面粗糙度的影响。
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Experimental Investigation to Optimize Build Orientation and Raster Angle for PLA and ABS Specimens Generated by FDM Technology
The fused deposition modeling (FDM) process is used increasingly in the manufacture of mechanical parts and more particularly in the automotive and aeronautical fields. The purpose of this work is to optimize build orientation for obtaining polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS) samples with the best mechanical properties, dimensional accuracy, surface quality, and minimal total cost. For achieving This, PLA and ABS specimens are fabricated by FDM technology with three build orientations (flat, on edge, upright) and three raster angles (0°, 45°, 90°).at first, the dimensions of the produced samples are measured .secondly, the tensile test, DETLAB equipment was used to obtain tensile stress. In addition, roughness testers were also used to measure surface quality. As a consequence, the findings indicate that the mechanical strength increases with decreasing raster angle and by aligning from upright to flat orientation for both materials due to the fracture mechanism and loading direction. Also, the manufacturing orientation and raster angles significantly affected the dimensional accuracy and total cost. Additionally, there was a big difference in the surface roughness depending on the manufacturing orientation and raster angle; perpendicular measurements increase surface roughness values. We aim to investigate the impact of flat, on-edge, and upright build orientations as well as raster angles on the total cost, tensile strength, dimensional accuracy, and surface roughness of PLA and ABS material through tensile experiments.
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来源期刊
CiteScore
1.80
自引率
14.30%
发文量
62
期刊介绍: "International Journal of Engineering Research in Africa" is a peer-reviewed journal which is devoted to the publication of original scientific articles on research and development of engineering systems carried out in Africa and worldwide. We publish stand-alone papers by individual authors. The articles should be related to theoretical research or be based on practical study. Articles which are not from Africa should have the potential of contributing to its progress and development.
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