Machining method of weak-rigidity thin-wall hollow structure part

Abstract

A machining method of a weak-rigidity thin-wall hollow structure part comprises the following steps that the front face and the back face of the weak-rigidity thin-wall hollow structure part are subjected to rough cutting machining, allowance is reserved at a laser cabin, and the reserved allowance serves as a process block; vibration aging treatment is conducted on the weak-rigidity thin-wall hollow structure part through a vibration stress relief device, and the residual stress of the structure part is eliminated; the outer side structure or the inner side structure of the weak-rigidity thin-wall hollow structure part is subjected to finish cutting machining; and the flying wall process block is fixedly installed on the inner side surface or the outer side surface of the weak-rigidity thin-wall hollow structure part, and the inner side structure or the outer side structure of the weak-rigidity thin-wall hollow structure part is subjected to finish cutting machining. By means of the machining method, machining deformation of the weak-rigidity thin-wall structure part is effectively controlled and reduced, and the machining quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of mechanical processing of aerospace parts, in particular to a processing method for weakly rigid thin-walled hollow structural parts. Background technique [0002] The processing variability of weakly rigid structural parts widely exists in aerospace, aviation, automobile, shipbuilding and other machinery manufacturing industries and chemical industries. There are many processing difficulties in the production and processing of weakly rigid thin-walled parts, such as high material removal rate, complex part structure, many curved surface structures, and high precision requirements for size and position matching. After processing, the parts usually have processing deformations such as bending, twisting, and combination of bending and twisting, which make it difficult for the parts to meet the design requirements, and even become waste products in severe cases. Therefore, in addition to the precision requir...

AI Technical Summary

Problems solved by technology

There are many processing difficulties in the production and processing of weakly rigid thin-walled parts, such as high material removal rate, complex part structure, many curved surface structures, and high precision requirements for size and position matching.

After processing, the parts usually have processing deformations such as bending, twisting, bending and torsion combination, which makes it difficult for the parts to meet the design requirements, and even become waste products in severe cases.

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