• 제목/요약/키워드: 금속액적 적층

검색결과 2건 처리시간 0.019초

레이저를 이용한 균일 금속액적 적층에 관한 연구 (A Study on the Uniform Metal-Droplet Deposition Using Laser)

  • 유성복;김용욱;양영수
    • 한국정밀공학회:학술대회논문집
    • /
    • 한국정밀공학회 2002년도 추계학술대회 논문집
    • /
    • pp.667-670
    • /
    • 2002
  • Uniform metal-droplet deposition using laser is analyzed. Using the variation principle and modeling the semi-solid phase as a non-Netwonian slurry, this model can greatly save the computational expenses that conventional numerical procedures have suffered from. The simulation results revealed that the developed model could reasonably describe the collision behavior of molten metal with solid surface. Simulations were made with variation of the falling distance and time.

  • PDF

레이저를 이용한 금속액적 적층시 온도분포와 잔류응력 해석 (Analysis of Temperature Distribution and Residual Stress in Deposition Process of Metal Droplet by Using Laser Beam)

  • 윤진오;양영수
    • 한국정밀공학회지
    • /
    • 제22권3호
    • /
    • pp.187-193
    • /
    • 2005
  • The temperature distribution of the deposited droplet was predicted by using the finite element analysis and it was assumed that the droplet was axisymmetrical model. The analysis of residual stress was performed with the temperature data, which is obtained from the result. Axisymmetric droplet is deposited three times to consider the actual phenomenon of droplet deposition. The analysis of the temperature distribution is respectively performed whenever the axisymmetric droplet is laminated and the residual stresses of the laminated axisymmetric droplet are calculated with the value of the temperature distribution.