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Geometric considerations for the 3D printing of components using fused filament fabrication
The International Journal of Advanced Manufacturing Technology ( IF 2.9 ) Pub Date : 2020-06-30 , DOI: 10.1007/s00170-020-05523-3
Julián Israel Aguilar-Duque , Jorge Luis García-Alcaraz , Juan Luis Hernández-Arellano

Demand in 3D printing products using fused filament fabrication (FFF) in industry has been growth a lot with 55% in development of prototypes, 43% in production, and 41% in conceptual models for testing. However, information regarding the manufacturing considerations of geometry-restricted components is still an opportunity area, generating printed components with quality defects. This article is aimed to present some characteristics in geometric components that should be considered during the developing process for components to be produced in FFF to avoid in quality defects. The methodology used considers three stages: first, the reproduction of basic geometric elements and a template that integrates elements with software design; second, the component analysis and the template with software for pre-processing of components, and third, the printing of a template for assumption validation identified in stage two. Findings obtained indicate that the spherical components are geometries with the greatest possibility of defect generation during the FFF printing process. The complexity of the template allowed to identify that the template orientation is a factor that generates defects; for example, with 0° orientation regarding the X axis generates 40,008 risk points for defect and for 30° orientation there are 6658 risk point defects. Therefore, it is advisable to consider avoid geometries associated with sphericity and cylindrical characteristics as possible in the design processes, since these geometries require specific processes to achieve the finishing quality.



中文翻译:

使用熔丝制造3D打印零件的几何考虑

工业界对使用熔丝制造(FFF)的3D打印产品的需求已大大增长,其中原型开发的55%,生产的43%和测试的概念模型的41%。但是,有关受几何限制的零件的制造考虑因素的信息仍然是一个机会领域,会产生带有质量缺陷的印刷零件。本文旨在介绍几何零件的一些特性,这些特性在开发过程中应以FFF生产,以避免质量缺陷。所使用的方法学包括三个阶段:第一,基本几何元素的复制以及将元素与软件设计集成在一起的模板;第二,组件分析和带有用于组件预处理的软件的模板,第三,打印第二阶段中确定的假设验证模板。获得的发现表明,球形组件是在FFF打印过程中最容易产生缺陷的几何形状。模板的复杂性允许识别模板方向是产生缺陷的因素;例如,相对于X轴的0°方向生成40,008个缺陷风险点,而对于30°方向,则存在6658个风险点缺陷。因此,建议在设计过程中尽可能避免与球形度和圆柱特性相关的几何形状,因为这些几何形状需要特定的过程才能达到精加工质量。获得的发现表明,球形组件是在FFF打印过程中最容易产生缺陷的几何形状。模板的复杂性允许识别模板方向是产生缺陷的因素;例如,相对于X轴的0°方向生成40,008个缺陷风险点,而对于30°方向,则存在6658个风险点缺陷。因此,建议在设计过程中尽可能避免与球形度和圆柱特性相关的几何形状,因为这些几何形状需要特定的过程才能达到精加工质量。获得的发现表明,球形组件是在FFF打印过程中最容易产生缺陷的几何形状。模板的复杂性允许识别模板方向是产生缺陷的因素;例如,相对于X轴的0°方向生成40,008个缺陷风险点,而对于30°方向,则存在6658个风险点缺陷。因此,建议在设计过程中尽可能避免与球形度和圆柱特性相关的几何形状,因为这些几何形状需要特定的过程才能达到精加工质量。模板的复杂性允许识别模板方向是产生缺陷的因素;例如,相对于X轴的0°方向生成40,008个缺陷风险点,而对于30°方向,则存在6658个风险点缺陷。因此,建议在设计过程中尽可能避免与球形度和圆柱特性相关的几何形状,因为这些几何形状需要特定的过程才能达到精加工质量。模板的复杂性允许识别模板方向是产生缺陷的因素;例如,相对于X轴的0°方向生成40,008个缺陷风险点,而对于30°方向,则存在6658个风险点缺陷。因此,建议在设计过程中尽可能避免与球形度和圆柱特性相关的几何形状,因为这些几何形状需要特定的过程才能达到精加工质量。

更新日期:2020-06-30
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