Methods and systems for quality inference and control for additive manufacturing processes
US11517984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2018 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Apr 30, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This disclosure describes an additive manufacturing method that includes monitoring a temperature of a portion of a build plane during an additive manufacturing operation using a temperature sensor as a heat source passes through the portion of the build plane; detecting a peak temperature associated with one or more passes of the heat source through the portion of the build plane; determining a threshold temperature by reducing the peak temperature by a predetermined amount; identifying a time interval during which the monitored temperature exceeds the threshold temperature; identifying, using the time interval, a change in manufacturing conditions likely to result in a manufacturing defect; and changing a process parameter of the heat source in response to the change in manufacturing conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.