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논문 기본 정보

자료유형
학술저널
저자정보
Woo-hyeon, Choe (WOW Metal) Chan-woo, Jeong (WOW Metal) Ju-yong Park (Korea Maritime and Ocean University)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第38卷 第3號
발행연도
2020.6
수록면
248 - 253 (6page)

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초록· 키워드

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Plasma arc welding (PAW) is an arc welding process similar to gas tungsten arc welding, in which an electric arc is formed between a non-consumable tungsten electrode and the workpiece. When used for cutting, the plasma gas flow is increased instead of the PAW so that the deeply penetrating plasma jet cuts through the metal, and the molten metal is continuously removed as the cutting process progresses. A plasma is a gas heated to an extremely high temperature and ionized such that it becomes electrically conductive. Although very high temperatures are applied during the PAW process, the arc flame is narrow and deep and moves at a very high speed. Thus, only a small amount of heat is transferred to the weld. A filler metal can be used, depending on the joint conditions and the required mechanical and chemical properties of the materials, particularly for thick materials or gapped joints. Two modes of the plasmawelding technique were used in actual welding fabrication: the keyhole and melt-in modes for the root run and final run, respectively.

목차

Abstract
1. Introduction
2. Materials
3. Welding Work
4. Welding Result and Discussion
5. Conclusion
References

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