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用于热塑性塑料的搅拌摩擦多点焊接框架。

A framework for friction stir multi-spot welding for thermoplastics.

作者信息

Mourad Abdel-Hamid I, Omira Sawsan, Al-Ali Shaikha Ismaeel, Alsbeihi Alisar Kamal, Alketbi Mouna Salem Afair, Iftikhar Syed Haris, Shahid Imad, Aljarrah Osamah Mohammad, Cherupurakal Nizamudeen

机构信息

Mechanical and Aerospace Engineering Department, United Arab Emirate University, Al Ain, UAE.

National Water and Energy Centre, United Arab Emirate University, Al Ain, UAE.

出版信息

Sci Rep. 2025 Jul 31;15(1):27943. doi: 10.1038/s41598-025-13076-2.

DOI:10.1038/s41598-025-13076-2
PMID:40745210
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12313862/
Abstract

Friction stir spot welding (FSSW) has shown promising potential for joining sheets and other geometries of metals as well as polymers. For thermoplastic materials, especially carbon black reinforced high-density polyethylene (HDPE-CB), the FSSW technique has shown promising results. However, in the published literature, most of the FSSW studies on thermoplastic materials have focused on single-spot joints. The current paper aims to investigate and develop a framework for multi-spot based FSSW joints. Based on the study, it is evident that the strength of the weld increases with the number of weld spots, and the weld direction plays a crucial role in determining weld performance. The double-side weld configuration of T4 weld spots achieved the maximum peak load of 5207 N. Additionally, edge distance and weld spacing were found to significantly influence peak load, demonstrating a proportional relationship. Overall, this study pioneers the investigation of weld spot inclination and spacing in multi-spot based FSSW of thermoplastic polymers, providing insights into their influence on joint strength and failure mechanisms. The findings highlight critical role of weld alignment and optimized spacing in enhancing load distribution and maximizing the tensile performance of lap joints.

摘要

搅拌摩擦点焊（FSSW）在连接金属板材及其他形状的金属以及聚合物方面已展现出良好的潜力。对于热塑性材料，尤其是炭黑增强高密度聚乙烯（HDPE-CB），搅拌摩擦点焊技术已取得了令人满意的成果。然而，在已发表的文献中，大多数关于热塑性材料的搅拌摩擦点焊研究都集中在单点焊接接头上。本文旨在研究并开发一种基于多点的搅拌摩擦点焊连接框架。基于该研究，很明显焊缝强度会随着焊点数量的增加而提高，并且焊接方向在决定焊接性能方面起着关键作用。T4焊点的双面焊接配置实现了5207 N的最大峰值载荷。此外，发现边缘距离和焊缝间距对峰值载荷有显著影响，呈现出比例关系。总体而言，本研究率先对热塑性聚合物多点搅拌摩擦点焊中的焊点倾斜度和间距进行了研究，深入了解了它们对接头强度和失效机制的影响。研究结果突出了焊缝对齐和优化间距在增强搭接接头载荷分布及最大化拉伸性能方面的关键作用。

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本文引用的文献

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Heliyon. 2024 Sep 3;10(17):e36962. doi: 10.1016/j.heliyon.2024.e36962. eCollection 2024 Sep 15.
2
Effect of Friction Stir Welding Techniques and Parameters on Polymers Joint Efficiency-A Critical Review.搅拌摩擦焊接技术及参数对聚合物接头效率的影响——综述
Polymers (Basel). 2021 Jun 23;13(13):2056. doi: 10.3390/polym13132056.
3
A Comprehensive Review on Optimal Welding Conditions for Friction Stir Welding of Thermoplastic Polymers and Their Composites.
热塑性聚合物及其复合材料搅拌摩擦焊最佳焊接条件的综合综述
Polymers (Basel). 2021 Apr 8;13(8):1208. doi: 10.3390/polym13081208.