Expanded tube for a motor vehicle crash box and manufacturing method for it
US12391201B2 · kind B2 · utility
0Cited by
21References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2021 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Nov 5, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2221/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a motor vehicle crash box with a working direction in vehicle's longitudinal axis manufactured out of a tube which is expanded into different zones, wherein the zones are different in strength and diameter by using steel after forming a homogenous austenitic microstructure with a strain hardening effect. The present invention further relates to the manufacturing method of such a component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.