Cathode and workpiece cooperative pulse dynamic precise electrolytic machining method

Abstract

The invention relates to a cathode and workpiece cooperative pulse dynamic precise electrolytic machining method, and belongs to the technical field of electrolytic machining. The device is mainly characterized in that a workpiece is vertically mounted in a clamp, a blade basin cathode and a blade back cathode perform reciprocating vibration while being fed oppositely, and the workpiece performs cooperative vibration in the vertical direction. The tool cathodes on the two sides are always fed oppositely, in a single dissolution period, a power source is applied when the tool cathodes vibrate to be close to the workpiece, the workpiece is located at the machining position, and the material is dissolved. When power is cut off, the cathodes on the two sides vibrate and return, the workpiece also vibrates and returns in the vertical direction, materials are not dissolved, and electrolysis products are discharged. Through vertical installation of the workpiece, the bubble discharging speed can be increased, the bubble rate at an outlet is reduced, and the influence of bubbles on machining gap distribution is reduced. The flushing effect of the electrolyte on products attached to the surface of the workpiece is enhanced through the cooperative vibration of the cathodes and the workpiece, and discharge of the electrolytes is promoted; and a disturbance effect is applied to a flow field through up-down movement of the workpiece in a flow field, so that the uniformity of bubbles and temperature is improved, and the allowance distribution uniformity of the workpiece is improved.

Description

technical field [0001] The invention relates to a dynamic precision electrolytic processing method for a cathode and a workpiece in cooperation with a pulse, and belongs to the field of electrochemical processing. Background technique [0002] Electrolytic machining technology is a special processing technology based on electrochemical principles. It uses metal anodic dissolution to achieve material removal and process workpieces with specific sizes and shapes. Compared with mechanical processing methods, electrolytic processing has the advantages of no metamorphic layer on the surface of the workpiece, high mass production efficiency, and no loss of tool electrodes. It is widely used in the processing of complex-shaped parts such as aero-engine blades. [0003] In the traditional blade electrolytic machining process, the electrolyte flow mode usually adopts the side flow type, that is, the electrolyte flows in from the air intake (or exhaust) side of the blade body, and flo...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the product is easily adsorbed on the surface of the workpiece and the distribution uniformity of the margin along the process is poor during the electrolytic machining process of the blade, a dynamic and precise electrolytic machining method of the cathode and the workpiece is proposed to improve the uniformity of the flow field distribution in a single cycle , to promote the effective discharge of electrolysis products

Images