| 摘要 |
PROBLEM TO BE SOLVED: To dispense with expensive dies and press for punching by welding square cut plates of different thickness to each other to form a blank for pressing. SOLUTION: In a first cutting stage SG2, a plate is cut to the prescribed length to form cut plates 4A, 4B, 4C, in a side-shifting stage SG3, the cut plates 4A, 4B, 4C are shifted, and in a welding stage SG4, the cut plate 4A, the cut plate 4B, and the cut plate 4C are welded to each other to form a wide plate 5, and in a second cutting stage SG5, an integrated blank 6 to be pressed is cut. |
