Method for estimating a powder layer thickness
US12241735B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2019 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Aug 3, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed herein are methods for estimating a powder layer thickness in an additive manufacturing machine when forming a three-dimensional article layer by layer. The method comprises applying a first powder layer and selectively melting the first powder layer and thereafter measuring the temperature of the first powder layer at a plurality of times. The method further comprises providing a mathematical function giving a reference temperature as a function of time based on the measured temperatures of the first powder layer, applying a second powder layer on top of the first powder layer and measuring the temperature of the second powder layer at a predetermined time, and estimating the powder layer thickness of the second powder layer based on the measured temperature of the second powder layer and the reference temperature calculated by means of the mathematical function for the predetermined time point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.