Ultrasonic welding control
US4746051A · kind A · utility
21Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1982 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Dec 8, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for controlling ultrasonic welding and determining whether the weld is of acceptable quality. Power input to ultrasonic welding apparatus is detected and converted to a signal indicative of energy input. When power input exceeds a power threshold level a timer begins to measure elapsed time and energy input begins to be monitored. Welding power is terminated when both elapsed time and energy level have exceeded predetermined values. If either elapsed time or energy level exceeded reject limit values when the weld was made the weld is rejected as being of unacceptable quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.