Suction electrolytic machining device and method for finishing internal structure

Abstract

The invention discloses a pumping type electrolytic processing device and method for finishing the internal structure, which comprises workpiece anode, tool cathode, insulating layer, clamping frame, slider, bolt, sealing gasket, liquid suction pipe, pressing Screws effectively solve the problem that electrolysis products and air bubbles are difficult to discharge during electrolytic machining of the internal structure; the insulating layer is equidistantly distributed along the axis of the workpiece cathode to ensure the insulation between the tool cathode and the workpiece anode during processing; the workpiece anode passes through the clamping frame, The slider and the bolt are clamped; the electrolyte in the internal structure of the anode of the workpiece is pumped out through the connecting pipe to connect the suction pipe and the suction pump, and the bubbles and electrolytic products generated during the electrochemical reaction process are brought out; during processing, after a period of time Move the cathode of the tool for a certain distance to process the area originally shielded by the insulating layer from the electric field, thereby realizing the electrolytic finishing of the entire internal structure; the invention can extract the electrolyte from the internal structure during electrolytic finishing. Take away the bubbles and electrolytic products generated in the electrolytic machining process, and realize the electrolytic finishing of the entire internal structure surface.

Description

technical field [0001] The invention relates to a suction-type electrolytic machining device and method for smoothing internal structures, belonging to the field of electrolytic machining equipment. Background technique [0002] Additive manufacturing technology is a key core technology that is being developed by the world's scientific and technological powers. It has opened up new technological approaches for the design and manufacture of high-performance metal components in aerospace and other fields. Aerospace metal components have the characteristics of light weight, difficult machining, and high performance. Among them, some components of aerospace engines have internal structures; it is difficult to ensure the surface quality of the internal structures of such components prepared by additive manufacturing, and there are a large number of unfused powders, which further deteriorates the surface quality, making it difficult for its components to reach aviation The requir...

AI Technical Summary

Problems solved by technology

Since electrolytic machining is a non-contact process with high flexibility and processing flexibility, the internal structure of the additive manufacturing component can be finished only by necessary insulation means to ensure that the component and the cathode are not in contact; however, due to the internal structure Due to the airtightness of the electrolysis process, there are bubbles and the electrolysis product is difficult to discharge from the internal structure. In addition, the insulation method will also hinder the flow of the electrolyte. Therefore, it is difficult to discharge the electrolysis product and update the electrolyte by conventional flushing methods. This hinders the electrochemical reaction between the surface of the internal structure and the electrode

[0004] In order to solve the problem that air bubbles and electrolytic products are difficult to discharge from the internal structure, this patent proposes a suction electrolytic processing device and method for finishing the internal structure

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