METHOD FOR ELECTROEROSION-CHEMICAL PIERCING OF HOLES OF SMALL DIAMETER AND DEVICE FOR ITS IMPLEMENTATION

FIELD: technological processes.SUBSTANCE: invention relates to the field of electrophysical and electrochemical machining methods, mainly to piercing holes of small diameter in parts from high-strength and hard steels and alloys. Proposed method comprises billet processing in flow electrolyte at ele...

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Bibliographische Detailangaben
Hauptverfasser:	Zajtsev Aleksandr Nikolaevich, Kosarev Timofej Vladimirovich, Bezrukov Sergej Viktorovich, Idrisov Timur Rashitovich
Format:	Patent
Sprache:	eng ; rus
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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Beschreibung
Zusammenfassung:	FIELD: technological processes.SUBSTANCE: invention relates to the field of electrophysical and electrochemical machining methods, mainly to piercing holes of small diameter in parts from high-strength and hard steels and alloys. Proposed method comprises billet processing in flow electrolyte at electrode-tool movement in billet direction and performing electroerosion and electrochemical removal of billet material by means of periodic feed of initiating pulses and the following power pulses to inter-electrode gap. At the electroerosion removal of the material, the erosion hole is produced in the workpiece, the diameter of which exceeds the diameter of the working end of the tool electrode by selecting values of the amplitude and duration of the discharge current in the initiating pulse, determined from the conditions: 0.8K