Design optimization method of blisk electrolytic preliminary molding machining path parameters

Abstract

The invention discloses a design optimization method of blisk electrolytic preliminary molding machining path parameters, and belongs to the technical field of electrolytic machining. When electrolytic preliminary molding machining is provided with a plurality of blisks with characteristic sections, the machining path parameters are optimized through a UG software, the design of the blisk electrolytic preliminary molding machining path parameters can be completed quickly, the obtained path parameters can make an actual section contour curve cover all designed section characteristic curves uniformly and make machining allowance distributed in different positions more uniform, the design problem of the blisk machining path parameters is solved, subsequent machining is convenient, machining efficiency is improved, and the quality of machined products is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of electrolytic machining, and in particular relates to a method for designing and optimizing the machining track parameters of integral blisk electrolytic preliminary forming. Background technique [0002] The performance of the aero-engine directly affects the flight performance, reliability and economy of the aircraft. It is called the "heart" of the aircraft. As an important structural part of the fourth-generation engine, the overall blisk adopts an integrated structure to replace the conventional blisk. The tenon and tenon-groove connection greatly simplifies the blisk structure, avoiding hidden dangers caused by damage to the tenon and tenon-groove joints, improving the working efficiency of the engine, and enhancing the reliability and durability of the blisk. However, at the same time, the adoption of an integrated overall structure has brought great challenges to the processing technology of the bl...

AI Technical Summary

Problems solved by technology

However, at the same time, the adoption of an integrated overall structure has brought great challenges to the processing technology of the blisk. At present, the processing of the overall blisk blades in China has been completed by imported five-coordinate processing machine tools, but the blade structure of the overall blisk is complicated. Narrow, thin blades, large bending and twisting, easy to deform, and high machining accuracy requirements, and the materials of the overall blisks are titanium alloys, high-temperature alloys and other difficult-to-machine materials, poor process realization, severe cutting wear of the cutting tools, and short cutting life of the cutting tools. As a result, the milling and manufacturing of the blisk is difficult, resulting in a long processing cycle, low efficiency and high production cost of the blisk. This has become the main bottleneck restricting the mass production of the blisk of the engine. Therefore, it is urgent to broaden the processing of the blisk Process approach, seeking and exploring efficient and low-cost processing methods suitable for blisk processing, reducing the processing cycle and production cost of blisk blades

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