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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Al 5052-H32 합금의 저항 점 용접 시 가압력 제어 방식에 따른 미세조직 및 용접특성 비교
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김원호, 김재훈, 전현욱, 김재원, 이은경, 지창욱
Korean J. Met. Mater.
2022;60(5):350-359. Published online 2022 Apr 22
DOI:
https://doi.org/10.3365/KJMM.2022.60.5.350
Abstract
Recently, lightweight vehicle bodies are in increasing demand to satisfy exhaust gas and environmental regulations around the world. In particular, aluminum alloys are widely used to manufacture lightweight parts, because of their excellent properties including corrosion resistance and mechanical properties. After the forming process, the welding process is important for.....
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A6014-T4 합금 소재의 저항 점 용접 시 용융 거동 및 전극 열화에 미치는 전극 패터닝 효과
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전현욱, 김재훈, 김재원, 이은경, 김양도, 지창욱
Korean J. Met. Mater.
2020;58(12):863-874. Published online 2020 Dec 4
DOI:
https://doi.org/10.3365/KJMM.2020.58.12.863
Abstract
In this study, the effects of electrode surface design on the resistance spot weldability and degradation of the electrode following resistance spot welding (RSW) of aluminum 6014-T4 alloy were investigated. A new patterning method that can be produced through repetitive pressurization was applied to the electrode, producing a lattice-like pattern.....
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Web of Science 3
Crossref 5
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핫스탬핑 열처리 온도가 Al-10% Si 도금 30MnB5 강의 점용접성에 미치는 영향
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손성국, 황연정, 이창욱, 유지홍, 최민수
Korean J. Met. Mater.
2019;57(12):778-786. Published online 2019 Oct 8
DOI:
https://doi.org/10.3365/KJMM.2019.57.12.778
Abstract
Hot stamping is the most efficient manufacturing process to produce high strength automotive parts with reduced springback. Recently, 30MnB5 steel has been developed for hot stamping steel which can provide above 1700 MPa. However, resistance spot weldability of this steel is insufficient due to the need for a large amount.....
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Web of Science 4
Crossref 4
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초고강도강 저항 점용접 연속타점시 전극의 국부적 합금화 현상이 용접품질 저하에 미치는 영향 연구
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김재원, Siva Prasad Murugan, 강남현, 박영도
Korean J. Met. Mater.
2019;57(11):715-725. Published online 2019 Nov 5
DOI:
https://doi.org/10.3365/KJMM.2019.57.11.715
Abstract
Evaluation of electrode degradation in resistance spot welding of 1180TRIP steel was carried out through an electrode life test, and weldability testing was performed by the measurement of the nugget size, the peak load analysis and the measurement of the electrode tip size at 30 intervals. Analysis of the change.....
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Web of Science 7
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Korean J. Met. Mater.
2019;57(11):708-714. Published online 2019 Oct 8
DOI:
https://doi.org/10.3365/KJMM.2019.57.11.708
Abstract
Resistance Element Welding (REW) is a novel processing technology developed to join dissimilar materials such as aluminum and steel. It uses an auxiliary steel rivet (element) inserted into an aluminum sheet that forms a resistance spot weld with the steel sheet, and the aluminum work piece is mechanically joined by.....
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Web of Science 5
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합금화 용융아연도금 핫스탬핑강의 자동차 차체 적용을 위한 부식 거동, 액상금속취화현상 및 점용접성 연구
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황연정, 이창욱, 신가영, 유지홍, 최민수
Korean J. Met. Mater.
2019;57(3):193-201. Published online 2019 Feb 8
DOI:
https://doi.org/10.3365/KJMM.2019.57.3.193
Abstract
The hot stamping process is beneficial for fabricating high strength automotive parts without spring back. To suppress high temperature oxidation and decarburization, it is necessary to coat the hot stamping steel. In the present work, the performance of galvannealed coated (GA) hot stamped steel was evaluated. During cyclic corrosion tests,.....
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Web of Science 6
Crossref 7
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