Nondestructive real-time method for monitoring the quality of a weld
US4419562A · kind A · utility
44Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1982 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Jan 19, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K37/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Herein disclosed is a noncontact, nondestructive method for monitoring the quality of a high energy weld, e.g., laser beam weld. In accordance with the proposed method, an acoustic sensor (32) is positioned at a distance from the welding zone (34) and picks up airborne acoustic emission signals (33) associated with the laser welding process. These acoustic signals, propagating through the air space between the welding zone (34) and the sensor (32), are detected and analyzed (36,37) to determine the quality of the weld (FIG. 3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.