Hot press forming apparatus and a method for hot press forming a blank
US12280413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2020 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | May 12, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D37/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for a hot press forming apparatus and a hot press forming apparatus (102; 202) for forming a blank (104), the hot press forming apparatus (102; 202) comprising a first die (106; 206) and a second die (108), wherein the first die (106; 206) has at least one die cavity (110; 210), and the second die (108) has at least one die protrusion (112), wherein the hot press forming apparatus (102; 202) is configured to, by means of the first and second dies (106, 108; 206, 108), press form the blank (104) placed between the first and second dies (106, 108; 206, 108). At least one of the first and second dies (106, 108; 206, 108) has a draw radius (116; 216), wherein a member (118; 218) is attached to a die (106; 206) which has a draw radius (116; 216). At least a portion (119; 219) of the member (118; 218) is positioned adjacent to or on the draw radius (116; 216). The member (118; 218) defines a first press forming surface (120; 220), and the die (106; 206) holding the member (118; 218) defines a second press forming surface (122; 222) outside the first press forming surface (120; 220). The member (118; 218) and the die (106; 206), which holds the member (118; 218), are configured s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.