3D printing magnet and preparation method thereof

The invention relates to a 3D printing magnet and a preparation method thereof. The interior of the 3D printing magnet is composed of a plurality of magnetic units in different magnetization directions, and different magnetic units on the same layer of the magnet have different orientation directions, wherein after printing and magnetizing of the first magnetic unit are finished, printing and magnetizing of the second magnetic unit are performed, and each magnetic unit is kept in a magnetized state after printing is finished. The 3D printing magnet has anisotropy, orientation and magnet magnetizing are completed at the same time in the 3D printing process, and secondary magnetizing is not needed. 本发明涉及一种3D打印磁体及其制备方法。该3D打印磁体内部由不同磁化方向的多个磁性单元组成，磁体同一层的不同磁性单元之间具有不同取向方向；其中，第一磁性单元打印和充磁磁化结束后再进行第二磁性单元打印和充磁磁化，每个磁性单元在打印结束后保持磁化状态。本申请的3D打印磁体具有各向异性，而且在3D打印过程中同时完成取向和磁体充磁，无需再次充磁。