Printed circuit board mfr. - forming holes in board in press blanking operation using stepper motor driven table

摘要

The electrical circuit board has a carrier material that is non conducting, with a surface coating of conducting material formed on it. A perfires (11-14) are formed at specific locations in a blanking operation carried out on a press. The tool has punches that move relative to a die base. The board is mounted on a table that can be moved in the X and Y directions to carry out blanking of multiple elements (20). The table has stepper motor drives controlled to a programme. ADVANTAGE - Allows number of circuit boards to be blanked out.