Method and facility for collision performance evaluation test for metal sheet material for automobile body
US12241875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2019 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Oct 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0647
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A collision performance evaluation test with few variations in test results with high accuracy in which a complicated phenomenon that actually occurs can be reproduced in a simple manner by considering the history of deformation in both the press forming and a collision. A collision performance evaluation test method for a metal sheet material for an automobile body is characterized in that a press working apparatus first forms a flat test specimen made of a metal sheet material to be tested into a V shape by primary bending, a bending test apparatus then deforms, by secondary bending, the test specimen formed by the primary bending in a direction intersecting with the primary bending direction, and a bending load and a bending stroke for the test specimen during the secondary bending deformation are recorded and evaluated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.