An investigation of the ultrasonic joining process parameters effect on the mechanical properties of metal-composite hybrid joints
An investigation of the ultrasonic joining process parameters effect on the mechanical properties of metal-composite hybrid joints
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DOI：
10.1007/s40194-020-00927-x
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发表时间：
2020-05-27
影响因子：
2.1
通讯作者：
Amancio-Filho, S. T.
中科院分区：
文献类型：
--
作者：
Feistauer, E. E.;dos Santos, J. F.;Amancio-Filho, S. T.
超声波连接工艺是最近提出的一种用于连接全厚度增强金属-复合材料混合结构的替代概念。采用Box-Behnken试验设计，研究了连接工艺参数对Ti-6Al-4V-玻璃纤维增强聚醚酰亚胺搭接接头力学性能的影响。通过响应面法和方差分析，阐明了连接能量、超声焊极振幅和连接压力对极限搭接剪切力的单独和组合影响。作为这项研究的结果，得到了一组优化的连接参数，以产生高极限搭接剪切力的接头。得到的可靠的简化模型（R-2 = 82%）显示连接能量（25.3%）和超声发生器振荡幅度（21.2%）对接头力学性能的主要影响。双向相互作用响应面被用来支持策略，以优化最大极限搭接剪切力。通过比较在这项工作中产生的优化的接头条件与先前公布的结果，最终搭接剪切力的79%的改善，从而证明了所提出的工艺优化程序的潜力。
The ultrasonic joining process was recently introduced as an alternative concept to join through-the-thickness reinforced metal-composite hybrid structures. In this work, the investigation of joining process parameters effect on the joint mechanical performance of Ti-6Al-4V-glass-fiber-reinforced polyetherimide overlap joints was carried out by Box-Behnken design of experiments. The individual and combined effects of joining energy, sonotrode oscillation amplitude, and joining pressure on the ultimate lap shear force were elucidated by response surfaces method and analysis of variance. As a result of this study, a set of optimized joining parameters were obtained to produce joints with high ultimate lap shear force. The obtained reliable reduced model (R-2 = 82%) displays a major influence of joining energy (25.3%) and sonotrode oscillation amplitude (21.2%) on the joint mechanical performance. Two-way interaction response surfaces were used to support strategies to optimize the maximum ultimate lap shear force. By comparing the optimized joint condition produced in this work with previously published results an improvement of 79% in ultimate lap shear force was attained, thereby, proving the potential of the proposed process optimization procedure.