Method and press-forming apparatus for manufacturing structural member for automotive body
US10717123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2014 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Apr 17, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D24/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing the structural member (1), the method including: a first step in which the pad (15, 15A, 15B, 15C, 21) presses the forming material (16) against the punch (13) to raise a portion corresponding to a flange to be formed in ends of at least the gutter bottom (2) and the ridge (3a, 3b) in a direction opposite to the pressing direction, the pad (15, 15A, 15B, 15C, 21) bends an end of a portion to be formed into the ridge (3a, 3b) in the pressing direction and restrains at least a part of the end, and the punch (13) and the die (14) carry out press forming to form an intermediate product while a region other than an end in a portion to be formed into the gutter bottom (2) remains unrestrained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.