Plastic deformation modeling of backward extrusion process for Nd-Fe-B ring magnets

详细信息	查看全文 | 推荐本文 |

• 作者：Huijie Wang^a ; ^{whjwhj319@sina.com} ; Min Lin^b ; Bin lai^a ; Minggang Zhu^a ; Wei Pan^a ; Wei Li^a
• 关键词：Plastic deformation modeling ; Backward extrusion process ; Nd&ndash ; Fe&ndash ; B ring magnet
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2012
• 期刊代码：31_03048853
• 类别：ph
• 出版时间：May, 2012
• 卷：324
• 期：10
• 页码：1791-1794
• 文件大小：532 K

摘要

3D finite element-based software (3D DEFORM) was used to simulate the thermal extrusion process of nanocrystalline magnetic ring. The effective stresses and effective strains for a ring magnet at different stages of the extrusion process were determined by simulation. The effective strains at different stages are displayed. The effective stresses on the cross section are determined by simulation. The test results of magnetic properties were of good validation of the three-dimensional finite element analysis for nanocrystalline backward extruded ring. 3D finite element-based plastic deformation simulation is proved to be an effective way to analyze the hot extrusion process of nanocrystalline magnetic ring, and to provide guiding for the mold design of thermal extrusion.