High-throughput extrusion-based additive manufacturing
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.
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| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2016
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| Online Access: | http://hdl.handle.net/1721.1/101812 |
| _version_ | 1811091732829306880 |
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| author | Go, Jamison |
| author2 | A. John Hart. |
| author_facet | A. John Hart. Go, Jamison |
| author_sort | Go, Jamison |
| collection | MIT |
| description | Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015. |
| first_indexed | 2024-09-23T15:07:11Z |
| format | Thesis |
| id | mit-1721.1/101812 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T15:07:11Z |
| publishDate | 2016 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1018122019-04-12T13:59:53Z High-throughput extrusion-based additive manufacturing High-throughput extrusion-based AM Go, Jamison A. John Hart. Massachusetts Institute of Technology. Department of Mechanical Engineering. Massachusetts Institute of Technology. Department of Mechanical Engineering. Mechanical Engineering. Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015. Cataloged from PDF version of thesis. Includes bibliographical references (pages 171-179). Additive manufacturing (AM), the process of building objects layer by layer from a three dimensional digital model, is gaining significance due to its ability to create unique geometries and/or novel material compositions while spanning a wide range of length scales. However, the viability of using AM for the production of end-use parts hinges on improvements to production speed without making sacrifices to quality. This thesis seeks to understand the rate-limits to extrusion-based AM, commonly referred to as fused deposition modeling (FDM), and to demonstrate this understanding via the design and fabrication of a high-throughput extrusion AM platform. Three subsystems - the pinch wheel extruder, the conduction liquefier, and the open loop series gantry - were identified as rate limiting to conventional FDM systems via module level experimentation and analysis. These limitations motivated the development of three alternate mechanisms -a screw-feed extruder, a laser-heated extruder, and H-frame gantry - which are designed to overcome the limitations of conventional techniques. These mechanisms are combined into a high-throughput desktop-scale prototype, called FastFDM. Using the FastFDM system, test parts are fabricated at twice the material deposition rate of state-of-the-art machines while maintaining comparable accuracy and resolution. The FastFDM approach has promising future applications to the extrusion AM of nanocomposite polymer resins, high-throughput AM of high performance thermoplastics, and adaptation to large-scale extrusion AM systems. by Jamison Go. S.M. 2016-03-25T13:37:21Z 2016-03-25T13:37:21Z 2015 2015 Thesis http://hdl.handle.net/1721.1/101812 941271845 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 179 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Go, Jamison High-throughput extrusion-based additive manufacturing |
| title | High-throughput extrusion-based additive manufacturing |
| title_full | High-throughput extrusion-based additive manufacturing |
| title_fullStr | High-throughput extrusion-based additive manufacturing |
| title_full_unstemmed | High-throughput extrusion-based additive manufacturing |
| title_short | High-throughput extrusion-based additive manufacturing |
| title_sort | high throughput extrusion based additive manufacturing |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/101812 |
| work_keys_str_mv | AT gojamison highthroughputextrusionbasedadditivemanufacturing AT gojamison highthroughputextrusionbasedam |