Additive manufacturing incorporates the utilization of polymers with additives to print 3D specimens in layers. FDM (fused deposition modelling) technique in AM (additive manufacturing) has gained much attention in recent years because of its ability to make complex shapes with great design flexibility. To explore the possibilities with new design pattern specimens with various percent infills is the need of the hour. This paper presents an investigation on the tensile properties of ABS, PLA, and CF (15% by weight fraction) reinforced with PLA specimens. Herein, to print the specimen, a newly triangular pattern is used in the gauge length with different infill percentages oriented at 0°, 45°, and 90°. The motivation is to understand the role of a pattern on mechanical properties. The analysis revealed that the reduction in percent strength corresponding to percent material removed from a particular infill is much less than expected. Thus fabricating a part in a specific pattern may lead to material saving and cost reduction. Besides, printing orientation also played a significant role in determining the ultimate strength. 0° orientation for maximum cases led to the highest strength, whereas 45° was the poorest printing orientation. As expected all the properties got enhanced with increasing infill percentages. Findings in line with the previous work revealed PLA + CF with the highest tensile strength while ABS has the least strength. PLA exhibited the largest Elastic modulus among the three materials. The SEM images in fracture morphology of the specimens indicated the bonding between the CF with PLA and failed layers.

增材制造结合了聚合物和添加剂的使用，以分层打印 3D 样本。AM（增材制造）中的 FDM（熔融沉积建模）技术近年来备受关注，因为它能够以极大的设计灵活性制作复杂的形状。探索具有不同填充百分比的新设计图案标本的可能性是一个小时的需要。本文研究了用 PLA 试样增强的 ABS、PLA 和 CF（15% 重量分数）的拉伸性能。在这里，为了打印样品，在标距中使用了一个新的三角形图案，在 0°、45° 和 90° 方向上具有不同的填充百分比。动机是了解图案对机械性能的作用。分析表明，与从特定填充物中去除的材料百分比相对应的强度百分比下降远低于预期。因此，以特定模式制造零件可以节省材料和降低成本。此外，印刷方向在决定最终强度方面也发挥了重要作用。最大情况下的 0° 取向导致最高强度，而 45° 是最差的印刷取向。正如预期的那样，所有特性都随着填充百分比的增加而增强。与之前工作一致的发现表明 PLA + CF 的拉伸强度最高，而 ABS 的强度最低。PLA 在三种材料中表现出最大的弹性模量。样品断裂形态的 SEM 图像表明 CF 与 PLA 和失效层之间的结合。