Laser weld monitor

Details Laser weld monitor Laser weld monitor

2006-10-31

2006-10-31

Elve, M. Alexandra (Department: 1725)

Electric heating

Metal heating

By arc

C219S121640, C219S121850

Reexamination Certificate

active

07129438

ABSTRACT:
A laser weld monitoring system capable of assessing a weld quality of welding using a pulsed laser is provided. The system includes at least one sensor capable of capturing a weld characteristic of welding using said pulsed laser. The weld characteristic has multiple attributes. The system also includes data acquisition and processing equipment adapted for storing and analyzing the weld characteristic. A user first performs multiple welds to capture at least one weld characteristic for each weld. The user then determines the weld quality of each weld, and runs at least one of a library of algorithms associated with the attributes on said at least one weld characteristic for each weld to generate a single value output for the associated attribute. The user selects an attribute indicative of the weld quality by correlating the single value outputs of said at least one algorithm with the weld qualities of the welds.

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Laser Institute of America, Handbook of Laser Materials Processing, Chapter 1: Overview of Laser Materials Processing p. 11, Magnolia Publishing, Inc., USA.
European Search Report of EP 03090240.7, May 23, 2006.

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