Design and fabrication of an open-architecture selective laser melting system
Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.
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| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2017
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| Online Access: | http://hdl.handle.net/1721.1/108983 |
| _version_ | 1811080505236389888 |
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| author | Baker, Stuart Polak |
| author2 | A. John Hart. |
| author_facet | A. John Hart. Baker, Stuart Polak |
| author_sort | Baker, Stuart Polak |
| collection | MIT |
| description | Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017. |
| first_indexed | 2024-09-23T11:32:43Z |
| format | Thesis |
| id | mit-1721.1/108983 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T11:32:43Z |
| publishDate | 2017 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1089832019-04-10T21:42:38Z Design and fabrication of an open-architecture selective laser melting system Baker, Stuart Polak A. John Hart. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. Electrical Engineering and Computer Science. Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017. Cataloged from PDF version of thesis. Includes bibliographical references (pages 167-179). Additive manufacturing (AM) is a rapidly advancing manufacturing paradigm that involves selective placement of material, layer-by-layer, as determined by a three-dimensional digital model. AM allows for freeform geometries and optimized structures that are impractical or impossible to create with traditional manufacturing practices. Among several mainstream AM methods, powder bed fusion is compatible with both plastics and metals, and thereby allows construction of a wide spectrum of end-use parts. A significant challenge in exploring this process from a research perspective is the predominance of commercial systems which are costly and offer limited flexibility to the user. To address this challenging lack of access, this thesis develops a low-cost and open-architecture laser powder bed fusion metal printer to enable the exploration of new materials and process concepts. Starting with a broad review of additive manufacturing, this thesis then explains the powder bed fusion process and reviews the design considerations for powder bed fusion equipment. This understanding is then applied to design an open-architecture galvanometer-driven optical scanning system. In addition, two deposition chambers are constructed, including a high-pressure vessel with a novel multi-layer recoating build platform that allows for the study of pressure in the powder bed fusion process. The operational performance is then evaluated, and the capability to achieve programmed scanning of the laser is demonstrated through point-wise and raster scan melting. by Stuart Polak Baker. S.M. 2017-05-11T19:59:07Z 2017-05-11T19:59:07Z 2017 2017 Thesis http://hdl.handle.net/1721.1/108983 986497580 eng MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. http://dspace.mit.edu/handle/1721.1/7582 179 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Electrical Engineering and Computer Science. Baker, Stuart Polak Design and fabrication of an open-architecture selective laser melting system |
| title | Design and fabrication of an open-architecture selective laser melting system |
| title_full | Design and fabrication of an open-architecture selective laser melting system |
| title_fullStr | Design and fabrication of an open-architecture selective laser melting system |
| title_full_unstemmed | Design and fabrication of an open-architecture selective laser melting system |
| title_short | Design and fabrication of an open-architecture selective laser melting system |
| title_sort | design and fabrication of an open architecture selective laser melting system |
| topic | Electrical Engineering and Computer Science. |
| url | http://hdl.handle.net/1721.1/108983 |
| work_keys_str_mv | AT bakerstuartpolak designandfabricationofanopenarchitectureselectivelasermeltingsystem |