Method and system for operating a metal drop ejecting three-dimensional (3D) object printer to compensate for geometric variations that occur during an additive manufacturing process
US11565475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Mar 16, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method operates a three-dimensional (3D) metal object manufacturing system to compensate for errors that occur during object formation. In the method, thermal image data and dimensional image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object. Thermal conditions are identified from these data and compared to predetermined ranges corresponding to the identified thermal conditions to identify one or more errors. For identified errors outside a corresponding predetermined difference range, the method performs an error compensation technique. The error compensation includes modification of a surface data model, modification of machine-ready instructions, or operation of a subtractive device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.