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논문 기본 정보

자료유형
학술저널
저자정보
Daekyu Park (Pukyong National University) Jehyoung Cho (Research Institute of Medium & Small Shipbuilding) Youngwhan Park (Pukyong National University)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第41卷 第3號
발행연도
2023.6
수록면
202 - 206 (5page)

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초록· 키워드

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GTA welding (GTAW) is a representative welding technique employed for pipe root gap welding. Although this technique allows the control of the current and wire feeding speed as independent variables, it is difficult to determine these variables to ensure appropriate quality. In the pipe root gap welding task, the parameters of automated welding applications are difficult to determine due to gap and misalignment. Accordingly, this study was conducted to examine changes in the modes of metal transfer according to the welding current and wire feeding speed. In the various processes of GTAW, changes in volume transfer form yield certain advantages and disadvantages, necessitating appropriate tuning procedures to maintain a desired quality. Changes in heat input ratio (HIR), which relates to the welding heat input (HI) and wire feeding speed, were observed to predict modes of metal transfer. According to changes in welding current and wire feeding speed, metal transfer was expressed as an index, and a regression equation was formulated to predict the modes of metal transfer through said index.

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

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