| 发明名称 | Method of eliminating sub-surface porosity | ||
| 摘要 | A method for operating an additive manufacturing apparatus, the method comprises directing a first energy beam along a surface contour vector in a build plane. A second energy beam is directed along a plurality of substantially parallel hatch vectors disposed in the build plane inward of the surface contour vector. A sum of the surface contour vector and the plurality of hatch vectors define a processed powder region in the build plane. A third energy beam is directed along an offset contour vector in the build plane. The offset contour vector includes a plurality of unprocessed powder regions in the build plane between the surface contour vector and the plurality of hatch vectors. | ||
| 申请公布号 | US9533372(B2) | 申请公布日期 | 2017.01.03 |
| 申请号 | US201414888670 | 申请日期 | 2014.05.02 |
| 申请人 | United Technologies Corporation | 发明人 | O'Neill Christopher F. |
| 分类号 | B22F3/00;B23K26/06;B29C67/00;B22F3/105;B33Y10/00;B29K105/00 | 主分类号 | B22F3/00 |
| 代理机构 | Kinney & Lange, P.A. | 代理人 | Kinney & Lange, P.A. |
| 主权项 | 1. A method for operating an additive manufacturing apparatus, the method comprising: directing a first energy beam along a surface contour vector in a build plane; directing a second energy beam along a plurality of substantially parallel hatch vectors disposed in the build plane inward of the surface contour vector, a sum of the surface contour vector and the plurality of hatch vectors defining a processed powder region in the build plane; and directing a third energy beam along an offset contour vector in the build plane, the offset contour vector including a plurality of unprocessed powder regions in the build plane between the surface contour vector and the plurality of hatch vectors. | ||
| 地址 | Farmington CT US | ||