Method and apparatus for forming overhang structures with a metal drop ejecting three-dimensional (3D) object printer
US11794255B2 · kind B2 · utility
0Cited by
2References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 27, 2021 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Oct 22, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y50/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A three-dimensional (3D) metal object manufacturing apparatus is operated to form sloping surfaces having a slope angle of more than 45° from a line that is perpendicular to the structure on which the layer forming the slope surface is formed. The angle corresponds to a step-out distance from the perpendicular line and a maximum individual step-out distance determined from empirically derived data. Multiple passes of an ejection head of the apparatus can be performed within a layer to form a sloped edge and the mass of the sloped structure is distributed within the sloped edge so the edge is formed without defects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.