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논문 기본 정보

자료유형
학술저널
저자정보
June Hyung Hwang (Hyundai NGV) Dong-Yoon Kim (Korea Institute of Industrial Technology) Insung Hwang (Korea Institute of Industrial Technology) Young-Min Kim (Korea Institute of Industrial Technology)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第41卷 第2號
발행연도
2023.4
수록면
112 - 122 (11page)

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초록· 키워드

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When the gas metal arc welding (GMAW) process is applied in the shipbuilding and heavy equipment industries, it is important to increase the amount of welding on the weld without defects. Application of the tandem GMAW process can reduce the man-hours increased owing to multipass and increase productivity. In shipbuilding and heavy equipment industry sites, the weldments are long and large; thus, a carriage-type bed is generally used. Accordingly, the overall lengths of the welding cables in the welding system are increased; thus, arc voltage drop occurs owing to the load voltages generated in the welding cables, and a robust bead cannot be obtained owing to spatters caused by short circuits. In this study, the voltage drop caused by the increase in cable lengths was compensated using a developed welding machine. By compensating for the voltage drop, it was possible to obtain a good quality bead by reducing the occurrence of spatter caused by short circuit. As a result of performing one pass welding using the asynchronous tandem GMAW process and the developed welding machine, it was possible to secure sufficient amount of welding required in the field and to obtain a sound bead appearance.

목차

Abstract
1. Introduction
2. Experimental Method
3. Experimental Results and Discussion
4. Conclusion
References

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