Electrical discharge machining method of sheet electrolysis with high-frequency vibration

Abstract

The invention discloses an electrical discharge machining method of sheet electrolysis with high-frequency vibration. The electrical discharge machining method comprises the following steps of (1) vertically and fixedly installing a sheet on the front end of a clamping substrate, wherein the sheet is used as a conducting material; (2) respectively connecting the clamping substrate and a to-be-processed workpiece 3 with the anode and cathode of a pulsed power supply; (3) driving the sheet to horizontally move to the to-be-processed workpiece by the clamping substrate during processing so as toform feed processing, and driving the sheet to do reciprocating vibration in a vertical direction by the clamping substrate at the same time, wherein the sheet makes line contact with the to-be-processed workpiece; and (4) spraying a processing solution to the contact surface between the sheet and the to-be-processed workpiece. According to the electrical discharge machining method, the sheet is used as an electrode during processing, the sheet can be processed with the thickness smaller than the diameter of a wire electrode, so that a small narrow groove gap can be generated, and additionally, large current can pass through the sheet, so that the processing efficiency is improved. The high-frequency vibration of a sheet cutter is increased during processing, so that composite processing is formed, and the problems of liquid discharge and chip removal are solved.

Description

technical field [0001] The invention belongs to the technical field of electric discharge machining, in particular to a sheet electrolysis electric discharge processing method with high-frequency vibration. Background technique [0002] In many mechanical processing, it has always been difficult for some difficult-to-machine metals, especially for the processing of some tungsten steels, and it is very difficult for some tungsten steel tools to be trimmed. Because tungsten steel has some characteristics such as high hardness, wear resistance, good strength and toughness, and heat resistance, it is difficult to process it by conventional methods. They usually undergo some conventional processing before powder sintering heat treatment, and most of the processing after sintering is mainly grinding without large-scale and large-shape changes. For the processing and trimming after sintering, ceramic blades and boron nitride blades are often used for minor trimming, and there are ...

AI Technical Summary

Problems solved by technology

Wire EDM has also been used to cut single crystal silicon in recent years, but due to the vibration of the electrode wire commutation and the passage of large currents, it is easy to cause the electrode wire to fuse, resulting in low processing accuracy

Although there are some using electrolytic EDM, there are also some problems in the process of chip removal, machining short circuit, and low machining efficiency.

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