Electric heating – Metal heating – Cutting or disintegrating
Patent
1995-06-07
1997-04-08
Evans, Geoffrey S.
Electric heating
Metal heating
Cutting or disintegrating
B23H 104
Patent
active
056184506
ABSTRACT:
A tool is disclosed that is lockably attachable to the vertical driver of an electrical discharge machining apparatus. The tool includes a shaft having an insertion end and an electrode receptacle end. The shaft is lockably attachable to the chuck of the vertical driver. The electrode-receiving receptacle an electrode-receiving slot defined by a pair of spaced apart fixed walls, a floor, and a pair of spaced apart movable walls that function as vices to hold the electrodes in place within the receptacle. The floor of the receptacle may be planar and perpendicular with respect to the fixed and movable walls or may have a blank positioned thereon that defines an angular surface, a curved surface, or an irregular surface that conforms to the surface of the workpiece. The electrodes have indicia such as letters, numbers, or characters formed thereon. The tool finds particular application in etching printing plates.
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Navarra Alberto
Stuart James P.
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