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Electrolytic machining method for blisk through oblique swinging mode of spatial swivel feeding composite workpiece

A technology of spatial rotation and integral blisk, applied in electric machining equipment, electrochemical machining equipment, metal machining equipment, etc., to achieve the effect of wide application, optimized feed path, and reduced machining allowance difference

Inactive Publication Date: 2015-01-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tool is only fed radially, which will inevitably cause the margin at the tip of the blade to be greater than the margin at the root of the blade

Method used

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  • Electrolytic machining method for blisk through oblique swinging mode of spatial swivel feeding composite workpiece
  • Electrolytic machining method for blisk through oblique swinging mode of spatial swivel feeding composite workpiece

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Embodiment Construction

[0018] Combine below figure 1 , 2 , illustrate the specific implementation process of the present invention:

[0019] 1. Reference figure 1 , using a six-axis CNC high-efficiency electrolytic machining machine tool with complex profiles, the machine tool includes a base, a reference platform 7 installed on the base, a Y linear motion platform installed on the reference platform 7, an X linear motion platform and a fixture reference 8; Install the column on the ram of the motion platform, install the Z linear motion platform on the column, install the Y direction CNC turntable on the ram of the Z linear motion platform, install the output shaft 1 on the Y direction CNC turntable, and install it between the Y direction CNC turntable and the output shaft 1 Install the first insulating pad; the Y-direction CNC turntable and the counterweight bracket of the output shaft 1 are installed on the column; the Z-direction rotation and X-direction tilting CNC turntable 5 are installed o...

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Abstract

The invention relates to an electrolytic maching method for a blisk through an oblique swinging mode of a spatial swivel feeding composite workpiece, which is applied to the electrolytic machining of a blade grid passage of the blisk. The electrolytic machinging method is characterized in that aiming at different types of blisks, a Z-direction rotation and X-direction oblique swinging numerical control rotating platform drives a workpiece to rotate to an optimized angle which is obtained by simulation computing around the X axle before machining is started, and a minimum blade covering angle is sought; a tool is used for feeding along Y-axle and Z-axle space tracks during a machining process, meanwhile, a Y-direction numerical control rotating platform drives the tool to rotate along the Y axle, the Z-direction rotation and X-direction oblique swinging numerical control rotating platform drives the workpiece to swing along the Z axle according to a simulation optimization rule, and the electrolytic machining of the blade grid passage of the blisk is completed through the spatial swivel feeding composite workpiece oblique swinging mode of the tool. According to the electrolytic machining method disclosed by the invention, the allowance difference of machining the blade grid passage can be obviously reduced, the machining accuracy of the blade grid passage of the blisk is increased, and the foundation is laid for realizing of the machining accuracy of a follow-up blade molded surface; the electrolytic machining method can also be applied to the electrolytic machining of a complex surface diffuser and cartridge receiver type parts.

Description

technical field [0001] The invention relates to an electrolytic machining method for an obliquely oscillating integral blisk of a composite workpiece fed by space rotation, and belongs to the technical field of electrolytic machining. Background technique [0002] The traditional blisks connected by tenon and tenon have complex structure, short service life and large airflow loss. With the continuous development of the aviation industry, the blisks connected by tenon and tenon have been difficult to meet the performance requirements of advanced aero-engines. Since the integral blisk overcomes the above shortcomings of the tenon-tenon-groove connection of the blisk, some advanced foreign aero-engines have widely used the integral blisk structure. [0003] Electrolytic machining mainly relies on the principle of electrochemical dissolution of the anode metal for processing. The processing is not affected by the mechanical properties of the material, and the surface of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H3/00
CPCB23H3/00B23H9/10B23H2400/10
Inventor 朱栋谷洲之刘嘉方忠东徐正扬朱荻
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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