Precision joint tracking laser welding system

Details Precision joint tracking laser welding system Precision joint tracking laser welding system

1989-09-14

1991-03-19

Albritton, C. L.

Electric heating

Metal heating

By arc

21912178, 2191218, 21912181, 21912183, B23K 2600

Patent

active

050013246

ABSTRACT:
A laser profiler is mounted to the focusing head for a laser welding beam to generate profile data for successive transverse viewing planes of an elongated joint prior to their presentations to the welding beam. The profile data is computer processed in accordance with a joint extraction algorithm using parameters defined in a tracking schedule characterizing the geometry of the joint to calculate the location of the joint centerline. The centerline location data is computer processed in accordance with a tracking algorithm to generate signals for activating a positioning head to adjust the position of the welding beam focal point and thus to track the moving joint as seam welding is effected.

REFERENCES:
patent: 4410787 (1983-10-01), Kremers et al.
patent: 4412121 (1983-10-01), Kremers et al.
patent: 4700045 (1987-10-01), Merry et al.
patent: 4764655 (1988-08-01), Ortiz, Jr. et al.
patent: 4812614 (1989-03-01), Wang et al.

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