Title :
Improved design of magnetizer for magnetic powder flaw detection with AC nonlinear analysis
Author :
Wajima, Kiyoshi ; Umetsu, Kenji ; Naito, Syuuji ; Ueyama, Takatsugu ; Sonoda, Shinji
Author_Institution :
Nippon Steel Corp., Chiba, Japan
fDate :
9/1/1996 12:00:00 AM
Abstract :
Some problems owing to the magnetic field distribution often occur in magnetic powder flaw detection. For example, magnetic flux density concentrates locally because of geometry and configuration of magnetization equipment, and hence incorrect detection is caused. To overcome the problem two different techniques have been applied to a model of a square steel billet. The solution was obtained by using an AC nonlinear FEM analysis
Keywords :
finite element analysis; flaw detection; magnetic particles; magnetisation; AC nonlinear FEM analysis; magnetic field distribution; magnetic flux density; magnetic powder flaw detection; magnetization; magnetizer design; square steel billet; Billets; Magnetic analysis; Magnetic flux; Magnetic flux density; Magnetic shielding; Maxwell equations; Powders; Saturation magnetization; Steel; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
