Method for punching ceramic green sheet

Details Method for punching ceramic green sheet Method for punching ceramic green sheet

1985-04-18

1987-03-31

Meister, James M.

Cutting

Processes

Plural cutting steps

83 49, 83103, 83 71, 83266, 83409, 83560, B26F 102

Patent

active

046533656

ABSTRACT:
A punching method and apparatus for forming through holes by punching in a ceramic green sheet for use as a material of a laminated substrate. Not only the positioning of the work but also the driving of the upper die set are conducted by of servomotors with the speed and timing of operation of the servomotors being controlled in accordance with a prestored program in a microcomputer, so as to attain a high speed and efficiency of operation. In addition, a hole clearing operation is conducted immediately after the punching so that the chip remaining in the punched through hole, if any, is forced out from the through hole by the same punch used in the punching operation.

REFERENCES:
patent: 2866506 (1958-12-01), Hierath et al.
patent: 4162641 (1979-07-01), Stubbings
patent: 4209129 (1980-06-01), Haas
patent: 4434693 (1984-03-01), Hosoi et al.
patent: 4523749 (1985-06-01), Kindgren et al.

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