Mold for preparing large-size rare earth magnesium alloy ingot without tail shrinkage by back pressure severe plastic deformation
US12214394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2022 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Nov 11, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A mold for preparing large-size rare earth magnesium alloy ingot without tail shrinkage by back pressure plastic deformation includes a male mold, a female mold, a recoverable discard block and a back pressure plate connected with a pushing cylinder of the press machine. The female mold is provided with an upper mold cavity and a lower mold cavity, an upper part of the upper mold cavity is configured for placing blanks, the recoverable discard block and the male mold, and a lower part of the upper mold cavity is inclined inward to form an extrusion deformation area. The recoverable discard block is configured to be deformed to fill an extrusion deformation area and subsequently restored into the initial state of the recoverable discard block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.