Online determination of the quality characteristics for punch riveting and clinching
US7797126B2 · kind B2 · utility
7Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2008 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Mar 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/4974
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a method for the online determination of a bulge/upset dimension xST and rivet head end position K of a rivet 3 with a length L in a punch rivet process with the help of a moveable punch 10 and a rigid die 20. The path covered by the punch 10 and the force applied by it are determined and evaluated online during the joining process. The quality characteristics of the joint connection are determined with the help of defined threshold values or a graphical evaluation of force/path data of the joining process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.