Electromagnetic shielding properties of LPBF produced Fe2.9wt.%Si alloy

Abstract

Ferromagnetic materials are used in various applications: such as rotating electrical machines, wind turbines, electromagnetic shielding, transformers, and electromagnets. Compared to hard magnetic materials, their hysteresis cycles are featured by low values of coercive magnetic field and high permeability. The application of additive manufacturing to ferromagnetic materials is gaining more and more attraction. Indeed, thanks to a wider geometrical freedom, new topological optimized shapes for stator/rotor shapes can be addressed to enhance electric machines performances. However, the properties of the LPBF processed alloy compared to conventionally produced counterpart must be still addressed. Accordingly, this paper presents for the first time the use of the Laser Powder Bed Fusion (LPBF) for the manufacturing of Fe2.9wt.%Si electromagnetic shields. The process parameter selection material microstructure and the magnetic shielding factor are characterized.

Characterization of LPBF Produced Fe2.9wt.%Si for Electromagnetic Actuator

“…The abil-ity to produce customized parts with high precision and accuracy can lead to cost savings and reduced lead times in the production process. Overall, using LPBF offers numerous advantages over traditional manufacturing techniques, making it a promising avenue for future research and development in the manufacturing industry [25]. One of the most promising applications of the LPBF technique is in the production of electromagnetic actuators (EMA) [26,27,28], which are used in a wide range of industrial and consumer applications, such as robotics, aerospace, automotive, and medical devices.…”