Double-sided self-pierce riveting: rivet geometry optimization

IF 2.6 3区材料科学 Q2 ENGINEERING, MANUFACTURING International Journal of Material Forming Pub Date : 2023-05-26 DOI:10.1007/s12289-023-01760-5

Rafael M. Afonso, Luís M. Alves

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Abstract

Important developments have been achieved for self-pierce riveting with the utilization of a double-sided tubular rivet that is able to join sheets of similar and dissimilar materials with different and larger thicknesses, while remaining hidden in-between the sheets after the joining process is completed. Nevertheless, the performance of those joints can still be improved by an optimization of the rivet parameters, mainly the chamfered angle of the rivet ends and the ratio between the initial height and thickness of the rivet. In this paper, the correct parameter combination is established by the performance of the obtained joint to shear destructive tests, the requirements of force and energy, as well as the dimension of the protuberance produced above the sheets surface. The influence of the introduction of an additional rivet in the overall performance of the mechanical joint is also discussed. Joints of different thinner and thicker sheets are analysed, as well as the combination between those thicknesses, to extend the range of applications of the new joining by forming process.

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双面自孔铆接:铆钉几何优化

采用双面管状铆钉的自穿孔铆接技术取得了重要进展，这种铆钉能够连接具有不同厚度的相似和不同材料的板材，同时在连接过程完成后仍然隐藏在板材之间。然而，这些接头的性能仍然可以通过优化铆钉参数来改善，主要是铆钉两端的倒角和铆钉的初始高度与厚度之比。本文根据所得到的节点抗剪破坏性能、力能要求以及板料表面隆起的尺寸，确定了正确的参数组合。文中还讨论了引入附加铆钉对机械连接整体性能的影响。分析了不同薄板和厚板的连接，以及这些厚度之间的组合，以扩大成形新连接的应用范围。

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来源期刊

International Journal of Material Forming ENGINEERING, MANUFACTURING-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.10

自引率

4.20%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal publishes and disseminates original research in the field of material forming. The research should constitute major achievements in the understanding, modeling or simulation of material forming processes. In this respect ‘forming’ implies a deliberate deformation of material. The journal establishes a platform of communication between engineers and scientists, covering all forming processes, including sheet forming, bulk forming, powder forming, forming in near-melt conditions (injection moulding, thixoforming, film blowing etc.), micro-forming, hydro-forming, thermo-forming, incremental forming etc. Other manufacturing technologies like machining and cutting can be included if the focus of the work is on plastic deformations. All materials (metals, ceramics, polymers, composites, glass, wood, fibre reinforced materials, materials in food processing, biomaterials, nano-materials, shape memory alloys etc.) and approaches (micro-macro modelling, thermo-mechanical modelling, numerical simulation including new and advanced numerical strategies, experimental analysis, inverse analysis, model identification, optimization, design and control of forming tools and machines, wear and friction, mechanical behavior and formability of materials etc.) are concerned.