Three dimensional printing : solenoid value-jet for continuous high-speed application
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2005
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| Online Access: | http://hdl.handle.net/1721.1/9262 |
| _version_ | 1811091592705998848 |
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| author | Tan, Phay Kiat, 1974- |
| author2 | Emanuel M. Sachs. |
| author_facet | Emanuel M. Sachs. Tan, Phay Kiat, 1974- |
| author_sort | Tan, Phay Kiat, 1974- |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000. |
| first_indexed | 2024-09-23T15:04:50Z |
| format | Thesis |
| id | mit-1721.1/9262 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T15:04:50Z |
| publishDate | 2005 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/92622019-04-12T14:30:03Z Three dimensional printing : solenoid value-jet for continuous high-speed application Tan, Phay Kiat, 1974- Emanuel M. Sachs. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000. Includes bibliographical references (leaves 130-131). 3D Printing is the rapid prototyping of parts by the deposition of a binder material in successive layers onto specific regions of a powder substrate. The current challenge in 3 DP(TM) is the demand for larger built-volume in a shorter time with a high level operational reliability. The solenoid valve-jet printhead possesses key characteristics, which can be used in the design of a scaled-up 3 DP(TM) machine. An experimental study was conducted on the performance of the solenoid valve jet under variable pressure and operational frequency. A flow-rate of 5cm 3/min is obtainable at a pressure of 10psi. A linear relationship is observed between pressure and fluid flow-rate, with an upper operational limit of 25psi. An individual valve-jet evaluated is capable of producing fluid stream with a variability of ± 0.01 mm on the front edge and ± 0.1 mm on the trailing edge. A build time of 4.5 hours, with a single valve-jet printing water into PVA load stainless steel powder as the material system, is required for a volume of 150x300x30 mm with the bulk of time taken by the drying process. Continuous 5 days run of a valve-jet indicate very little deterioration in performance with a flow-rate variance of ±0.2cm 3/min over the test duration. A printhead made up of two valve-jets printing bidirectionally was able to produce geometrical parts but with stepped edges caused the performance variability between different valve-jets. Each solenoid valve-jet needs to be calibrated offline and those with similar capabilities can be put together onto a single printhead. These experimental results indicate that an array of solenoid valve-jet can be assembled into the printhead of a larger scaled-up 3 DP(TM) machine to fabricate larger and accurate parts with minimal maintenance and low risks of failure. by Phay Kiat Tan. S.M. 2005-08-22T23:54:55Z 2005-08-22T23:54:55Z 2000 2000 Thesis http://hdl.handle.net/1721.1/9262 45595477 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 131 leaves 12884568 bytes 12884325 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Tan, Phay Kiat, 1974- Three dimensional printing : solenoid value-jet for continuous high-speed application |
| title | Three dimensional printing : solenoid value-jet for continuous high-speed application |
| title_full | Three dimensional printing : solenoid value-jet for continuous high-speed application |
| title_fullStr | Three dimensional printing : solenoid value-jet for continuous high-speed application |
| title_full_unstemmed | Three dimensional printing : solenoid value-jet for continuous high-speed application |
| title_short | Three dimensional printing : solenoid value-jet for continuous high-speed application |
| title_sort | three dimensional printing solenoid value jet for continuous high speed application |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/9262 |
| work_keys_str_mv | AT tanphaykiat1974 threedimensionalprintingsolenoidvaluejetforcontinuoushighspeedapplication |