Machining method for ceramic-based composite material module assemblies

Abstract

The invention discloses a machining method for ceramic-based composite material module assemblies. With a metal end surface of a workpiece as a datum, the planarity of the metal end surface is leveled so as to be less than or equal to a first preset value; the center of the workpiece is preliminarily determined with bottom pin holes already machined on the workpiece as a datum, the shape of the workpiece is roughly machined until a machining allowance is left, wherein the bottom pin holes are machined on the metal end surface of the workpiece; whether the machining allowance is uniform is detected by eddy current; after a result of eddy current detection determines that the machining allowance is uniform, the shape of the workpiece is finished to dimensions; with the metal end surface as a datum, the planarity of the metal end surface is leveled so as to be less than or equal to a second preset value; with the shape of the workpiece finished to the dimensions as a datum, the center of the workpiece is determined again, and the metal end surface is machined to dimensions. The machining method solves the technical problem that the ununiformity of wall thickness caused by machining deformation can hardly be controlled when a ceramic-based composite material module assembly is machined, and increases the product precision of the ceramic-based composite material module assembly.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a processing method for a cabin component of a ceramic matrix composite material. Background technique [0002] In recent years, with the continuous advancement of science and technology, material technology has developed rapidly. Composite materials have gradually become one of the dominant materials. Composite materials have the characteristics of light weight, high specific strength, specific modulus, corrosion resistance, high temperature resistance, and ablation resistance. They are ideal materials for weapons such as aircraft, missiles, and aerospace vehicles. "Metal + composite material" is a kind of structural part that is relatively common in missile weapon systems at present, and is currently mainly manufactured by winding, suiting and other technologies. As an emerging composite material, ceramic matrix composites have stronger corrosion res...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a processing method for a ceramic matrix composite material cabin assembly, which solves the technical problem that it is difficult to control the uneven wall thickness caused by processing deformation when the existing processing method is used to process a ceramic matrix composite material cabin assembly

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