Multi-mode ultrasonic welding control and optimization
US8450644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2011 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Sep 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A system and method for providing multi-mode control of an ultrasonic welding system. In one embodiment, the control modes include the energy of the weld, the time of the welding process and the compression displacement of the parts being welded during the welding process. The method includes providing thresholds for each of the modes, and terminating the welding process after the threshold for each mode has been reached, the threshold for more than one mode has been reached or the threshold for one of the modes has been reached. The welding control can be either open-loop or closed-loop, where the open-loop process provides the mode thresholds and once one or more of those thresholds is reached the welding process is terminated. The closed-loop control provides feedback of the weld energy and/or the compression displacement so that the weld power and/or weld pressure can be increased or decreased accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.