Pressed article manufacturing method and press mold
US10730092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 29, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D53/88
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pressed article manufacturing method employing a press mold equipped with a punch and a die to manufacture a pressed article including a first wall, a second wall extending out from an end portion on at least one length direction side of the first wall toward a back face side of the first wall, and a third wall extending out from a leading end portion of the second wall toward a front face side of the second wall. The manufacturing method includes using the punch and the die to apply pressure to and grip a portion on a base end side of the second wall in a first warp shape in which the base end side portion is warped so as to be convex on a back face side of the second wall as viewed in lateral cross-section in a state prior to demolding from the press mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.