Title:
HIGH FREQUENCY DIELECTRIC HEATING PUNCHING DEVICE
Document Type and Number:
Japanese Patent JPH01199791
Kind Code:
A
Abstract:
PURPOSE:To permit a difficult-to-punch material to be efficiently punched into a clear cut surface by forming punching metal molds to be used serving as the upper and bottom electrodes of a high frequency heating device. CONSTITUTION:A knife edge 2a of a press upper board 1a is used serving as the upper electrode of a high frequency oscillator 6, and a bottom laid plate 5 of a press bottom board 1b is used serving as the bottom electrode. A workpiece 3 is positioned between these knife edge 2a and underlay plate 5, and the workpiece 3 heats its shearing region by high frequency dielectric heating by actuating the high frequency oscillator 6. In this way, the workpiece 3 difficult to be punched obtains a clear cut surface of punching.
Inventors:
TOYOUCHI KAORU
NAKAMURA MASAKATSU
NAKAMURA MASAKATSU
Application Number:
JP2117488A
Publication Date:
August 11, 1989
Filing Date:
February 02, 1988
Export Citation:
Assignee:
ASAHI CHEMICAL IND
International Classes:
B26D7/10; (IPC1-7): B26D7/10
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