基于3D打印的轻量化轴类零件内部结构设计与研究

Internal Structure Design and Research of Lightweight Axial Parts Based on 3D Printing

随着科技不断发展和进步,零件的轻量化设计是机械制造业的发展趋势。在保证零件强度、韧性、精度、刚度等基本性能的基础上,将零件内部实体结构设计变更为三角型、圆型、网型加劲肋结构,通过利用UG软件对轻量化轴类零件进行建模,生成STL文件,利用3D打印技术进行内部结构复杂零件的加工制造,利用电液伺服压力试验机进行力学试验并对试验数据进行分析,得出轻量化轴类零件内部结构最优化设计为网型结构。这一结论的得出,在实现零件加工节能、节材和环保的基础上,为零件轻量化设计及研究的进一步实施提供了理论基础。

As the continuous development and progress of science and technology, the lightweight design of parts is an imperative trend of machinery manufacturing. On the basis of ensuring the basic properties of parts such as strength, toughness, precision and stiffness, the internal solid structural design of parts is changed to the stiffened rib construction of triangular, circular, and network. Modeling of the lightweight axial parts is carried out by using the UG software to generate the STL files;manufacturing of parts with complex internal structure is conducted by using the3D printing technology;and the electro-hydraulic servo universal testing machine is applied for the mechanical experiment and analysis of the experimental data. It is concluded that the internal structure optimization design of lightweight axial parts is network structure. By this conclusion, based on the parts manufacturing of energy saving, material saving and environmental protection, it provides a theoretical basis for the further implementation of the lightweight design and research of parts.