Extrusion piece with dissimilar ends
US9409218B2 · kind B2 · utility
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14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2013 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Aug 19, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D26/033
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method includes: determining a design for a longitudinal piece of a particular length, wherein first and second ends of the longitudinal piece have dissimilar shapes; extruding a piece that is at least twice the particular length, wherein a profile throughout the extruded piece has the first end shape; hydroforming the extruded piece to generate an expanded portion between ends of the extruded piece, wherein the ends retain essentially the first end shape; and cutting through the expanded portion to obtain a piece wherein one end has the first end shape and another end has the second end shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.