• 제목/요약/키워드: Forced Conqection

검색결과 1건 처리시간 0.014초

유한 요소법을 이용한 $CO_2$아아크 용접부의 용입깊이와 열영향부 크기 예측 (Prediction of Penetration and Heat Affected Zone by Using Finite Element Method in $CO_2$ Arc Welding)

  • 이정익;박일철;박기영;엄기원
    • Journal of Welding and Joining
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    • 제10권4호
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    • pp.222-229
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    • 1992
  • A prediction of penetration and heat affected zone by using Finite Element Method in CO$_{2}$ Arc Welding has been discussed this paper. The temperature distribution of a base metal produced by the CO$_{2}$ arc welding processing is analyzed by using a three dimensional finite element model. The common finite element program ANSYS 4.4A was employed to obtain the numerical results. Temperature dependent material properties, effect of latent heat, and the convective boundary conditions are included in the model. Numerically predicted sizes of the penetration and the heat affected zone are compared with the experimentally observed values. As a result, there was a slight difference between numerical analysis values and experimentally observed values. For in the case of heat affected zone, it was not considered a precise forced convective coefficient value, and in the case of penetration, it was not, considered a arc force.

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