|
|
|
|
|
|
Contact |
|
Carreño-Morelli Efraín |
|
|
|
Title |
|
Three-dimensional printing of shape memory alloys |
|
|
|
Author(s) |
|
Carreño-Morelli E., Martinerie S., Bidaux J.-E. |
|
|
|
References |
|
Materials Science Forum 534-536, 2007, pp. 477- 480 |
|
|
|
Url |
|
|
|
|
|
Abstract |
|
A novel variant of the three-dimensional printing technique has been developed and used to manufacture NiTi parts. Instead of metal powder the process uses granules, which consist of a mixture of metal powder and organic binder. These granules are spread on a working table. Then a solvent is dispensed with a printer head to consolidate a selected area of the granule bed and the table is moved down. The \solvent on granule\" printing process is repeated until a three-dimensional green body is obtained. The green part is finally debinded and sintered to obtain a dense and fully metallic part. NiTi parts have been successfully produced by this technique with densities of about 95% of the theoretical density. Detailed information on the microstructure has been obtained by X ray diffraction. Sintered parts exhibit shape memory effect, which has been measured during thermal cycling under tensile stress." |
|
|
|
|
|
|
|
|
|
|
|
|