A rotary magnetic fluid assisted grinding sleeve electrolytic composite processing device and method

Abstract

The invention relates to a rotary magnetic fluid assisted grinding casing electrolytic compound processing device and method. The device includes: reference table, insulating and sealing fixture, sheet alloy electrode, excitation insulating sleeve, formed coil winding and sealing end cover, etc. During the processing, a voltage is applied between the workpiece and the sheet alloy electrode, and at the same time, the electrolyte solution flows into the insulating sealing fixture, and flows through the gap between the workpiece and the sheet alloy electrode at a high speed, so that the workpiece is under the action of electrochemical corrosion was dissolved. The excitation insulating sleeve is slidingly and sealedly connected with the sheet-shaped alloy electrode, and the sheet-shaped alloy electrode is pushed downward under the action of the machine tool to shape the workpiece. The tube wall of the excitation insulating sleeve has a built-in coil winding, which generates a magnetic field under the action of an external current, and drives the nanoparticles in the magnetic fluid to continuously grind the surface of the workpiece, which helps to reduce stray corrosion on the electrolytic machining surface of the nesting material and improve the surface quality.

Description

technical field [0001] The invention relates to a rotary magnetic fluid assisted grinding casing electrolytic compound processing device and method, belonging to the technical field of special processing. Background technique [0002] Electrolytic machining mainly relies on the electrochemical dissolution mechanism of the metal anode to remove the workpiece material. This technology has the advantages of no micro-cracks on the machined surface, no stress residue, high productivity, and no tool loss. In view of the above characteristics, electrolytic machining has become an indispensable technology in high-end manufacturing fields such as aviation and medical treatment. [0003] Although electrolytic machining has obvious advantages, stray corrosion is inevitable in the machining process, which affects the machining accuracy and restricts the application of this technology. Aiming at the problem of stray corrosion, domestic researchers have conducted a lot of research and ac...

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Problems solved by technology

[0004] The patent "a multi-potential electrolytic machining method" (application number CN201410373682.0) adopts a multi-potential electrolytic machining method to constrain the electric field through the high potential of the insoluble auxiliary anode to control the stray corrosion of the electrolytic machining structure, but the insoluble auxiliary anode usually Using metal platinum, its cost is higher

[0005] The patent "Cathode Device and Processing Method for Electrolytic Machining of Freezing Protection Jacket" (application number CN201910202880.3) adopts the method of freezing protection to inhibit the migration of carriers in the non-processing area and control stray corrosion. However, when the electrolyte freezes, The interference electrode moves, and the workpiece is damaged under the collision

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