Electrolytic etching device and test system for cutting residual stress distribution test

Abstract

The invention discloses an electrolytic etching device for cutting residual stress distribution test and a test system with the same.The electrolytic etching device comprises a loading platform, a guide rail, a support, a first mounting rack, a second mounting rack, an etching stage, a mounting piece and a displacement sensor.The support is arranged on the guide rail in a manner of rotating among the displacement test position, the electrolytic etching positon and the stress test position; each of the first and second mounting racks is arranged on the support in a vertically movable manner; the etching stage is movably arranged on the first mounting rack and provided with an accommodating cavity, and the bottom wall of the accommodating cavity is provided with an opening; the mounting piece is capable of moving along the radial direction of the circle; the displacement sensor is arranged on the second mounting rack in a manner of being capable of moving along the radial direction of the circle, the support is located at the displacement test position, and the first direction and the radial direction of the circle are located on the horizontal plane.The electrolytic etching device for cutting residual stress distribution test has the advantages of short test time, high test efficiency, high measurement precision and the like.

Description

technical field [0001] The present invention relates to the mechanical field, in particular, to an electrolytic corrosion device for testing the distribution of cutting residual stress, and to a test system with the electrolytic corrosion device for testing the distribution of cutting residual stress. Background technique [0002] The residual stress on the surface of the workpiece has a very important impact on the static strength, corrosion resistance, fatigue strength and dimensional stability of the workpiece, especially in important industries such as aerospace, military, and energy, where many mechanical parts work in harsh environments , the residual stress has a particularly significant effect on its service performance. Cutting is the last processing procedure of many mechanical parts, and the complex forces and thermal loads in the cutting process have a very significant impact on the stress distribution on the surface of the workpiece. [0003] In recent years, t...

AI Technical Summary

Problems solved by technology

However, because the penetration depth of X-rays in common engineering metal materials is shallow, to test the depth distribution of residual stress under the processed surface, it is necessary to repeatedly remove materials with a thickness of several microns to tens of microns layer by layer and then repeatedly test the surface stress.

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