Apparatus and method for monitoring laser welding bead
US10029334B2 · kind B2 · utility
4Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2014 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Apr 5, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for monitoring a laser welding bead irradiates a laser to a surface of a welding bead when welding with a laser welding machine, collects a signal reflected from the surface of the welding bead as an image signal, and then extracts at least one feature variable of a bead shape using the collected image signal. Then, the apparatus for monitoring the laser welding bead determines welding defects using the at least one feature variable, and controls an operation of the laser welding machine according to whether or not the welding defects are generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.