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Very high cycle fatigue on gas metal arc butt-welded AA6061-T6 plates

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Abstract

In the automobile industry, there is a push to maximize the mileage of electric vehicles by using lightweight materials. Hence, the use of welded aluminum in electric vehicles is increasing, and there is a clear need for detailed characterization of the fatigue life of these welded parts. In this study, gas metal arc welded AA6061-T6 specimens were fabricated and an ultrasonic fatigue test method for ultra-high cycle fatigue testing was proposed. An S-N fatigue test curve of 109 cycles was obtained, with an infinite life (109 cycles) confirmed at 118 MPa and 105 cycle level fatigue life confirmed at 216 MPa.

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Acknowledgments

This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No.20206410100080) and also supported by the Ajou University research fund.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Ajou University, Suwon, 16499, Korea

    Iksu Kim, Moon G. Lee & Yongho Jeon

  2. School of Mechanical Engineering, Purdue University, West Lafayette, USA

    Martin Byung-Guk Jun

  3. School of Mechanical Engineering, Chungbuk National University, Cheongju, 28644, Korea

    Jungho Cho

Authors
  1. Iksu Kim
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  2. Moon G. Lee
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  3. Martin Byung-Guk Jun
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  4. Jungho Cho
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  5. Yongho Jeon
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Corresponding authors

Correspondence to Jungho Cho or Yongho Jeon.

Additional information

IkSu Kim is a master student in the Department of Mechanical Engineering, Ajou University, Suwon, Korea. His research interest is novel manufacturing processes and the effect on materials. He also interested in deep learning on novel manufacturing processes.

Moon Gu Lee received his B.S. degree in precision engineering and his M.S. and Ph.D. degrees in mechanical engineering from the Korea Advanced Institute of Science and Technology, Korea, in 1995, 1997, and 2003, respectively. He later became a Senior Researcher for Samsung Electronics and a Visiting Associate Professor at Harvard Medical School. He is currently a Professor in the Division of Mechanical Engineering, Ajou University, Suwon, Korea. His research interests include analysis, design, and control of high precision positioning systems and biomedical devices.

Martin B. G. Jun is a Professor of the School of Mechanical Engineering at Purdue University, West Lafayette, IN, USA. Prior to joining Purdue University, he was an Associate Professor at the University of Victoria, Canada. He received the B.Sc. and M.Sc. degrees in Mechanical Engineering from the University of British Columbia, Vancouver, Canada in 1998 and 2000, respectively. He then received his Ph.D. degree in 2005 from the University of Illinois at Urbana-Champaign in the Department of Mechanical Science and Engineering. His main research focus is on advanced multi-scale and smart manufacturing processes and technologies for various applications.

Jungho Cho received his Ph.D. at KAIST in 2007 and now he is a faculty of Chungbuk National University after working at Hyundai Motors and Ohio State University, USA for several years. His major is development of welding and joining techniques, welding physics and thermo-dynamical analysis of weld pool.

Yongho Jeon received his B.S. degrees in mechanical engineering from Ajou University, South Korea and the Illinois Institute of Technology, USA, in 2003. He received his M.S. and Ph.D. degrees from the University of Wisconsin, Madison, Wisconsin, USA, in 2005 and 2008, respectively. He later became a manufacturing researcher for Hyundai Motors. He is currently a Professor in the Department of Mechanical Engineering at Ajou University. His research interests are developing novel manufacturing processes using heat and vibration and the effect of material characteristics.

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Kim, I., Lee, M.G., Jun, M.BG. et al. Very high cycle fatigue on gas metal arc butt-welded AA6061-T6 plates. J Mech Sci Technol 37, 6649–6655 (2023). https://doi.org/10.1007/s12206-023-1136-8

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  • DOI: https://doi.org/10.1007/s12206-023-1136-8

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