Thin electrode for electrolytic machining of integral wheel

A technology of integral impeller and sheet, which is used in processing electrodes, electric processing equipment, electrode manufacturing, etc., can solve problems such as poor versatility, narrow cathode application range, and inability to carry out blade profiles.

Inactive Publication Date: 2009-08-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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Problems solved by technology

[0005] Aiming at the problems that the cathode has a narrow application range and poor versatility in impeller electrolytic machining, and that the electrode cannot be inserted into the narrow impeller channel with space distortion, it is impossible to process the blade profile, etc., the present invention proposes a new thin cathode, Its surface is twisted and complex, and it can enter the special-shaped and narrow im

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  • Thin electrode for electrolytic machining of integral wheel
  • Thin electrode for electrolytic machining of integral wheel
  • Thin electrode for electrolytic machining of integral wheel

Examples

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Embodiment Construction

[0012] Such as figure 1 As shown, the impeller electrolytic machining electrolyte circulation system consists of pressure gauge 10, flow meter 11, regulating valve 12, electrolyte tank and electrolyte 16, filter 18, stop valve 19, multi-stage centrifugal pump 20, ball valve 21 and other parts , Supply the electrolyte for processing and discharge the electrolysis product. The machine tool mainly includes machine tool platform 1, leaf back cathode fixture 2, integral impeller 3, indexing turntable 4, DC power supply 5, impeller electrolytic machining fixture 7, three-dimensional comprehensive electric translation table 7, leaf basin cathode fixture 8 and other parts, which are the whole The core component of the machine tool. The temperature controller 13, the cooling tower 14, the thermocouple 15, and the heater 17 form an electrolyte constant temperature control system, which heats and cools the electrolyte in the electrolytic cell. The control host 6 constitutes the control...

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Abstract

The invention relates to an electrolytically-processed slice electrode of an integral impeller and pertains to the field of electrolytic processing. The invention is characterized in that the slice electrode is a twisted profile and the twist extent is similar to a blade profile; one side of the slice electrode is a processing surface and the other side is a non-processing surface; the non-processing surface is coated with an insulation layer; wherein the thickness of the insulation layer varies along the axial direction of a cathode slice, the insulation layer close to the mounting end of the cathode slice is thicker and the coating layer close to the processing end is thinner; the slice electrode is vertically arranged on an electrode fixture. With twisted profile, the invention can process deformed and narrow impeller slots; the insulation layer with optimized thickness coated on the non-processing surface of the cathode prevents the secondary erosion on the non-processing surface and increases the intensity of the cathode slice, thus achieving the stable feeding of the cathode slice in the processing and ensuring smoothness and stability of a flow field in the processing area.

Description

technical field [0001] The invention relates to a sheet cathode for electrolytic processing of an integral impeller, belonging to the field of electrolytic processing. Background technique [0002] Electrolytic machining processes the workpiece based on the principle of anode dissolution. During the processing, the anode of the workpiece is connected to the positive pole of the power supply, and the cathode of the tool is connected to the negative pole of the power supply. During the passage, the anode workpiece gradually dissolves, thereby processing the workpiece into shape. Electrolytic machining has the advantages of no loss of tools, good surface quality, complex cavity, surface, and hole, and is not limited by the strength and hardness of materials. It has been widely used in aerospace, weapons, automobiles, medical equipment and other industries. widely used. Especially in the manufacturing process of the overall impeller and blade of aero-engine, with the developme...

Claims

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Application Information

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IPC IPC(8): B23H3/04
Inventor 朱荻朱栋徐正扬
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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