Hot forming die quenching
US10350668B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2015 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Jun 15, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D7/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A tool for hot forming die quenching boron steel structural components having locally different microstructures and mechanical properties is described. The tool includes upper and lower mating dies, each die being formed by two or more die blocks including a working surface that in use faces the structural component to be formed, and side faces. The upper and lower dies include at least two neighboring die blocks adapted to operate at different temperatures corresponding to zones of the structural component to be formed having locally different microstructures and mechanical properties, wherein the neighboring die blocks are arranged with a gap between their side faces and end portions of the side faces of the neighboring die blocks that are close to the working surface are designed such that in use they are in contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.