Research Article
Additive Manufacturing Technologies: An Overview about 3D Printing Methods and Future Prospects
Table 1
Key inventions in additive manufacturing (ordered by publication of patent).
| Technology | Inventors | Patent | Development centre | Request for patent | Publication of patent | Principle of operation |
| Stereolithography SL | Charles W. Hull | Method and apparatus for production of three-dimensional objects by stereolithography | 3D Systems | 08.08.1984 | 12.02.1986 | Photopolymerization of a photosensitive resin using UV light |
| Selective Sintering SS | Carl R. Deckard | Method and apparatus for producing parts by selective sintering | University of Texas | 17.10.1986 | 21.04.1988 | Selective sintering of powder (fusion – solidification using laser) |
| Material Deposition MD | Scott S. Crump | Apparatus and method for creating three-dimensional objects | Stratasys, Inc. | 30.10.1989 | 01.05.1991 | Deposition of material, using a nozzle, in plastic state (heated by electrical resistance) |
| Jet Prototyping (injection) JP | Emanuel M. Sachs; John S. Haggerty; Michael J. Cima; Paul A. Williams | Three-dimensional printing techniques | Massachusetts Inst. Technology | 08.12.1989 | 09.06.1991 | Injection of binding agent and coloured ink on a bed of powdered material |
| Laminated Manufacturing (cutting) LM | Feygin, Michael; Pak, Sung Sik | Forming integral objects from laminations - Apparatus for forming an integral object from laminations | Helisys, Inc. | 05.10.1988 | 18.04.1996 | Cutting and gluing of laminations with the geometry determined for each layer |
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