Mechanical joining apparatus and mechanical joining method
US10603713B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2016 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Dec 13, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B5/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided is a mechanical joining apparatus enabling reduction of breakage of the area around a rivet of a joint obtained by riveting, the apparatus comprising a punch and die, blank holder, first power device, second power device and cooling device, wherein the first power device is configured to start supply of current through the holder and die so as to raise the temperature of the sheets before the punch drives in the rivet, the second power device is configured to start supply of current through the punch and die so as to supply current through and heat treat the rivet after the punch drives in the rivet, and the cooling device is connected to the punch and is configured to cool the rivet after the rivet is heat treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.