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Showing 1 to 20 of 102 for “"Three-dimensional printing"”.
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Tungsten carbide-cobalt by Three Dimensional Printing
Three Dimensional Printing is an additive manufacturing process for rapid prototyping ceramic and metallic parts [Sachs, et al, 1990]. Green (not sintered) tungsten carbide-cobalt parts must have a density greater than 50% of the theoretical density, 14.9 g/cc, for proper sintering and …
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Powder layer generation for three dimensional printing
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1992.
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Three dimensional printing with fine metal powders
… and the effect of print parameters on printing with fine metal powders have been examined. Powder spreading experiments were conducted to examine the limits of layer thickness and packing density. 420 ss, S-7 tool steel, and 316L ss powderbed beds were generated in fifty micron layers. …
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Microstructure and particle arrangement in three dimensional printing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1992.
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Droplet-powder impact interaction in three dimensional printing
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Low shrinkage metal skeletons by three dimensional printing
Three Dimensional Printing (3DP) is a process for the rapid fabrication of three dimensional parts directly from computer models. A solid object is created by printing a sequence of two dimensional layers. The creation of each layer involves the spreading of a thin layer of powdered material …
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High density bimodal parts by three dimensional printing
Three Dimensional Printing (3DP) is a rapid prototyping process that allows for the fabrication of injection molding tooling from computer generated models. Due to market demands for harder, more robust tooling, improving the material properties and the geometric control of 3DP parts has been a …
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Fabrication of glass-ceramic components via three dimensional printing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1995.
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Formulation of oral dosage forms by three dimensional printing
… a method of solid freeform fabrication known as three dimensional printingTM (3DPTM). A microcrystalline cellulose powder was used in combination with pH-dependent and permeable polymeric binder solutions. Release studies in acidic media were performed using both dye and drug (antihistamine) as …
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Production of hard tissue scaffolds using three-dimensional printing method
… This work investigates the ability of the 3D printing technology to manufacture intricate bone scaffold geometries from biocompatible calcium phosphate based materials. Initial investigations with the proprietary materials showed that predicted directional mechanical behaviour can be realised. …
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Fused deposition modelling three-dimensional printing of solid dosage forms
Three-dimensional printing (3DP) is a widely used technique for the design and manufacture of complex solid dosage forms with the objective of formulating personalized medicines and on-demand manufacturing. Among commercially available models, fused deposition modelling 3D-printing (FDM-3DP) has …
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Simultaneous three-dimensional printing and frontal polymerization of dicyclopentadiene resin
Made available in DSpace on 2019-08-23T20:48:28Z (GMT). No. of bitstreams: 2 AW-THESIS-2019.pdf: 2581942 bytes, checksum: f25f39006abf6b6f01072739dee5f37a (MD5) LICENSE.txt: 4206 bytes, checksum: 4fc2bb1dd4f3bcaa0e8d3cc711596d1a (MD5) Previous issue date: 2019-04-26
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Rehardenable materials system with diffusion barrier for three-dimensional printing
Three-Dimensional Printing (3DP) is a solid freeform fabrication process being developed for the direct manufacture of functional tooling and prototypes from a computer solid model. One of its many important applications is the fabrication of metal tooling for plastic injection molding. In order to …
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Three dimensional printing by vector printing of fine metal powders
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.
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Positive pressure drop-on-demand printhead for Three-Dimensional Printing
In drop-on-demand printing, wetting out of the binder fluid onto the orifice face typically has been prevented by some combination of the following: coatings on the orifice face, high surface energy fluids, and negative pressure. This non-wetting approach is not practical for low surface energy …
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Microstructural control during three dimensional printing of polymeric medical devices
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1998.
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Alloy design or three-dimensional printing of hardenable tool materials
Three-dimensional printing (3DP) is a state-of-the-art manufacturing technology, One of its many important applications is to fabricate the metal tooling for plastic injection molding. In order to achieve a fully dense 3DP metal tool, the current 3DP process involves five steps: printing, …
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Production of metal parts using the three dimensional printing process
Three Dimensional Printing is a process for the rapid fabrication of three dimensional parts directly from computer models. A solid object is created by printing a sequence of two dimensional layers. The creation of each layer involves the spreading of a thin layer of powdered material followed by …
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Reactive binders for metal parts produced by Three Dimensional Printing
Three Dimensional Printing (3DP) is a solid free form fabrication process which enables the construction of parts directly from computer-aided design (CAD) models. In the current process, metal parts are produced by printing a polymer binder into stainless steel powder. The parts are subsequently …
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CAD-casting of gas turbine airfoils using three dimensional printing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1997.
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