Method for preparing thin-walled preforms by laser metal deposition and follow-up rolling
US11612960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2022 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Laser additive manufacturing and a method for preparing thin-walled preforms by laser metal deposition and follow-up rolling. This can solve the problems that when the existing laser metal deposition technology prepares the thin-walled preforms, the limit width size of a molten pool at high power affects the forming wall thickness of the preforms so that it is difficult to prepare preforms with wall thickness less than 2 mm, and the problems of poor surface quality and low accuracy of preforms due to convex and concave peaks caused by the interlayer overlapping, but also can solve the problems that a laser beam with a preset trajectory cannot act on the end surfaces of the preforms due to preform deformation caused by residual stress in a printing process so that the preforms cannot be continuously formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.