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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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Directed Energy Deposition에서 흄의 생성 원인 및 대책
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김강형, 정찬현, 정대용, 현승균
Korean J. Met. Mater.
2020;58(6):383-396. Published online 2020 May 14
DOI:
https://doi.org/10.3365/KJMM.2020.58.6.383
Abstract
Pores and cracks are known as the main defects in metal additive manufacturing (MAM), including directed energy deposition(DED). A gaseous fume is often produced by laser flash (instantaneous high temperature) during laser processing, which may cause various defects such as porosity, lack of fusion, inhomogeneity, low flowability and composition change,.....
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