增材制造的机械强度和通过结构粘合剂连接的标准聚合物组件
Andrea Spaggiari1, Simone Orlandini1
1Department of Science and Methods for Engineering, University of Modena and Reggio Emilia, Via G. Amendola 2-Pad. Buccola, 42122 Reggio Emilia, Italy.
Polymers
|November 9, 2024
概括
这项研究表明,结构粘合剂有效地将3D打印的聚合物部件与标准塑料组件相结合. 这种混合方法可以实现更大,更具成本效益的组件,其机械性能与基础材料相提并论.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 增材制造 (AM) 允许复杂的几何形状,但在构建尺寸上是有限的.
- 挤压塑料零件提供结构完整性和成本效益.
- 混合组件将AM的灵活性与传统零件的强度相结合.
研究的目的:
- 评估混合组件的机械性能,将AM聚合物部件与使用结构粘合剂的标准塑料部件连接在一起.
- 评估这些混合接头中的刚性和硬化烯酸合剂的性能.
- 为了证明使用粘合剂来创建更大的混合组件的可行性.
主要方法:
- 结合数值和实验分析的针领接头.
- 用烯酸粘合剂粘合的现实混合复杂接头的测试.
- 使用的材料:ABS (3D打印),PVC (标准),刚性烯酸粘合剂,硬化烯酸粘合剂.
主要成果:
- 针领接头显示粘合性故障,平均剪切应力为11.5 MPa (刚性) 和5.22 MPa (硬化).
- 硬度值为4449N/mm (刚性) 和3649N/mm (硬化) 的针领接头.
- 粘合剂成功地实现了结构连接所需的承载能力,与传统制造的部件相匹配.
结论:
- 结构粘合剂是连接AM和标准塑料零件的可行方法.
- 这种混合方法通过整合具有成本效益的挤压段来扩大3D打印组件的尺寸潜力.
- 该技术可以使用易于获得的材料来创建更大,高性能的混合动力部件.
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