Preparation method for metal material
US11890660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2022 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Aug 23, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D13/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a preparation method for a metal material, including: horizontally placing a to-be-prepared metal material between wavy surfaces of a female die and a male die; connecting a press machine with the male die; pressing the metal material through the male die, so that the metal material makes complete contact with the male die and the female die; ejecting the pressed metal material; horizontally overturning the metal material, and then placing the metal material between the wavy surfaces of the female die and the male die; repeatedly performing the pressing and overturning processes until accumulated strain of the metal material meets a requirement; and taking out the metal material after the deformed metal material is flattened by a plane die. According to the present invention, a large-size nano grained material can be manufactured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.