Method of locally heating a part to reduce strength and increase ductility for subsequent manufacturing operation
US6921444B2 · kind B2 · utility
14Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2003 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Jul 17, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21J15/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of performing manufacturing operations on a workpiece made of a high strength alloy is disclosed in which a local area of a workpiece is heated to micro-structurally soften the local area. The local area of the workpiece becomes softened and more ductile. A manufacturing operation involving deformation of the heat softened area is performed with the metal in the heat softened region being more ductile and having less strength than the surrounding portions thereof. Manufacturing operations may include riveting, clinching, hydro-forming, and magnetic pulse joining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.