在椅子施工中对3D打印连接器的评估:与传统的形形关节进行比较研究
Antoniu Nicolau1, Marius Nicolae Baba2, Camelia Cerbu2
1Faculty of Furniture Design and Wood Engineering, Transilvania University of Brasov, B-dul Eroilor, nr. 29, 500036 Brasov, Romania.
Materials (Basel, Switzerland)
|January 11, 2025
概括
这项研究探讨了用聚乳酸 (PLA) 制成的3D打印连接器取代传统的椅子关节. 3D打印连接器的机械性能与传统连接器相当,提供了一种新的制造方法.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 制造业 制造技术 制造技术
背景情况:
- 传统的L型角关节在家具中,如椅子,通常使用和方法构建.
- 这些传统的关节可能是劳动密集型的,在现代制造业中可能存在局限性.
- 探索替代连接技术对于推进家具设计和生产至关重要.
研究的目的:
- 为了研究用3D打印连接器替换传统的L型角连接器在椅子建造中的可行性.
- 为了评估3D打印连接器的机械性能,这些连接器是使用聚乳酸 (PLA) 制造的化丝制造 (FFF).
- 为了比较3D打印连接器的性能与椅子原型中的传统接接.
主要方法:
- 3D打印连接器的设计和制造是使用黑色聚乳酸 (PLA) 合丝制造 (FFF) 进行的.
- 使用非线性有限元法 (FEM) 分析来研究关节成员的应力和位移.
- 椅子原型是使用3D打印连接器和传统的形形接头,用木 (Fagus sylvatica L.) 构建的.
- 数字图像相关性 (DIC) 用于排位分析,并根据EN 1728:2012进行静态负载测试 (座椅和靠背).
主要成果:
- 3D打印的连接器的机械性能与传统的接式连接器相当.
- 带有3D打印连接器的椅子显示位移略高 (0.6毫米X轴,1.1毫米Y轴),但在15kN负载下没有故障.
- 所有椅子原型成功通过了座椅和靠背的标准静态负荷测试,满足EN 1728:2012的要求,没有结构故障.
结论:
- 3D打印连接器为椅子制造中的传统关节提供了一种可行且机械上健全的替代方案.
- 这种创新方法在家具行业内具有更广泛应用的潜力.
- 该研究验证了FFF和PLA用于创建符合行业标准的功能家具组件的使用.
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