Ultrasonic rolling extrusion 42CrMo bearing ring surface layer performance optimization method based on Taguchi algorithm

A bearing ring, Taguchi algorithm technology, applied in neural learning methods, design optimization/simulation, geometric CAD, etc., can solve the problems of easy fatigue on the surface of the ring, affecting the service life of the bearing, etc., to achieve a good surface condition, improve accuracy accuracy, improved accuracy and reliability

Pending Publication Date: 2021-10-29
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0002] As a key component of modern mechanical equipment, bearings are subjected to cyclic loads, and the surface of their rings is prone to fatigue, which in turn affects the service life of the bearings

Method used

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  • Ultrasonic rolling extrusion 42CrMo bearing ring surface layer performance optimization method based on Taguchi algorithm
  • Ultrasonic rolling extrusion 42CrMo bearing ring surface layer performance optimization method based on Taguchi algorithm
  • Ultrasonic rolling extrusion 42CrMo bearing ring surface layer performance optimization method based on Taguchi algorithm

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Embodiment Construction

[0058]The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] The present invention proposes a method for optimizing the performance of the surface layer of a 42CrMo bearing ring by ultrasonic rolling based on the Taguchi algorithm, comprising the following steps:

[0060] S1. According to the process parameters of ultrasonic rolling extrusion of 42CrMo bearing rings and the performance parameters of the surface layer of 42CrMo bearing rings, an orthogonal test is carried out.

[0061] In this embodiment, the process parameters of ultrasonic rolling extrusion of 42CrMo bearing rings are rotational speed, feed speed, amplitude and static pressure, and the performance characterization parameters of the surface layer of 42CrMo bearing rings are surface roughness, residual stress and surface work hardening degree; based on This is an orthogonal experiment with four factors and five levels.

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Abstract

The invention discloses an ultrasonic rolling extrusion 42CrMo bearing ring surface layer performance optimization method based on a Taguchi algorithm, and relates to a bearing ring surface performance strengthening treatment technology. The method comprises the following steps: carrying out a four-factor five-level orthogonal test according to process parameters of an ultrasonic rolling extrusion 42CrMo bearing ring and surface layer performance characterization parameters of the bearing ring; then analyzing the influence rule of each process parameter on the characterization parameters by adopting a single factor method, then obtaining the weight of each process parameter on each characterization parameter by adopting an analytic hierarchy process, and establishing a surface layer performance characterization system; establishing a BP neural network prediction model based on orthogonal test data and a surface layer performance characterization system, and verifying the accuracy of the BP neural network prediction model; and optimizing an orthogonal test result through a Taguchi algorithm to obtain an optimal process parameter combination. According to the invention, the surface layer performance of the 42CrMo bearing ring can be accurately controlled, and then the surface layer performance of the bearing ring is improved.

Description

technical field [0001] The invention relates to the technical field of surface performance strengthening treatment of bearing rings, in particular to a method for optimizing surface performance of 42CrMo bearing rings by ultrasonic rolling extrusion based on Taguchi algorithm. Background technique [0002] As a key component of modern mechanical equipment, bearings are subjected to cyclic loads, and the surface of their rings is prone to fatigue, which in turn affects the service life of the bearing. In order to improve the surface performance of the bearing ring and prolong the service life, surface strengthening technology is usually used to improve the microscopic appearance of the metal surface and the physical and mechanical properties of the surface layer, so as to solve the problems of bearing wear, corrosion and fatigue resistance. [0003] Through the ultrasonic rolling extrusion processing test, simulation analysis and optimization research of processing parameters...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06F30/17G06N3/04G06N3/08
CPCG06F30/27G06F30/17G06N3/04G06N3/084
Inventor 王晓强付浩然靳园园王浩杰王排岗张彪曹丽茹
Owner HENAN UNIV OF SCI & TECH
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