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Protective device and method for machined blades processed by electrolytic machining of integral blisks

A technology of integral blisks and protection devices, applied in the direction of electric processing equipment, electrochemical processing equipment, auxiliary devices, etc., can solve problems such as stray corrosion of processed blades, achieve suppression of stray corrosion, reduce conductive media, and improve stability. domain effect

Active Publication Date: 2022-04-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a protection device and method for the processed blades of the integral blisk electrolytic machining, to effectively solve the problem that the processed blades suffer from stray corrosion in the integral blisk electrolytic machining, and to protect the consistency of the processed test pieces , improve the processing quality of parts

Method used

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  • Protective device and method for machined blades processed by electrolytic machining of integral blisks
  • Protective device and method for machined blades processed by electrolytic machining of integral blisks
  • Protective device and method for machined blades processed by electrolytic machining of integral blisks

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Embodiment Construction

[0018] Combine below figure 1 , 2 , 3 and 4, the specific embodiment of the present invention is described in detail as follows.

[0019] Implementation of the present invention - "integral blisk electrolytic machining machined blade protection device", which mainly includes an annular insulating protective sleeve, an air supply device and a protective sheet.

[0020] The process of protecting processed blades in the electrolytic machining of integral blisks by using the present invention mainly includes the following steps:

[0021] Step 1: Install the fixture and write the feed program of the electrolytic machining machine tool. The whole blisk is installed on the special machine tool for electrolytic processing, and the workpiece and the cathode are respectively connected to the positive and negative poles of the special power supply for electrolytic processing.

[0022] Step 2: Wrap the processed blade with a protective sheet, such as figure 2 As shown, the inner char...

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Abstract

The patent relates to a protection device and method for a processed blade of an integral blisk electrolytic machining, which belongs to the field of electrolytic machining. The device is composed of three parts: an annular insulating protective sleeve, an air supply device and a protective sheet, which forms triple protection for the processed blades of the overall blisk, and inhibits the corrosion of the processed blades by stray electrolyte. Through the triple protection device, the machined blade is guaranteed to be in an environment without electrolyte, the stray corrosion of the machined blade is suppressed, the consistency of the machined test piece is ensured, and the surface quality of the machined test piece is improved.

Description

technical field [0001] The invention relates to a protection device and method for an integral blisk electrolytically processed blade and belongs to the technical field of electrolytic processing. Background technique [0002] In order to improve the aerodynamic performance of aerospace engines, blisks are widely used, which simplifies the structure of the engine, effectively improves the thrust-to-weight ratio and reliability, but increases the difficulty of manufacturing the engine. Among the many blisk machining methods, electrolytic machining has been widely used in the aerospace field due to its many advantages. [0003] The stray corrosion in electrolytic machining affects the surface quality and machining accuracy of the machined parts. In order to reduce stray corrosion, in the patent "cathode system and processing method for electrolytic machining of gas-insulated protective casing material" (application number 201710463442.3 applicant Nanjing University of Aeronau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H3/00B23H9/00B23H11/00
CPCB23H3/00B23H9/00B23H11/00
Inventor 朱栋雷高攀李家宝朱荻
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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