Method for producing press-molded article
US9731339B2 · kind B2 · utility
3Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Dec 20, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D53/88
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method produces a press-molded article having a hat shaped cross-section with flanges at both sides, a top plate, vertical walls at both sides, and having a shape curved in the vertical direction to an inverted checkmark shape along the longitudinal direction when the molded article is viewed from a side face with the top plate section on the top side. An intermediate molded body is formed by drawing a metal stock sheet into an intermediate shape, and after preparing the outside shape of the intermediate molded body by trimming, drawing is subsequently performed to form the final shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.