Part-geometry independent real time closed loop weld pool temperature control system for multi-layer DMD process
US8878094B2 · kind B2 · utility
6Cited by
20References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 28, 2003 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Dec 30, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a direct metal deposition system which builds up a metallic overlay on a substrate by moving the substrate relative to a laser in a metallic powder feed, the laser power is adjusted for successive layers by sensing the weld pool in a plurality of selected points in each layer and adjusting the power during successive layers to maintain a weld pool that corresponds to those achieved during deposition of a lower optimal layer. This compensates for heating of the substrate resulting from the deposition which tends to increase the pool size or temperature in the higher layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.