Generally, equipment or mechanical parts are worn out by abrasion, impact, erosion, and environmental corrosion. To reduce these losses, the welding that wears the surface of the material with abrasion or corrosion resistance is called overlay welding. Corrosion and high temperature oxidation are very important factors in overlay welding material selection because they have a great effect on wear rate. Typical equipment is made of carbon steel, stainless steel or a material that is not wear resistant. Therefore, overlay welding is applied to parts where the parts themselves are subject to severe wear or corrosion. The diffusion of chlorine and alkaline ash during the combustion process causes foiling, corrosion, and erosion in the water wall panel & tube which is a heat transfer device. In order to protect the water wall panel & tube from various chemical and physical phenomena occurring during the combustion process, heat-resistant alloy steel such as Inconel is overlay welded on the outer surface of carbon steel pipe. However, since the length of the water wall panel & tube is more than 7 meters, the deformation after overlay welding is very large and the straightening work requires a lot of time and money. Also, since cooling water flows through the pipe during welding, the temperature of the cooling water also affects the welding deformation. In this study, welding process sequence and coolant temperature are optimized to minimize welding deformation during overlay welding.
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ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
June 17–22, 2018
Madrid, Spain
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5122-7
PROCEEDINGS PAPER
Thermal Elasto-Plastic Analysis of Welding Sequence for Least Distortion of Overlay Welded Structure
Sungwook Kang,
Sungwook Kang
Korea Institute of Industrial Technology, Jinju, South Korea
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Jaewoong Kim,
Jaewoong Kim
Korea Institute of Industrial Technology, Gwangju, South Korea
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Dongjoo Kim,
Dongjoo Kim
Korea Institute of Industrial Technology, Jinju, South Korea
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Youngjae Jang,
Youngjae Jang
Hyundai Heavy Industries, Ulsan, South Korea
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Jaeyoung Cho
Jaeyoung Cho
Myeong-Jin TSR Co., Ltd., Ulsan, South Korea
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Sungwook Kang
Korea Institute of Industrial Technology, Jinju, South Korea
Jaewoong Kim
Korea Institute of Industrial Technology, Gwangju, South Korea
Dongjoo Kim
Korea Institute of Industrial Technology, Jinju, South Korea
Youngjae Jang
Hyundai Heavy Industries, Ulsan, South Korea
Jaeyoung Cho
Myeong-Jin TSR Co., Ltd., Ulsan, South Korea
Paper No:
OMAE2018-77546, V003T02A068; 9 pages
Published Online:
September 25, 2018
Citation
Kang, S, Kim, J, Kim, D, Jang, Y, & Cho, J. "Thermal Elasto-Plastic Analysis of Welding Sequence for Least Distortion of Overlay Welded Structure." Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. Volume 3: Structures, Safety, and Reliability. Madrid, Spain. June 17–22, 2018. V003T02A068. ASME. https://doi.org/10.1115/OMAE2018-77546
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