장소재 인발공정 중 금형의 온도변화 예측

An approach to non-steady-state prediction of temperature in drawing of a long tube/pipe with high accuracy is presented in this paper. A fine mesh system near the contacting area is employed to keep appropriate contact between material and dies, which is of great importance because contact region is inherently quite small in tube/pipe drawing. Once the end of refined mesh region passes a certain point located at before the deformation effective region, a new refined mesh system is generated by a special remeshing scheme. During remeshing, the entry region is rebuilt with initial material while the material at the exit side which is far away from the deformation effective region. An application example is given, which shows the characteristics of the presented scheme.