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材料的电磁加工是当今材料加工技术领域研究和发展的一个重点本文简述作为材料电磁加工技术理论基础的电磁流体力学的基本内容，给出电磁场各种功能的基本原理，着重阐述电磁力和焦耳热在金属熔体电磁成形与凝固过程中的应用。最后，介绍近年来开展的深过冷快速定向凝固、太阳能级硅电磁约束感应熔炼和超高梯度电磁约束成形定向凝固技术等方面研究的成果。
The electromagnetic processing of materials is a key point in the field of material processing technology research and development. This paper briefly describes the basic content of electromagnetic fluid mechanics as the theoretical basis of material electromagnetic processing technology, gives the basic principle of various functions of electromagnetic field, focuses on the electromagnetic force and Joule Application of heat in the process of electromagnetic forming and solidification of metal melt. Finally, the achievements in recent years, such as deep subcooling rapid directional solidification, solar-grade silicon electromagnetic confinement induction melting and ultra-high gradient electromagnetic confinement directional solidification technology, are introduced.