Production of a component for reducing the effects of an external mechanical impact, and the component produced in this way
US6598442B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F7/125
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for producing a component for reducing the effect of an external mechanical impact, of the type which comprises an essentially tubular metal element which has a jump in its cross section which is such that under the influence of an axial load it can be turned at least partially inside-out as a result of plastic deformation, by means of which process the tubular element is formed by hydroforming from a piece of tube which has a cross section which is constant along its length, during which process part of the length of the cross section is increased in size, and the transitions in the cross section cover a short distance, and during the hydroforming an axial pressure on the piece of tube which is being deformed is set to be such that the transitions in cross section adapt to an S-shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.