Noncontact and nondestructive evaluation of heat-treated bearing rings using pulsed eddy current testing

Sha, Jingwei; Fan, Mengbao; Cao, Binghua; Liu, Baoling

doi:10.1016/j.jmmm.2020.167516

Cited by 18 publications

(4 citation statements)

References 37 publications

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“…Methods from the non-destructive testing group and quality management tools were used in the model because they are preferred in casting quality control and quality problem analysis. Many cited literature items confirm the effectiveness of applying the considered methods individually [ 41 , 85 , 86 , 87 , 88 , 89 , 90 , 93 , 94 , 95 , 96 , 97 ].…”

Section: Modelmentioning

confidence: 95%

Model of Diagnosing and Searching for Incompatibilities in Aluminium Castings

Pacana

Czerwińska

2021

Materials

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An essential element of any industry is castings, which is determined by the technical conditions for their reception. However, conducting production in the foundry technology is burdened with many difficulties associated with, for example, the inability to control all of the parameters that may affect the casting quality. Therefore, it is essential to undertake improvement actions in this area. Efforts are being made to use non-destructive testing (NDT) as a part of quality control, but these methods are rarely combined in a single diagnostic run. As a part of quality improvement, it is also essential to identify the root cause of the problem. For this reason, it is justified to develop a model of diagnosing and searching for non-conformities, which would combine NDT tests and quality management tools. The model included the visual, ultrasound, and eddy current examination in the diagnostic part, and the Pareto–Lorenz diagram correlated with ABC method, histogram, and 5WHY method (asking five questions why). The study’s originality is manifested in the combination of several NDT methods with quality management methods in one model. Using integrally configured methods in the proposed model, it was possible to: reduce diagnostic uncertainty, characterize the critical group of non-conformities, and identify the root causes of the quality problem. The model is a new and universal method that can be implied in any foundry company in order to ensure the stability of the production processes. The application of the model contributes to an increase in the detection speed and enables the reduction of non-conformities in aluminium castings, thus increasing the quality level of the offered products.

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Section: Modelmentioning

confidence: 95%

Model of Diagnosing and Searching for Incompatibilities in Aluminium Castings

Pacana

Czerwińska

2021

Materials

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“…Therefore, it is of great engineering significance to improve the crack detection capability of bearing rings and promote their quality [2]. At present, the defect detection methods for bearing rings include magnetic particle testing [3,4], eddy current testing [5,6], magnetic flux leakage (MFL) testing, ultrasonic testing [7,8], and machine vision testing [9][10][11]. MFL testing is widely used to evaluate various ferromagnetic materials.…”

Section: Introductionmentioning

confidence: 99%

Influence of curvature radius on the axial crack signal of the magnetic flux leakage detection for tapered roller bearing rings

Yang

Peng²,

Qiu³

et al. 2023

Front. Phys.

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Tapered roller bearings are widely used in heavy machinery, railway transportation, aviation, and other fields. Their quality and reliability are related to the operational safety of mechanical equipment. In the axial crack magnetic flux leakage (MFL) detection of the bearing ring, the MFL signals obtained by the sensor from different curvature radius of the surface are inconsistent, affecting the detection accuracy of cracks and subsequent quantitative analysis. In order to address the above problems, the finite element simulation is performed to analyze the influence of the surface curvature radius of the bearing ring on the magnetic field distribution inside the workpiece and the MFL signal in the circumferential magnetization. Through the parallel magnetic circuit, the difference in curvature radius is identified as the basic reason for non-uniform magnetization. On this basis, the compensation method based on the normalization of surface magnetization is proposed. Furthermore, the effectiveness of the compensation method is verified by experiments. The relative change in the amplitude of the crack MFL signal is reduced from 30% to 5%.

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“…A method to determine the wall thickness and conductivity of non-magnetic tubes using eddy-current measurements is presented in ref. [3], Pulsed eddy current (PEC) signals have been investigated as tools for the evaluation of plate thickness by using the reflection type PEC probe [4], Noncontact and nondestructive evaluation of heat-treated bearing rings have been carried out using pulsed eddy current testing [5].…”

Section: Introductionmentioning

confidence: 99%

Eddy current measurement in hollow conducting tube in electromagnetic forming process

Choudhary

Kolge²,

Kapoor³

et al. 2022

J. Inst.

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Electromagnetic forming (EMF) is a high strain rate metal deformation process that utilizes Lorentz force to expand or compress the conducting tube. Stored electrostatic energy of capacitor bank is discharged through solenoid coil which surrounds the conducting tube. Capacitor bank and solenoid coil form a series R-L-C circuit during current discharge through the coil and hence, the coil current is damped sinusoidal. Coil current produces time varying magnetic field which induces eddy current in conducting tube. Interaction of eddy current in the tube and magnetic field in air gap between tube and coil causes Lorentz force to expand or compress the conducting tube. The eddy current is a vital parameter in electromagnetic forming study and its measurement is almost unfeasible owing to very few mm gap between coil and conducting tube. Here we establish a novel method to determine the eddy current in a cylindrical tube, using a superposition theorem, when a damped sinusoidal current is passed through a finite solenoid coil. The present study uses a Al-Mg alloy tube to demonstrate this method of eddy current determination.

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Noncontact and nondestructive evaluation of heat-treated bearing rings using pulsed eddy current testing

Cited by 18 publications

References 37 publications

Model of Diagnosing and Searching for Incompatibilities in Aluminium Castings

Model of Diagnosing and Searching for Incompatibilities in Aluminium Castings

Influence of curvature radius on the axial crack signal of the magnetic flux leakage detection for tapered roller bearing rings

Eddy current measurement in hollow conducting tube in electromagnetic forming process

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