Research on Weak Magnetic Inspection of Axle Steel Carburizing Layer Depth
Journal Title: Automobile Technology & Material - Year 2024, Vol 39, Issue 1
Abstract
To deal with the limitation of the existing non- destructive testing technology for the depth of the carburized layer of axle steel, a weak magnetic detection method is proposed. Since the stress concentrates at the junction of the carburized layer and its heart and can’t be eliminated, and then externally show a specific magnetic induction intensity for non. By collecting magnetic field signals from different samples of axle steel and different parts of axle steel, we analyzed the corresponding relationship between magnetic induction intensity amplitude and depth,and constructed a mathematical model for weak magnetic detection. The test results show that: spline outer circle (standard thickness/inspection thickness/absolute error): 3.50mm/3.57mm/0.07mm; rod outer circle: 4.30mm/4.46mm/0.16mm; R- angle: 4.00mm/3.86mm/-0.14mm. The overall relative error of the inspection accuracy is less than 5%,which meets the actual needs of the factory inspection.
Authors and Affiliations
Qiu Pengchuang, Yu Runqiao, Gui Changcheng, Chen Wang
Keywords
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- EP ID EP731935
- DOI 10.19710/J.cnki.1003-8817.20220403
- Views 50
- Downloads 0
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