Method and apparatus for process monitoring in additive manufacturing utilizing an image of a negative structure
US11433617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2019 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Jun 7, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C64/264
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is provided for controlling an additive manufacturing process in which a layer of resin is deposited on a build surface and selectively cured via selective application of radiant energy so as to define the geometry of a cross-sectional layer of the component, such that uncured resin remaining on the build surface after curing defines a negative structure of the layer being cured. The method includes: using an imaging apparatus to produce an image of the negative structure; evaluating the image of the negative structure and controlling at least one aspect of the additive manufacturing process with reference to the image of the negative structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.