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논문 기본 정보

자료유형
학술저널
저자정보
한창민 (계명대학교) 최해운 (계명대학교)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第37卷 第4號
발행연도
2019.8
수록면
299 - 305 (7page)

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초록· 키워드

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Finite element analysis was used to predict the distribution of stress and deformation during laser welding of high speed impellers. FEM was used to analyze three cases, a lower tap fixed (Case I), a lower boundary fixed (Case II) and a lower boundary and upper tap fixed (Case III). As the applied pressure increased, the stress and deformation increased gradually for all cases. In Case III, where the restrained portion was large, the stress was much higher than Case I or II, however the maximum deformation in Case III was smaller than the other cases. The analysis determined that stress was reduced by deformation of a blade tab region that was unrestrained when pressure was applied to the blade. In addition, maximum stress was generated around the tabs, and it was found that the stress was concentrated on the shape of the corner portion. Analysis determined that stress and deformation are inversely proportional. Weld design can be optimized by considering these results. Stress and deformation can be minimized by optimizing the shape of the stressed part using the finite element method, and performing blade design and laser welding design accordingly.

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Abstract
1. 서론
2. 본론
3. 결과
4. 결과 분석 및 고찰
5. 결론
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UCI(KEPA) : I410-ECN-0101-2019-581-000961290