Machining method for large-size thin-wall ceramic matrix composite wing component

Abstract

The invention discloses a machining method for a large-size thin-wall ceramic matrix composite wing component. The method comprises the following steps that a special machining tool for wing component cutting is manufactured; the main characteristic auxiliary machining tool designed and developed in the step 1 is used for clamping and positioning a profiling wing-shaped blank; step 3, the machining reference of the profiling wing-shaped blank is determined; after the appearance characteristics of the profiling wing-shaped blank are machined, the clamping direction of a workpiece spindle cutter is converted into the Y-axis direction of an original machine tool through a machine tool side milling head, the inner cavity profile and the wall thickness characteristics of the profiling wing-shaped blank are machined through a diamond grinding head with the diameter being 10 mm, and the wing component without a characteristic hole is obtained; and the wing component without the characteristic hole is placed on a main body base of the special tool for punching the characteristic hole, a workpiece is fastened and clamped through a clamping device, and the characteristic hole is machined. According to the method, precise machining of the large-size thin-wall ceramic matrix composite wing component can be achieved, and therefore important guarantee is provided for development and production of series of aircrafts of key models.

Description

technical field [0001] The invention belongs to the technical field of precision machining of ceramic-based composite materials, and in particular relates to a processing method for large-scale thin-walled ceramic-based composite material wing components. Background technique [0002] With the continuous improvement of the precision requirements of manufacturing technology in the aviation and aerospace fields, my country's aircraft are increasingly tending to develop in the direction of strong penetration, fast maneuvering and rapid response. Ceramic matrix composites are more and more used due to their excellent material properties. In aviation and aerospace fields. The wing component is an important part of the aircraft, and is the key to long-term, high-maneuvering flight. It undertakes important functions such as controlling the flight attitude and adjusting the flight direction. The wing member is made of ceramic matrix composite material. Due to the characteristics of ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a large-scale thin-walled ceramic matrix composite material wing member processing method, which can effectively solve the problem of large deformation, difficult determination of positioning reference and difficulty in processing accuracy during the processing of workpieces. It can realize the precise processing of large-scale thin-walled ceramic matrix composite wing components, thus providing an important guarantee for the development and production of a series of key models of aircraft

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