About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Printed Electronics and Additive Manufacturing of Advanced Functional Materials and Devices—From Processing Concepts to Applications
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| Presentation Title |
Development of L-DED Technology for Depositing Dissimilar Materials in Sub-Millimeter Narrow Grooves |
| Author(s) |
Hajime Kato, Kan-ichi Tsunoda, Hideaki Ikehata, Takashi Maeshima, Takuya Kita, Kosho Wada, Mio Ban, Mitsuka Morimoto |
| On-Site Speaker (Planned) |
Hajime Kato |
| Abstract Scope |
L-DED (Laser Directed Energy Deposition) is an additive manufacturing method used not only for fabricating complex geometries but also for locally depositing dissimilar materials and repairing components. To broaden DED applications, this study developed a technology for high-precision deposition of dissimilar materials into sub-millimeter-wide grooves.
A dedicated optical system is designed to generate rectangular beams with enhanced parallelism, making them suitable for processing deep groove structures. This approach enabled the deposition of dissimilar materials into a narrow groove only 0.4 mm wide with 1.5 mm depth while suppressing pore formation. As an application example of this technology, a SUS alloy (non-magnetic material) was locally formed in the bridge area (magnetic material) located on the outer circumference of a motor’s rotor to optimize the magnetic flux path. As a result, the motor's torque increased by 9% and efficiency improved by 1%, demonstrating the usefulness of this technology. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Process Technology, |