利用正交实验检查超声波焊接接头的微观结构和机械特性

IF 1.9 4区 工程技术 Q2 Engineering
Teng Fan, Lun Zhao, Haixiong Wang, Zeshan Abbas, Muhammad Adnan, Md Shafiqul Islam, Sharon Kao-Walter
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引用次数: 0

摘要

在本文中,我们利用正交实验对 25 mm2 铜线和 T2 铜板在不同焊接参数下的超声波焊接性能进行了研究。这项工作的目的是探索操作参数对焊接结果的影响。使用一系列精密仪器对铜线与铜板接头的机械性能和微观结构进行了全面研究。其中包括万能拉伸机、电阻测量设备、扫描电子显微镜、电离辐射分析仪和温度测量工具。通过这种多方面的方法,对接头的整体特征和性能进行了详细分析。这有助于进一步了解接头的性能和耐用性。研究结果表明,焊接压力对焊点的影响最大。当焊接能量设定为 6000 焦耳、焊接振幅为 85%、焊接压力为 260 千帕时,参数组合达到最佳状态。在不同的焊接参数组合中,接头强度与焊接参数呈正相关,并且随着焊接参数的增加而增加。接头电阻随接头拉伸载荷的增加而减小,电导率可用于评估超声波焊接。研究发现,焊接接头是沿着从焊接工具头向内移动的方向逐渐形成的,呈现出有条不紊的成形过程。在焊接接头中观察到三种不同的失效模式,如接头拉出、接头撕裂和母线断裂。焊接过程中记录到的峰值温度为 373 ℃,这表明超声波焊接是一种固态连接。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Microstructural and Mechanical Characteristics Examination of Ultrasonically Welded Joints Using Orthogonal Experimentation

Microstructural and Mechanical Characteristics Examination of Ultrasonically Welded Joints Using Orthogonal Experimentation

In this paper, we present an investigation of ultrasonic welding performance for 25 mm2 copper wire and T2 copper plate across various welding parameters using orthogonal experimentation. The objective of this work was to explore the influence of operational parameters on the resulting welds. A comprehensive study of the mechanical properties and microstructure of the copper wire-to-copper plate joint was carried out using a series of sophisticated instruments. It includes a universal tensile machine, resistance measuring equipment, SEM, EDS and temperature measuring tool. This multifaceted approach enabled a detailed analysis of the joint's integral features and properties. This provides further insight into its performance and durability. Findings indicate that welding pressure has the most significant effect on welded joints. The optimal combination of parameters is achieved with the welding energy set at 6000 J, the welding amplitude at 85% and the welding pressure at 260 kPa. In different sets of welding parameters, joint strength is positively related to welding parameters and increases with increasing welding parameters. Joint resistance decreases with increasing joint tensile load and conductivity can be used to evaluate ultrasonic welding. It has been found that the development of the welded joint is achieved gradually in a direction moving inwards from the welding tool head, exhibiting a methodical forming process. Three distinct failure modes are observed in welded joints such as joint pullout, joint tearing and busbar breakage. The peak temperature during the welding process was recorded at 373 °C which indicates that the ultrasonic welding is a solid state connection.

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来源期刊
CiteScore
4.10
自引率
10.50%
发文量
115
审稿时长
3-6 weeks
期刊介绍: The International Journal of Precision Engineering and Manufacturing accepts original contributions on all aspects of precision engineering and manufacturing. The journal specific focus areas include, but are not limited to: - Precision Machining Processes - Manufacturing Systems - Robotics and Automation - Machine Tools - Design and Materials - Biomechanical Engineering - Nano/Micro Technology - Rapid Prototyping and Manufacturing - Measurements and Control Surveys and reviews will also be planned in consultation with the Editorial Board.
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