| 摘要 |
A PROCESS OF OBTAINING PRINTED WIRING BOARDS 1 BY BLANKING FROM A PRINTED BOARD MATERIAL (2) WHEN ADJOINING PRINTED WIRING BOARDS HAVE PORTIONS SIMILAR IN CONFIGURATION TO ONE ANOTHER. THE ADJOINING PRINTED WIRING BOARDS (1) ARE LAID OUT SO THAT THEIR PORTIONS (1A) SIMILAR IN CONFIGERATION TO ONE ANOTHER MAY HAVE AN OUTLINE COMMON TO THEM. AFTER CONTOURED PORTIONS (1B) NOT IN CONFORMITY WITH THE OUTLINE COMMON THERETO ARE CUT OFF USING A PRESS OR CUTTING-OFF TOOLS BEFOREHAND, THE PORTIONS (1A) SIMILAR IN CONFIGURATION TO ONE ANOTHER ARE CUT OFF CONTINUOUSLY OVER THE PLURALITY OF PRINTED WIRING BOARDS (1) BEFORE BEING SEPARATED. SINCE SCRAP SLAG 6 IS PRODUCED IN ONLY THE CONTOURED PORTIONS 1B, MATERIAL WASTE THUS DECREASES AND THE PRODUCTION COST IS ALSO REDUCIBLE. IN ADDITION, IT BECOMES POSSIBLE TO PRODUCE THE PRINTED WIRING BOARDS BY MEANS OF ONLY SIMPLE TOOLS.
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