| 摘要 |
PROBLEM TO BE SOLVED: To enhance the strength of a cast die level and the quality of a casting, and to shorten the die manufacturing period by solving disadvantages with a known stacked die of insufficient die strength and poor appearance of the casting. SOLUTION: Portions of insufficient strength and defective appearance quality caused by a stacked portion of a stacked die are formed of thick metal plates. A thin plate part is formed by cutting a metal plate by a laser cutter using the slice data for each thickness of the metal plate out of the three-dimensional CAD data. A thick plate part is roughly machined by an NC machine to the shape level in which the thin metal plate is laser-cut and stacked simultaneously with the laser cutting of the thin plate part. After the rough machining, the plates are successively stacked, and a shape part is formed by NC machining after the binding. COPYRIGHT: (C)2005,JPO&NCIPI
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