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논문 기본 정보

자료유형
학술저널
저자정보
Jong Jung Lee (Pukyong National UNIV.) Sang Hyun Ahn (Pukyong National UNIV.) Young Whan Park (Pukyong National UNIV.)
저널정보
한국기계가공학회 한국기계가공학회지 한국기계가공학회지 제20권 제7호
발행연도
2021.7
수록면
105 - 112 (8page)

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초록· 키워드

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Reduction of weld distortions and increase in productivity are some of the major goals of the shipbuilding industry. To address these issues, many researchers have attempted to apply new welding processes. In the shipbuilding industry, steel is the candidate material of choice owing to its good weldability. However, conventional welding techniques are not feasible for avoiding welding problems. Tip-rotating arc welding is one of the high-efficiency welding process that has several advantages, such as high welding speed, high melting rate, low heat input, and less distortion. The present study investigates the influence of the welding variables on the weld characteristics of tip-rotating arc welding. Welding was performed using EH36 as the base metal and SM-70s as the filler metal, which are widely used in shipbuilding. Basic experiments were conducted to understand the effects of the major welding variables, such as welding and tip-rotating speeds. The distortion and mechanical properties of the optimal welding conditions were used to evaluate the tip-rotating arc welding performance. Consequently, the feasibility of the tip-rotating arc welding process for joining steel components was investigated, so that the optimized welding conditions could be applied directly to ship body welding to enhance the quality of the welded joints.

목차

ABSTRACT
1. Introduction
2. Tip-rotating Arc Welding Experiment
3. Experiment Results and Findings
4. Analysis of Mechanical Properties using Butt Welding
5. Conclusion
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UCI(KEPA) : I410-ECN-0101-2021-581-001874639