Version 1
: Received: 22 May 2023 / Approved: 23 May 2023 / Online: 23 May 2023 (05:24:10 CEST)
How to cite:
Teyeb, A.; Salimi, M.; El Masri, E.; Hoque, S.; Carr, P.; Balachandran, W.; Gan, T.H. On the Use of Low-Intensity Ultrasonic Vibration for Enhancing the Laser Welding. Preprints2023, 2023051580. https://doi.org/10.20944/preprints202305.1580.v1
Teyeb, A.; Salimi, M.; El Masri, E.; Hoque, S.; Carr, P.; Balachandran, W.; Gan, T.H. On the Use of Low-Intensity Ultrasonic Vibration for Enhancing the Laser Welding. Preprints 2023, 2023051580. https://doi.org/10.20944/preprints202305.1580.v1
Teyeb, A.; Salimi, M.; El Masri, E.; Hoque, S.; Carr, P.; Balachandran, W.; Gan, T.H. On the Use of Low-Intensity Ultrasonic Vibration for Enhancing the Laser Welding. Preprints2023, 2023051580. https://doi.org/10.20944/preprints202305.1580.v1
APA Style
Teyeb, A., Salimi, M., El Masri, E., Hoque, S., Carr, P., Balachandran, W., & Gan, T.H. (2023). On the Use of Low-Intensity Ultrasonic Vibration for Enhancing the Laser Welding. Preprints. https://doi.org/10.20944/preprints202305.1580.v1
Chicago/Turabian Style
Teyeb, A., Wamadeva Balachandran and Tat- Hean Gan. 2023 "On the Use of Low-Intensity Ultrasonic Vibration for Enhancing the Laser Welding" Preprints. https://doi.org/10.20944/preprints202305.1580.v1
Abstract
This paper investigates the use of contactless power ultrasonic excitation to decrease the electrical impedance of the weld in laser welding. The literature extensively documents the impact of em-ploying contact power ultrasonic excitation on the microstructure morphology and refinement of grain in the weld. This study involves characterizing an industrial High Power Ultrasound Transducer (HPUT) by determining the optimal distance and angle for contactless excitation of the fusion zone in the weld, aiming to achieve the maximum amplitude. Subsequently, the transducer is integrated into the laser welding system, resulting in the creation of an ultrasonic-assisted welding system. To find the improvement due to the contactless vibration assistance, the welding area was char-acterised by an impedance ohmmeter device. The results indicate an approximately 6 % im-provement in the welding quality in terms of the impedance value, an important parameter for battery pack welding. In response to the issue of overheating in the industrial transducer during prolonged welding operations, an alternative transducer was proposed to overcome this challenge. Further investigations are carried out by the alternative transducer to find the effect of different wave types, namely, shear and compressional waves, on the welding quality. The contact vibration can excite the plate approximately 50 times higher in acceleration amplitude than contactless ex-citation. Nevertheless, enhancements of 10% and 6% are observed in the impedance value when utilising compressional and shear waves, respectively, as compared to the results obtained with contactless vibration.
Keywords
Low intensity ultrasound vibration; ultrasonic assistance welding; high power ultrasound trans-ducer
Subject
Engineering, Industrial and Manufacturing Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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