美国能源部（DOE）的研究人员关键材料研究所(CMI) are using metal additive manufacturing in the hunt for a new material with “exceptional magnetic properties.”
Using Optomec’s激光工程网塑形（镜头）过程，该团队能够通过无数的铜合金成分进行分类，以寻找更便宜，更丰富的替代品，替代稀土刚牛皮铁（NDFEB）磁铁。
该项目的最新结果现已在线发布TheJournal of The Minerals, Metals & Materials Society (JOM).
Clip from “Super-strong neodymium magnets destroying everyday items in slow motion” byMagnet Experton YouTube.
找到市场上最强磁铁的替代方案
CMI是由Ames Laboratory，爱荷华州，一个与公共安全和资源管理有关的国家母鹿实验室，包括合成添加剂制造的新金属雷电竞充值.
Under this current research directive, the purpose of the CMI is to discover “ways to eliminate and reduce reliance on rare-earth metals and other materials critical to the success of clean energy technologies.”
Neododium目前是最广泛使用，最强的商业可用磁铁类型。它也曾在3D printed magnet development科学家的项目加拿大国家研究委员会(NRC) and橡树岭国家实验室.
然而，作为一种稀土金属，DOE表示有兴趣找到替代霓虹灯的替代品，并且在该项目中，CMI正在重新访问已知的磁铁材料，以释放新的潜力。
在小时内确定潜力
LENS, a type of directed energy deposition (DED) technology, is used by CMI to speed screen samples of new cerium alloy compositions. On average, a range of samples (around 30 small alloy rods) could be 3D printed in around two hours instead of weeks when compared to traditional manufacturing methods.
To verify the results, the most promising 3D printed samples were manufactured in a second run using traditional manufacturing methods, and confirmed the CMI’s initial findings.
“由于需要开发必要的微观结构，使用激光打印来确定散装材料的潜在永久磁铁阶段，这是非常具有挑战性的。”解释CMI scientist Ikenna Nlebedim, “But this research shows that additive manufacturing can be used as an effective tool for rapidly and economically identifying promising permanent magnet alloys.”
“快速评估用于永久磁应用的CE-CO-FE-CU系统”在线发布乔姆。It is co-authored by F. Meng, R. P. Chaudhary, K. Gandha, I. C. Nlebedim, A. Palasyuk, E. Simsek, M. J. Kramer and R. T. Ott.
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特色图显示了基于Optomec Ded的镜头技术，3D打印到预制金属表面上。通过Optomec的照片
