L-PBF 공정으로 제조된 Nd-Fe-B계 영구자석의 기판 가열에 따른 미세조직과 자기적 특성 변화
(주)코리아스칼라
- 최초 등록일
- 2023.06.19
- 최종 저작일
- 2023.04
- 7페이지/ 어도비 PDF
- 가격 4,000원
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서지정보
ㆍ발행기관 : 한국분말야금학회
ㆍ수록지정보 : 한국분말야금학회지 / 30권 / 2호
ㆍ저자명 : 김연우, 박하음, 김태훈, 김경태, 유지훈, 최윤석, 박정민
목차
Abstract
1. Introduction
2. Expermental
3. Results and Discussion
3.1. 최적 공정 변수 탐색
3.2. 밀도 분석
3.3. 자기적 특성 분석
4. Conclusion
Acknowledgement
References
영어 초록
Because magnets fabricated using Nd-Fe-B exhibit excellent magnetic properties, this novel material is used in various high-tech industries. However, because of the brittleness and low formability of Nd-Fe-B magnets, the design freedom of shapes for improving the performance is limited based on conventional tooling and postprocessing. Laserpowder bed fusion (L-PBF), the most famous additive manufacturing (AM) technique, has recently emerged as a novel process for producing geometrically complex shapes of Nd-Fe-B parts owing to its high precision and good spatial resolution. However, because of the repeated thermal shock applied to the materials during L-PBF, it is difficult to fabricate a dense Nd-Fe-B magnet. In this study, a high-density (>96%) Nd-Fe-B magnet is successfully fabricated by minimizing the thermal residual stress caused by substrate heating during L-PBF.
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