FDM 3D打印工艺对轻质蜂巢结构机械性能的影响

The Influence of FDM 3D Printing Process on the Mechanical Properties of Lightweight Honeycomb Structure

本文介绍了FDM 3D打印蜂巢结构的制造工艺,并指出了3D打印工件与传统方法制造的工件之间的差异,以及在制造过程中产生微缺陷的原因。蜂巢结构的力学测试实验具体说明了3D打印过程中产生的微观结构对蜂巢结构的力学性能和行为的影响。比较三维打印和传统方法制造的蜂巢结构的能量吸收性能,结果表明常规3D打印蜂巢结构能量吸收性能较差,但3D打印却可以轻易制造一些传统制造方法难以制造的具有优于传统制造蜂巢结构吸能性能的复杂蜂巢结构。

In this article, the manufacturing process of FDM 3D printed honeycomb structure is introduced, and also the differences between the 3D printed work pieces and the work pieces manufactured with traditional methods, the reasons for generating these micro defects in process is indicated. The mechanical test experiments of honeycomb structures specifically illustrate the impact of the mi-crostructure caused by the 3D printing process on the mechanical properties and behavior of the honeycomb structure and compare the energy absorption performance of the honeycomb structure manufactured by 3D printing and traditional methods. The results of these experiments show that the stretch-oriented behavior of the honeycomb structure manufactured by 3D printing is no longer obvious. The mechanical properties are improved or decreased according to the geometry of the structure, and the energy absorption performance is also effected.