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논문 기본 정보

자료유형
학술저널
저자정보
Michael de Leon (Andong National University) Hyung‑Seop Shin (Andong National University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.29 No.4
발행연도
2023.4
수록면
1,079 - 1,094 (16page)
DOI
10.1007/s12540-022-01271-z

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초록· 키워드

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Recently, battery capacity and performance improvements have become the most important issues for improving the performanceof electric vehicles. Improvement of the aluminum and copper junctions used as battery tab materials is also required.The dissimilar tab materials are connected either in series or parallel to deliver the required battery power and capacity tothe vehicle. Ultrasonic welding is increasing in popularity for joining dissimilar materials, and the automotive industry islikely to benefit the most. However, the industry is dealing with variations in joint quality due to the numerous weldingparameters involved, such as the welding time, vibration amplitude, welding pressure, etc. Therefore, in this study, an appropriatedesign-of-experiment method was used to optimize the selected welding parameters with a reduced number of testsin terms of weld strength quality (either under lap-shear or T-peel tests) and electrical joint resistance. The signal-to-noiseratio and strength-reduction ratio analyses were employed to investigate the influence of different welding parameters foreach joint-quality category and to predict the optimum welding parameters within the limits of the parameters studied. Theanalyses were successful and effective in identifying the most influential welding parameter for each category. The resultsof analyses and predictions generated were satisfactorily comparable with the validation experiment results.

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