Improvements in or relating to apparatus and method for machining a workpiece by spark erosion

807,897. Machining by spark discharge. FIRTH STERLING Inc. Sept. 12, 1955, No. 26031/55. Class 83 (4). In a method of and apparatus for machining a workpiece 5, particularly of tungsten carbide or hard alloy steel, by spark discharges, the discharge circuit is of low inductance. The apparatus is mou...

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Bibliographische Detailangaben

1. Verfasser:	WILLIAMS EVERARD M
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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