Method of working a thin metal body by spark erosion

Method of working a thin metal body by spark erosion

1,020,268. Spark erosion. PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd. March 26, 1964 [March 29, 1963], No. 12845/64. Heading B3V. In the machining by spark erosion of thin metals 1 the polarity of the applied voltage is initially such as to erode preferentially the working surface 3, Fig. 1, o...

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Bibliographische Detailangaben
1. Verfasser: VRIES GERHARD HEINRICH FRIEDRICH DE
Format: Patent
Sprache:eng
Schlagworte:
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
TRANSPORTING
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Zusammenfassung:1,020,268. Spark erosion. PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd. March 26, 1964 [March 29, 1963], No. 12845/64. Heading B3V. In the machining by spark erosion of thin metals 1 the polarity of the applied voltage is initially such as to erode preferentially the working surface 3, Fig. 1, of the electrode 2 to suit the contour of the adjacent workpiece surface, then the polarity is reversed, Fig. 2, and the workpiece is eroded at 4 to reduce its thickness. The workpiece 1 may be a window of beryllium used in an X-ray tube, counting tube or micro-radiography tube. The electrode 2 is preferably of copper.