Examination of Slit Defect Inspection Method for Steel Bars Using Only DC Magnetic Field with the Velocity Effect
Year: 2024
Type: article
Abstract: eddy current, 3D nonlinear FEM, electromagnetic sensors C45, a ferromagnetic material, can be strengthened by heat treatment such as quenching and is widely used as a material for general mechanical parts such as springs in automobiles.However, the presence of defects or flaws can cause cracking during the quenching stage, and a high-speed inspection method for detecting defects is required.In this study, we proposed and examined an inspection method for detecting defects using only a DC magnetic field by moving a round steel bar material at a high speed of 1 m/s inside a ring-shaped permanent magnet and generating eddy currents due to the velocity effect.
Source: Sensors and Materials
DOI: 10.18494/sam5161
Authors: Masafumi Kuromizu, Yuji Gotoh
Institution: Oita University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $748
OpenAlex ID: W4402030551