Purpose

This study aims to evaluate the impact breaking energy of the parts manufactured by the fused filament fabrication (FFF) method. The evaluation considers the use of the epoxy resin coating, different materials and different printing orientations.

Design/methodology/approach

The authors developed an experimental statistical design using 54 experimental trials. The experiments’ output variable is the impact break energy of the parts manufactured by the FFF method. The input variables for the experiments consist of an epoxy resin coating (XTC-3D®, generic resin and without resin coating), different filament materials (nylon + carbon fiber, polyethylene terephthalate and polycarbonate) and different printing orientations (flat, edge and vertical) used. The authors carried out the tests following the EN ISO 179-1.

Findings

The use of resin coating has a significant influence on the impact energy of parts manufactured using the FFF method. The resin coating increases the impact resistance of parts processed by FFF by almost 100% of the value as compared to the parts without a resin coating. Post-processing is useful on ductile materials and increases impact breaking energy at weak print orientations.

Originality/value

This research opens a new opportunity to improve the mechanical properties of parts manufactured using the FFF method. The use of a resin coating reinforces the parts in weak print orientation.

中文翻译：

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树脂涂层提高熔丝制造工艺件冲击强度的实验研究

目的

这项研究旨在评估通过熔丝制造（FFF）方法制造的零件的冲击破坏能。该评估考虑了环氧树脂涂层的使用，不同的材料和不同的印刷方向。

设计/方法/方法

作者使用54个实验试验开发了实验统计设计。实验的输出变量是通过FFF方法制造的零件的冲击破坏能量。实验的输入变量包括环氧树脂涂层（XTC-3D®，通用树脂和无树脂涂层），不同的长丝材料（尼龙+碳纤维，聚对苯二甲酸乙二醇酯和聚碳酸酯）和不同的印刷方向（平坦，边缘和垂直） ） 用过的。作者按照EN ISO 179-1进行了测试。

发现

树脂涂层的使用对使用FFF方法制造的零件的冲击能量有重大影响。与没有树脂涂层的零件相比，树脂涂层将FFF处理的零件的抗冲击性提高了几乎100％。后处理对易延展材料很有用，并在弱打印方向上增加了冲击破坏能量。

创意/价值

这项研究为改善使用FFF方法制造的零件的机械性能提供了新的机会。树脂涂层的使用增强了零件在弱印刷方向上的强度。