Nylon-CF is an important thermoplastic 3D printable material that can be used to develop high-quality functional parts with slight modifications in low-cost machines like material extrusion (MEX) technology. This paper investigates the tensile behavior of Nylon-CF samples produced by material extrusion. The influence of seven process parameters is studied on response characteristics. The Taguchi design is used to investigate the effect of process parameters on Young’s modulus and yield strength of specimens fabricated as per ASTM D-638. A two-level fractional factorial design supplements the L27 design results. The results show that the layer height, infill pattern, density, and raster angle significantly affect the tensile behavior. The apparent Young’s modulus is also significantly affected by the interaction between layer height, infill pattern, and infill density.

中文翻译：

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使用材料挤压制造的尼龙-CF 的拉伸行为分析

尼龙-CF 是一种重要的热塑性 3D 打印材料，可用于开发高质量的功能部件，只需对材料挤出 (MEX) 技术等低成本机器进行轻微修改即可。本文研究了通过材料挤出生产的尼龙-CF 样品的拉伸行为。研究了七个过程参数对响应特性的影响。田口设计用于研究工艺参数对按照 ASTM D-638 制造的样品的杨氏模量和屈服强度的影响。两水平部分因子设计补充了 L27 设计结果。结果表明，层高、填充图案、密度和光栅角度显着影响拉伸行为。表观杨氏模量还受到层高、填充图案和填充密度之间相互作用的显着影响。