pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (9권1호 67-72)
Solidification Analysis of Steel Castings & Large Ingots By Modified Finite Difference Method
개량차분법에 의한 주강품 및 대형 잉곳드의 응고해석과 수축공 예측
Young-Chul Lee*, Jong-Won Kim*, Chun-Pyo Hong**
*Graduate School, Yonsei University, **Yonsei University
Solidification analysis was conducted on large steel castings and ingots by a modified finite difference method. Auto-mesh generation system was developed for improving the application of the computer analysis system to casting disign. Combined use of the prediction parameters, solidification time and temperature gradient, and an auxiliary parameter, shrinkage potential, were used to predict the formation of shrinkage defects. Several examples on the prediction of shrinkage cavity by this method were campared with the experimental reslts. It was found that a quantitative design of large steel castings and ingots can be made by the computer aided analysis of solidification process.