표면장력과 후압을 고려한 고에너지밀도 레이저 용접 공정해석
- Title
- 표면장력과 후압을 고려한 고에너지밀도 레이저 용접 공정해석
- Other Titles
- A study of high-power density laser welding process considering surface tension and recoil pressure
- Author
- 김우승
- Keywords
- laser welding(레이저 용접); free surface(자유표면); key hole(키홀); Knudsen layer(Knudsen 층)
- Issue Date
- 2004-11
- Publisher
- 대한기계학회
- Citation
- 대한기계학회 2004년 추계학술대회논문집, Page.1190-1195
- Abstract
- In this study, numerical investigation has been performed on the evolution of key-hole geometry during high-energy density laser welding process. Unsteady phase-change heat transfer and fluid flow with the surface tension and recoil pressure are simulated. To model the overheated surface temperature and recoil pressure considering subsonic/sonic vapor flow, the one-dimensional vaporization models proposed by Ganesh and Knight are coupled over liquid-vapor interface. It is shown that the present model predicts well both the vaporization physics and the fluid flow in the thin liquid layer over the other model.
- URI
- http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00572116https://repository.hanyang.ac.kr/handle/20.500.11754/154846
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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