| 摘要 |
PROBLEM TO BE SOLVED: To form a part of a complicated shape with high accuracy by determining the order of priority in total forming and local forming. SOLUTION: The periphery of a plate 10 is fixed by a supporting frame 11 and a clamp 12, a receiving member 21 and a bar-shaped pressing member 20 are disposed on upper and lower sides of the plate, respectively, the receiving member 21 is pushed up and abutted on a lower face of the plate 10 and the bar-shaped pressing member 20 is pushed down to sequentially form a small recessed part 24 of a complicated shape in a forming recessed part 22 of the receiving member 21 (AB). Next, a local exclusive forming part 25 is fitted to an elevating/lowering shaft 23 in place of the receiving member 21, and the small recessed part 24 is accommodated in a forming recessed part 26. In addition, a die-shaped pressing member 13 to integrate the local exclusive forming part 25 in an elevating/lowering manner is similarly disposed below the plate 10 in an elevating/lowering manner, the die-shaped pressing member 13 and the local exclusive forming part 25 are integrally pushed up to entirely form the total plate 10 in a rough shape (C). The small recessed part 24 formed in advance as a complicated shape is within the forming recessed part 26 of the local exclusive forming part 25, and less affected by the total forming. Sequential forming is further performed by the bar-shaped pressing member 20, the plate 10 is then detached, and the periphery thereof and a bottom part of the small recessed part 24 are laser-cut to obtain a product (D). COPYRIGHT: (C)2003,JPO
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