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A study on the properties of welding-line in aluminum extrusion process

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Abstract

This study is performed to evaluate the properties of welding-line on the Al6063-T6 porthole extrusion for the various reduction in area. The K-value can be used to determine whether the welding is well established on the extrusion. The K-value has been calculated using the results of the simulation. For the comparison, the extrusion is made with the porthole die, which is used to extrude hollow rectangle aluminum profile. After the extrusion experiment was performed, the die was repeatedly machined to decrease the reduction in area. Rectangle profiles with eight different thicknesses were extruded and the properties of welding-line were evaluated by tensile and impact test. Based on the results of the tests and the calculations, the improved mechanical properties could be obtained above a specific K-value.

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Authors and Affiliations

  1. Jeonbuk Division, Korea Institute of Industrial Technology, Jeonju, Jeollabuk-do, 54853, Korea

    Seung Chan Ma & Young Choi

  2. Department of Energy Storage/Conversion Engineering of Graduate School, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896, Korea

    Sang Don Mun

Authors
  1. Seung Chan Ma
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  2. Sang Don Mun
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  3. Young Choi
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Corresponding author

Correspondence to Young Choi.

Additional information

Seung Chan Ma received his B.S., M.S. degrees from Jeonbuk National University, Korea, in 2018 and 2021, respectively. His research interests simulation of metal forming using finite element analysis.

Sang Don Mun received the B.S. degree and M.S. degree in Precision Mechanical Engineering from Chonbuk National University, Korea, in 1991 and 1993, respectively. He then received the Ph.D. in Precision Mechanical Engineering at the same university in 1997. Dr. Mun is currently a Professor at the Division of Mechanical Design Engineering, and Energy Storage/Conversion Engineering at Jeonbuk National University in Jeonju, Korea. His research interests include magnetic abrasive finishing, tool wear, and micro machining.

Young Choi received his B.S., M.S. and Ph.D. degrees from Pusan National University, Korea, in 1993, 1995, 1999, respectively. He is currently a Principal Researcher at the Korea Institute of Industrial Technology in Korea. His research interests include simulation of metal forming, high energy rate forming and evaluating of material properties of metal.

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Ma, S.C., Mun, S.D. & Choi, Y. A study on the properties of welding-line in aluminum extrusion process. J Mech Sci Technol 36, 5939–5945 (2022). https://doi.org/10.1007/s12206-022-1110-x

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  • DOI: https://doi.org/10.1007/s12206-022-1110-x

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