Optical penetration sensor for pulsed laser welding
US6075220A · kind A · utility
19Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1998 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Feb 12, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/032
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for determining the penetration of the weld pool created from pulsed laser welding and more particularly to an apparatus and method of utilizing an optical technique to monitor the weld vaporization plume velocity to determine the depth of penetration. A light source directs a beam through a vaporization plume above a weld pool, wherein the plume changes the intensity of the beam, allowing determination of the velocity of the plume. From the velocity of the plume, the depth of the weld is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.