A high-current multiple cutting method for high-speed reciprocating wire electric discharge cutting

Abstract

The invention discloses a high-current multiple cutting method for high-speed reciprocating wire electric discharge cutting, which adopts four times of cutting-"cutting, cleaning, and repairing two", that is, the first high-current high-efficiency cutting is formed, and the second Cutting adopts wire-feeding speed and processing energy that are more than half of the first cutting to cut the workpiece with zero trimming or minimal trimming—knife cleaning, so as to reduce the remaining erosion products between the electrodes and eliminate the deformation of the workpiece, and then Then use narrow pulse width and high peak current to perform high-speed trimming for the third and fourth cuts, further improving the processing accuracy and surface quality of the workpiece, so as to achieve high cutting efficiency and high processing quality.

Description

technical field [0001] The invention relates to a wire electric discharge processing method, in particular to a high-speed reciprocating wire electric discharge wire cutting processing method, specifically a high-current multiple cutting method for high-speed reciprocating wire electric discharge wire cutting. Background technique [0002] Multi-cutting is the fundamental means to improve the precision and surface quality of WEDM. It separates rough and finish machining, and uses two processing procedures, main cutting and trimming, to solve the contradiction between fast and good quality. At present, reciprocating wire EDM mostly uses three cuts (cut one and repair two), generally through the first cut to shape, the second cut to improve the processing accuracy, and the third cut to improve the surface quality of the processed workpiece. [0003] The average processing current of conventional reciprocating wire EDM is generally 4-6A, and the cutting efficiency is stable at ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of high-speed reciprocating wire electric discharge cutting with high-current and high-efficiency cutting, the state between electrodes is poor, the contour accuracy is low, and the material deformation is large, which affects the cutting efficiency and processing quality of subsequent trimming. Wire EDM high-current multiple cutting method can improve cutting efficiency and processing quality after high-speed reciprocating wire EDM high-current high-efficiency cutting

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