Purpose

The purpose of this paper is to determine the optimum nozzle diameter for parts production with polylactic acid using a three-dimensional printer. The additive manufacturing method used was fused filament fabrication.

Design/methodology/approach

Designers and researchers have focused on the effects of these parameters on part strength. Additionally, production time is one of the disadvantages of this manufacturing method that researchers are trying to overcome. The production parameters that stand out at this point are nozzle diameter and layer thickness.

Findings

As a result of the study, it was determined that the increased nozzle diameter led to increased part strength. At the same time, layer thickness had the most significant effect on surface quality. The increased nozzle diameter and part density led to decreased production time. It was concluded that larger nozzle diameter and lower layer thickness should be used for parts with superior properties.

Research limitations/implications

The experimental printing parameters used in the study were nozzle diameter (0.2, 0.4, 0.6, 0.8, 1.0 and 1.2 mm), layer thickness (0.1, 0.2 and 0.3 mm) and printing orientation (0°, 45° and 90°). The effects of printing parameters on part strength, dimensional accuracy, surface quality and part density were analyzed experimentally.

Originality/value

The effects of several printing parameters have been examined in the literature. However, the effect of different nozzle diameters has been ignored. There are limited experimental studies that examine the effect of nozzle diameter on mechanical properties, surface roughness, dimensional quality and production time. In this regard, the results obtained from various nozzle diameters used in this study will significantly contribute to the literature.

中文翻译：

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基于喷嘴直径的3D打印机最佳生产参数的确定

目的

本文的目的是确定使用 3D 打印机使用聚乳酸生产零件的最佳喷嘴直径。使用的增材制造方法是熔丝制造。

设计/方法/方法

设计人员和研究人员关注这些参数对零件强度的影响。此外，生产时间是研究人员试图克服的这种制造方法的缺点之一。此时突出的生产参数是喷嘴直径和层厚。

发现

作为研究的结果，确定增加的喷嘴直径导致增加的部件强度。同时，层厚对表面质量的影响最为显着。增加的喷嘴直径和零件密度导致生产时间减少。得出的结论是，较大的喷嘴直径和较低的层厚应该用于具有优异性能的部件。

研究限制/影响

研究中使用的实验打印参数是喷嘴直径（0.2、0.4、0.6、0.8、1.0 和 1.2 毫米）、层厚（0.1、0.2 和 0.3 毫米）和打印方向（0°、45° 和 90°）。通过实验分析了印刷参数对零件强度、尺寸精度、表面质量和零件密度的影响。

原创性/价值

在文献中已经检查了几个印刷参数的影响。但是，忽略了不同喷嘴直径的影响。检验喷嘴直径对机械性能、表面粗糙度、尺寸质量和生产时间的影响的实验研究有限。在这方面，从本研究中使用的各种喷嘴直径获得的结果将大大有助于文献。