| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a shearing method for a printed wiring original plate that efficiently performs shearing work and effectively distributes a load to a metal mold. Ž<P>SOLUTION: A printed wiring original plate 1 is made up such that it has a first mounting substrate part 5 on which a circuit pattern for a first printed-circuit board 3 is printed and a second mounting substrate part 9 on which a circuit pattern for a second printed-circuit board 7 is printed. The first mounting substrate part 5 and the second mounting substrate part 9 should be so formed that they are point-symmetrical. The printed wiring original plate 1 is conveyed to the metal mold 11 and a first shearing work is done thereto. When the first shearing work is done, the printed wiring original plate 1 is turned 180° along the surface of the plate, and then conveyed again into the metal mold 11 to do a second shearing work. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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