About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Novel Approach to Manufacture Soft Magnetic Core with MIM (Metal-Insulation-metal) Structure
via Dual-Nozzle Material Extrusion (MEX) Technology |
Author(s) |
Taehyeob Im, Kwiyoung Lee, Jonghyeok Ahn, Suyeon Kim, Juyong Kim, Dongju Lee, Jai-Sung Lee, Jongryoul Kim, Caroline Sunyong Lee |
On-Site Speaker (Planned) |
Taehyeob Im |
Abstract Scope |
In this study, Dual-Nozzle Material Extrusion (MEX) printer has been developed to manufacture Soft Magnetic Core with MIM (metal-Insulation-metal) structure to minimize Eddy current loss by increasing its resistivity. To achieve this, layers composed of Fe-6.5wt.%Si layer/ MgO-based insulation layer/ Fe-6.5wt.%Si layer were designed to be extruded alternatively using Dual-Nozzle MEX printer as Fe-6.5wt.%Si is reported to have minimum coercivity. The insulation layer was printed between the Fe-6.5wt.%Si layers at its thicknesses of 0.1, 0.2, and 0.5 mm to find out its optimum thickness to minimize core loss. Finally, we have used spark plasma sintering (SPS) for the final component to achieve a high density of the part. The Microstructure at the interface between insulator and metal, resistance, apparent density, and BH analysis were observed for comparison. Therefore, we have proposed new method to suppress core losses by printing MIM structures based on Fe-6.5wt.%Si layers using dual-nozzle MEX technology. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |