DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Sohn, Hoon | - |
dc.contributor.advisor | 손훈 | - |
dc.contributor.author | Eden Binega, Yemesegen | - |
dc.date.accessioned | 2022-04-15T07:56:39Z | - |
dc.date.available | 2022-04-15T07:56:39Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=948354&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/294862 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 건설및환경공학과, 2021.2,[iii, 36 p. :] | - |
dc.description.abstract | Additive manufacturing (AM) is a powerful and promising manufacturing technology. Advances in AM have led to increasing demands for its applications | - |
dc.description.abstract | however, controlling the geometry of deposited objects during the AM process remains a major challenge. Geometry control and compliance to a target geometry are some of the key concerns for AM, especially for a prototype requiring high precision in its geometry. In this study, an online geometry estimation methodology for continuous monitoring during the direct energy deposition (DED) process was developed using a laser line scanner. The proposed methodology comprises (1) real-time scanning of each deposited track’s profile, (2) online extraction of the track’s geometry, and (3) online plotting and comparison of the as-designed and as-built models. In the methodology, data analysis following real-time scanning, such as geometry discrepancy estimation and online plotting of the as-built model, is attained for both single- and multiple-layered objects. The effectiveness of the developed methodology is examined by comparing the profiles of the single- and multiple-layered objects estimated during the DED process with the reference profiles obtained via laser line scanning and microscopy after the completion of the DED process. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Online geometry monitoring▼alaser line scanning▼adirected energy deposition▼aadditive manufacturing | - |
dc.subject | 실시간 형상 모니터링▼a레이저 라인 스캐닝▼a실시간 NDT▼a직접 에너지 적층▼a적층 가공 | - |
dc.title | Online geometry monitoring during directed energy deposition additive manufacturing using laser line scanning | - |
dc.title.alternative | 직접 에너지 증착 적층 제조 중 레이저 라인 스캐닝을 사용한 온라인 형상 모니터링 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :건설및환경공학과, | - |
dc.contributor.alternativeauthor | 에덴 비네가 예메세겐 | - |
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