Vibration aging correction method for deformation of cylindrical parts and anti-deformation restraint fixture

Abstract

The invention provides a vibratory stress relief corrected cylindrical part deforming method in order to solve the problem that a part deforms once again because internal stress can not be relieved during the deformation correction of the traditional cylindrical part. The method comprises the following steps of: firstly, installing the cylindrical part in such a way that the inherent frequency ofresonant frequency of the cylindrical part is within the operating range of a vibration exciter as vibratory stress relief equipment, wherein the installation methods comprise simply support installation, cantilever installation and segment-connected installation; then, carrying out anti-deformation restriction at the deformed position of the deformed part by using the fixture; and finally, carrying out vibratory stress relief on the cylindrical part. The anti-deformation restricting fixture used for realizing the method comprises two semicircular hoop type anti-deformation restricting fixture bodies tightened by anti-deformation restricting fixture bolts, and anti-deformation adjusting screws are arranged on the cambered surfaces of the semicircular hoops. Through the method provided by the invention, the dimension and shape errors of the processed part can be ensured to be stable for long term, materials and processing cost are saved, and the processing efficiency and the processingsuccess rate are high.

Description

technical field [0001] The invention relates to a method for correcting the deformation of a part, in particular to a method for correcting the deformation of a cylindrical part by using vibration aging and an anti-deformation constraining fixture specially used for the method. Background technique [0002] During the processing of casting, forging, cold drawing, hot extrusion and heat treatment of cylindrical parts, certain residual stress will be generated inside the part, and sometimes this residual stress is still very large. After the processing of removing material by turning, milling, grinding, etc., due to the removal of material, the distribution of the original residual stress inside the part is changed, which will cause deformation and dimensional out-of-tolerance of the processed part. [0003] The existing deformation correction technology usually applies mechanical force to the deformed part to force it to reverse deformation in the opposite direction of deform...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the internal stress cannot be eliminated during the deformation correction of tradit...

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