Method of precision electric-discharge machining employing electrodes in the form of wires, and apparatus for carrying out the method
AssigneeAG Fur Industrielle Elektronik
InventorsErnst Buhler, Livio Mazzolini, Rino D'Amario
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Abstract
A method of precision electric-discharge machining carried out in apparatus of moderately high precision and stability with an electrode in the form of a wire. The object is a surface as smooth as the surface that can be obtained with the more expensive very high-precision apparatus. The contour of work that has already been roughed out at least once is accordingly exploited as a geometrical reference for at least one finishing cut. The gap is maintained constant by fine adjustments.
Claims31
Method of precision electric-discharge machining carried out in an apparatus of moderately high precision and stability with an electrode in the form of a wire comprising the steps of rough cutting a work at least once;
- and geometrically referencing for fine adjustments for at least one finishing cut the contour of the work that has already been roughed cut, and at least one step of finish machining to polish the rough cut contour of the work piece.
Method of precision electric-discharge machining carried out in a machine of moderately high precision and stability with an electrode in the form of a wire, comprising the steps of
- rough cutting a work piece at least once;
- geometerically referencing the contour of the roughed-out cut in the work piece for polishing the roughed cut;
- sensing sound of the discharge above and below the workpiece;
- and maintaining the sound intensity of the discharge above and below the workpiece at the same level by tilting the wire at a right angle to the roughed cut.
Apparatus for electric-discharge cutting with an electrode in the form of a wire or band and with adjustment mechanism (X, Y, U & Z), comprising servo mechanisms (XF & YF and UF & VF) for carrying out fine adjustments of a rough cut by cutting at an angle to the rough cut, and further comprising sensors, for maintaining the distance between the work piece and the wire in the vicinity of the spark constant.
Dependencies are inferred from the claim text.