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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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A Novel Al-Al
2
O
3
Non-Skid Composite Coating with Improved Wear Resistance Fabricated by Twin Wire Arc Spraying
Twin wire arc spray 공정을 통해 제작된 Al-Al
2
O
3
복합소재 미끄럼 방지 코팅의 우수한 마모 저항성
Hansol Kwon, Youngjin Park, Yongjin Kang, Dohyun Kim, Uk Hee Nam, Eungsun Byon권한솔, 박영진, 강용진, 김도현, 남욱희, 변응선
Korean J. Met. Mater.
2024;62(4):257-266. Published online 2024 Mar 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.4.257
Abstract
In this study, novel non-skid Al-Al
2
O
3
coatings with improved wear resistance were fabricated using twin wire arc spray (TWAS). TWAS Al coating was prepared as a reference sample and representative TWAS parameters (working distance, process gas pressure, arc current) were controlled to fabricate different Al-Al
2
O
3
coatings. The Al-Al
2
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3
coatings showed.....
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Effect of High-Power Laser Cleaning for Surface Contaminants Removal on SS304L
SS304L 표면 오염물질 제거를 위한 고출력 레이저 클리닝 영향 분석
Soojin Choi, Hyun Jong Yoo, Jiyeon Choi, Jiwhan Noh, Heeshin Kang, Sanghoon Ahn, Junsu Park, Philgong Choi, Dohyun Kim, Yeonggyu Kim, Byeongju Kim, Ikgeun Jeon, Jeng O Kim, Hyonkee Sohn, Kyunghan Kim, Changkyoo Park최수진, 유현종, 최지연, 노지환, 강희신, 안상훈, 박준수, 최필공, 김도현, 김영규, 김병주, 전익근, 김정오, 손현기, 김경한, 박창규
Korean J. Met. Mater.
2024;62(2):73-80. Published online 2024 Jan 30
DOI:
https://doi.org/10.3365/KJMM.2024.62.2.73
Abstract
In this study, artificially formed corrosion and paint layers on 304L stainless steel (SS304L) specimen were removed using a kilowatt level high-power Nd:YAG laser. A laser power of 1140 W and a pulse duration of 89 ns were used for the corrosion removal, and a laser power of 850 W.....
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Process Optimization for Dual Laser Beam Joining for Dissimilar Plastics
Suwon Kim, PilGong Choi, Soo Jin Choi, Sang Bae Han, Jiyeon Choi, Jeng O Kim, Hyonkee Sohn, Sanghoon Ahn, Jiwhan Noh, Heeshin Kang, Kwangyun Jung, Dohyun Kim, Hyun-Deok Kim, Changkyoo Park
Korean J. Met. Mater.
2022;60(6):432-439. Published online 2022 May 24
DOI:
https://doi.org/10.3365/KJMM.2022.60.6.432
Abstract
A dual laser beam joining process is introduced for joining dissimilar plastics. A customized laser head was built, and two different diode lasers with central wavelengths of 980 and 1940 nm were simultaneously applied to obtain PMMA/PC-1 and PC-2/ABS joints. Various experimental conditions were employed for the dual laser beam.....
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