Title :
3-D particulate modeling for simulation of compaction in magnetic field
Author :
Kitahara, Harunori ; Kotera, Hidetoshi ; Shima, Susumu
Author_Institution :
Dept. of Mech. Eng., Kyoto Univ., Japan
fDate :
7/1/2000 12:00:00 AM
Abstract :
The purpose of this study is to investigate the behavior of magnetic powders during compaction in an applied magnetic field, which is a common manufacturing process for producing permanent magnets. We employ a nonspherical axi-symmetric particle model and carry out simulation of compaction in a magnetic field to study the alignment of the easy axes. Compacting and lateral pressures appear to change by the application of magnetic held. The results of compacting pressures show qualitative agreement with experimental ones, and the alignment of the easy axes is significantly influenced by the application of magnetic field
Keywords :
boron alloys; densification; ferromagnetic materials; iron alloys; magnetic anisotropy; magnetic particles; neodymium alloys; permanent magnets; powder technology; 3-D particulate modeling; Nd-Fe-B; Nd-Fe-B magnetic powder; applied magnetic field; compaction simulation; easy axis alignment; lateral pressure; magnetic powder compaction; manufacturing process; nonspherical axisymmetric particle model; permanent magnets; Atmospheric modeling; Compaction; Magnetic field measurement; Magnetic fields; Magnetic flux; Magnetic materials; Magnetic properties; Permanent magnets; Powders; Shape;
Journal_Title :
Magnetics, IEEE Transactions on
