Method and apparatus for producing a three-dimensionally shaped object, and three dimensionally shaped object
US8187522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2009 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Feb 10, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing a three-dimensionally shaped object, includes the steps of: (i) forming a solidified layer by irradiating a light beam on a specified portion of a powder layer placed on a shaping table to sinter or melt the specified portion; (ii) forming another solidified layer by placing a new powder layer on the solidified layer thus obtained, and irradiating the light beam on a specified portion of the new powder layer to sinter or melt the specified portion of the new powder layer; and (iii) repeating the step (ii) to produce a three-dimensionally shaped object. When performing the steps (i) to (iii) within a chamber, at least a part of an ambient gas in the chamber is exhausted from the chamber through a gas passage of a shaping tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.