Abstract Extrusion based big area additive manufacturing process is utilized for fabrication of dense anisotropic bonded magnets. High loading fraction (≥70 vol%) of magnequench anisotropic Nd–Fe–B powder in nylon is used for preparing anisotropic bonded magnets. A higher energy product of ~143.2 kJ/m3 is obtained for the post printed magnetic field aligned at 1 Tesla. These findings make an important step towards the fabrication of gap magnets with energy product between ferrite and Nd–Fe–B sintered magnets. Moreover, printed bonded magnets exhibited better thermal stability, mechanical properties and superior magnetic properties compared to commercial injection molded magnets.

中文翻译：

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高密度各向异性 Nd-Fe-B 粘结磁体的增材制造

摘要 基于挤压的大面积增材制造工艺被用于制造致密的各向异性粘结磁体。尼龙中magnequench 各向异性Nd-Fe-B 粉末的高负载率（≥70 vol%）用于制备各向异性粘结磁体。对于以 1 特斯拉对齐的后印刷磁场，获得了 ~143.2 kJ/m3 的更高能量积。这些发现为制造具有铁氧体和 Nd-Fe-B 烧结磁体之间能量积的间隙磁体迈出了重要的一步。此外，与商业注塑磁体相比，印刷粘结磁体表现出更好的热稳定性、机械性能和优异的磁性能。