Fused Deposition Modeling (FDM) is an additive manufacturing technology to fabricate three-dimensional prototypes with complex geometries. The ultimate tensile strength and surface finish of the parts produced by FDM process are strongly related to the fabrication process parameters. So it is necessary to identify the optimal process parameters to improve the ultimate tensile strength and surface finish of the part. FDM process has been influenced by many process parameters and the process parameters such as raster angle, infill pattern and build orientation have been considered in this study to determine their influence on the response parameters such as ultimate tensile strength and surface roughness of Polylactic Acid (PLA)-Acrylonitrile Butadiene Styrene (ABS) blend. In this work, an experimental study has been validated using the response surface methodology and influence of the process parameters on response parameters has been analyzed using analysis of variance (ANOVA) method. Scanning Electron Microscope (SEM) images have been used to study the microstructure of the specimen at the fracture interface. The result has shown that infill pattern is the significant factor affecting the ultimate tensile strength. Surface roughness of the specimen has been found influenced by the build orientation followed by the infill pattern and raster angle.

中文翻译：

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工艺参数对PLA-ABS制件拉伸强度和表面质量的影响

熔融沉积建模 (FDM) 是一种增材制造技术，用于制造具有复杂几何形状的三维原型。FDM 工艺生产的零件的极限抗拉强度和表面光洁度与制造工艺参数密切相关。因此有必要确定最佳工艺参数以提高零件的极限抗拉强度和表面光洁度。FDM 工艺受到许多工艺参数的影响，本研究中考虑了光栅角度、填充图案和构建方向等工艺参数，以确定它们对聚乳酸 (PLA) 极限拉伸强度和表面粗糙度等响应参数的影响。 )-丙烯腈丁二烯苯乙烯 (ABS) 混合物。在这项工作中，使用响应面方法验证了一项实验研究，并使用方差分析 (ANOVA) 方法分析了过程参数对响应参数的影响。扫描电子显微镜 (SEM) 图像已用于研究试样在断裂界面处的微观结构。结果表明，填充图案是影响极限抗拉强度的重要因素。已发现试样的表面粗糙度受构建方向、填充图案和光栅角的影响。结果表明，填充图案是影响极限抗拉强度的重要因素。已发现试样的表面粗糙度受构建方向、填充图案和光栅角的影响。结果表明，填充图案是影响极限抗拉强度的重要因素。已发现试样的表面粗糙度受构建方向、填充图案和光栅角的影响。