Electrochemical deburring processing method for turbine disc mortises and special device thereof

A special device, the technology of the turbine disk, which is applied in the field of electrochemical deburring of the tongue and groove of the turbine disk, can solve the problems of high cost, low efficiency of polishing and rounding processing, unstable quality, etc., so as to improve the surface quality of parts and reduce the labor of workers. Strength, the effect of improving surface integrity

Active Publication Date: 2013-01-16
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to replace the traditional processing method, to solve the problems of low efficiency, high cost and unstable quality in the deburring and polishing and rounding of the edge of the turbine disk tenon and groove, and to effectively reduce the labor intensity and improve the working environment. Process method and device of chemical processing deburring technology

Method used

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  • Electrochemical deburring processing method for turbine disc mortises and special device thereof
  • Electrochemical deburring processing method for turbine disc mortises and special device thereof
  • Electrochemical deburring processing method for turbine disc mortises and special device thereof

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Effect test

Embodiment 1

[0047] Such as figure 1 As shown, the electrochemical deburring processing device includes a power supply 12, a working box and a base 11, a fixed cathode 4, a workpiece clamping and positioning system, and an electrolyte supply system. The fixed electrode 4 and the clamping and positioning system have the functions of conduction, positioning, clamping, and forming an electrolyte flow field, etc., and are used for clamping the workpiece to be processed, that is, the turbine disk 10, to realize electrochemical deburring. The power supply 12 is a DC power supply for providing stable current required for processing. The electrolyte supply system provides a certain temperature, concentration, and clean electrolyte, and removes electrochemical products.

[0048] figure 2 Shown is a fixed cathode 4, which adopts a monolithic structure and is made of stainless steel, on which a plurality of fir-tree-shaped electrodes opposite to the tongue-and-groove structure of the workpiece are...

Embodiment 2

[0058] A method for electrochemically deburring the tongue and groove of a turbine disk, the specific processing steps are as follows:

[0059] ① Position and clamp the parts of the turbine disk 10 to be processed on the fixture. It is required that the tenon and groove of the turbine disk 10 be aligned with the fixed cathode 4, and adjust the distance between the tenon and groove edge of the turbine disk 10 and the fixed cathode 4 according to the process requirements. gap;

[0060] ② Connect the turbine disk 10 to the positive pole of the power supply 12 , and connect the fixed cathode 4 to the negative pole of the power supply 12 .

[0061] ③ Pass the flowing electrolyte between the tenon and groove of the turbine disk 10 and the fixed cathode 4, and turn on the power, start the deburring electrochemical machining, and control the corresponding machining time;

[0062] ④ Turn off the power, turn over the turbine disk 10, and repeat the above steps to process the other side...

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Abstract

The invention discloses an electrochemical deburring processing method for turbine disc mortises, which comprises the following steps of: positioning and clamping parts of a processed turbine disc (10) on a clamp; connecting the turbine disc (10) with the positive pole of a power supply (12), and connecting a stationary cathode (4) with the negative pole of the power supply (12); feeding flowing electrolyte between a mortise of the turbine disc (10) and the stationary cathode (4), switching on the power supply so as to begin to carry out electrochemical deburring processing, and controlling the corresponding processing time; and switching off the power supply, turning over the turbine disc (10), and repeating the steps so as to process the other side of the turbine disc (10), wherein in the process of processing, requirements on the processing voltage, the processing current, the electrolyte compositions, the electrolyte concentration, the electrolyte pressure P, the electrolyte temperature T, the processing clearance delta and the processing time are required. The clamp for positioning and clamping parts of the processed turbine disc (10) is specifically a part of a special device for electrochemical deburring processing of turbine disc mortises. The method disclosed by the invention is high in processing efficiency, good in processing effect and low in cost, and has great economic values.

Description

technical field [0001] The invention relates to the technical field of electrochemical machining methods and devices for mechanical structural parts, and in particular provides a method for electrochemical deburring of turbine disc tenon grooves and a special device thereof. Background technique [0002] The turbine disk is an important part of the aero-engine, and it forms the turbine rotor with the turbine blades installed on it, which is the working part of the turbine engine that converts heat energy into mechanical energy. The working environment of the turbine disk is extremely harsh, and it bears the impact of high temperature and high pressure gas, as well as the centrifugal force of the blade and itself, the alternating change of cold and heat, stress cycle, vibration fatigue, etc. Therefore, the processing of the turbine disk requires high quality, high reliability, resistance fatigue. The turbine disk is mainly composed of the disk body and dozens of fir tree-sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H3/00B23H9/02B23H11/00
Inventor 朱海南于冰王德新齐歆霞
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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