| 摘要 |
PURPOSE:To review normal/defective condition of the shape of a rough mold through a computer simulation (analysis of plastic deformation) at the time of designing the rough mold for forging in two steps by a rough mold and a finishing mold. CONSTITUTION:The sectional, area ratio (rough mold/finishing mold) of a cavity is computed in a few places of the front and back of a cross section of analysis of a designed mold (4), the computation is compared with a basic pattern which is provided with such sectional area ratio of a cavity that the compact sectional area of the cross section of analysis does not change (5), and, in the case of coincidence, a compactibility in the cross section of analysis, i.e., the review of normal/defective condition of the rough mold shape is carried out through a simulation (6). In the absence of the area change of a compact in the cross section of analysis, the analysis is performed by a simulator for the analysis of two-dimensional deformation. Incidentally, a difference in sectional area may be used in lieu of the sectional area ratio. |
