One-way wire cut electrical discharge machining method circularly utilizing electrode wire

Abstract

A one-way wire cut electrical discharge machining method circularly utilizing an electrode wire comprises a forward wire walking step and a reverse wire walking step. The wire walking direction of the forward wire walking step is opposite to that of the reverse wire walking step. In the forward wire walking step, discharge cutting machining is conducted during wire walking, and in the reverse wire walking step, the discharge cutting machining is suspended during wire walking. By means of the method, the utilization rate of the electrode wire can be increased, and meanwhile the machining precision can be improved.

Description

technical field [0001] The present application belongs to the technical field of wire cutting technology, and in particular relates to a unidirectional electric discharge wire cutting method for recycling electrode wires. Background technique [0002] EDM is to use pulse spark discharge to etch the material to be processed for processing. There is no contact between the processing electrode and the material to be processed due to the presence of liquid dielectric, so softer electrodes (tools) can be used to process hard and brittle conductors such as metals. and semiconductor materials. In EDM, the moving wire electrode cutting is the most widely used. There are two types of wire cutting: one-way wire cutting (slow wire) and reciprocating wire (fast). Among them, reciprocating wire cutting is a mechatronics technology independently developed in my country, which is unique to our country. Its advantage is that the cost of equipment is Inexpensive, molybdenum alloy electrode ...

AI Technical Summary

Problems solved by technology

[0003] At present, the electrode wires (generally copper alloy wires) of unidirectional wire cutting are all used in one-pass mode. The electrode wires are led to the processing area by the wire storage cylinder and are discarded after leaving the processing area after a discharge, especially for small energy. Serious waste of electrode wire during cutting; the electrode wire of reciprocating wire cutting is used repeatedly, but because the two directions of reciprocating wire cutting are discharged and cut to form commutation stripes, the processing accuracy is far worse than that of unidirectional wire to cut