Maggiore Sofia, Banea Mariana D, Stagnaro Paola, Luciano Giorgio
Dipartimento di Chimica e Chimica Industriale (DCCI), University of Genova, Via Dodecaneso 31, 16146 Genova, Italy.
Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"-CNR, Via De Marini 16, 16149 Genova, Italy.
Polymers (Basel). 2021 Nov 16;13(22):3961. doi: 10.3390/polym13223961.
Hybrid joining (HJ) is the combination of two or more joining techniques to produce joints with enhanced properties in comparison to those obtained from their parent techniques. Their adoption is widespread (metal to metal joint, composite to composite and composite to metal) and is present in a vast range of applications including all industrial sectors, from automotive to aerospace, including naval, construction, mechanical and utilities. The objective of this literature review is to summarize the existing research on hybrid joining processes incorporating structural adhesives highlighting their field of application and to present the recent development in this field. To achieve this goal, the first part presents an introduction on the main class of adhesives, subdivided by their chemical nature (epoxy, polyurethane, acrylic and cyanoacrylate, anaerobic and high-temperature adhesives) The second part describes the most commonly used Hybrid Joining (HJ) techniques (mechanical fastening and adhesive bonding, welding processes and adhesive bonding) The third part of the review is about the application of adhesives in dependence of performance, advantage and disadvantage in the hybrid joining processes. Finally, conclusions and an outlook on critical challenges, future perspectives and research activities are summarized. It was concluded that the use of hybrid joining technology could be considered as a potential solution in various industries, in order to reduce the mass as well as the manufacturing cost.
混合连接（HJ）是将两种或更多连接技术相结合，以制造出与采用单一母体技术所获得的接头相比性能更优的接头。它的应用十分广泛（金属与金属连接、复合材料与复合材料连接以及复合材料与金属连接），涵盖了众多应用领域，包括所有工业部门，从汽车到航空航天，还包括海军、建筑、机械和公用事业等。本文献综述的目的是总结关于包含结构胶粘剂的混合连接工艺的现有研究，突出其应用领域，并介绍该领域的最新进展。为实现这一目标，第一部分介绍了胶粘剂的主要类别，并按其化学性质进行细分（环氧树脂、聚氨酯、丙烯酸酯和氰基丙烯酸酯、厌氧型和高温胶粘剂）；第二部分描述了最常用的混合连接（HJ）技术（机械紧固与胶粘剂粘结、焊接工艺与胶粘剂粘结）；综述的第三部分是关于胶粘剂在混合连接工艺中的应用，依据其性能、优缺点展开。最后，总结了结论以及对关键挑战、未来前景和研究活动的展望。得出的结论是，混合连接技术的应用可被视为各行业中一种潜在的解决方案，有助于减轻重量并降低制造成本。
