Method and generator for electrical discharge machining
First Claim
1. A method of generating a time sequence of discharge pulses separated from each other by pulse pauses for electrical discharge machining wherein at least two pulse capacitors are discharged each in the form of a partial pulse into the spark gap for forming together a discharge pulse, characterized in that a discharge pulse having a predetermined waveform is selected from a plurality of discharge pulses having differing predetermined waveforms and the discharge of said at least two pulse capacitors is controlled such that said selected discharge pulse is generated with said predetermined waveform.
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Abstract
The invention relates to a method and a generator for generating a time sequence of discharge pulses separated from each other by pulse pauses for electrical discharge machining. At least two pulse capacitors are discharged each in the form of a partial pulse into the spark gap for forming together a discharge pulse. A discharge pulse having a predetermined waveform is selected from a plurality of discharge pulses having differing predetermined waveforms. The discharge of the at least two pulse capacitors is controlled such that the selected discharge pulse is generated with the predetermined waveform.
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24 Claims
- 1. A method of generating a time sequence of discharge pulses separated from each other by pulse pauses for electrical discharge machining wherein at least two pulse capacitors are discharged each in the form of a partial pulse into the spark gap for forming together a discharge pulse, characterized in that a discharge pulse having a predetermined waveform is selected from a plurality of discharge pulses having differing predetermined waveforms and the discharge of said at least two pulse capacitors is controlled such that said selected discharge pulse is generated with said predetermined waveform.
- 17. A generator for generating a time sequence of discharge pulses separated from each other by pulse pauses for electrical discharge machining, comprising at least two pulse capacitors for generating one partial pulse each, and coupled to said pulse capacitors a discharge controller which controls the discharge of said pulse capacitors into a spark gap for forming together a discharge pulse, characterized in by selecting means for selecting a discharge pulse having a predetermined waveform from multiple discharge pulses having differing waveforms, wherein said discharge controller controls the discharging of said at least two pulse capacitors such that said selected discharge pulse is generated having said predetermined waveform.
Specification