Electric heating – Metal heating – By arc
Patent
1997-08-29
2000-03-21
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
21912164, 21912183, B23K 2600
Patent
active
060405503
ABSTRACT:
A laser welding machine includes an arbor for rotating a plurality of bellows diaphragms positioned together in side-by-side relation adjacent the laser. An optical tracker is provided for optically tracking a position of a rotating outer joint of the diaphragms as the arbor rotates. In addition, a low inertia beam steering mechanism is used for directing the laser beam to form a weld in the rotating outer joint responsive to the optical tracker. The laser may be an Nd:YAG, a diode laser, or carbon dioxide laser, for example. The optical tracker preferably includes a solid state camera and an illumination source positioned on opposite sides of the rotating outer joint to capture a shadow image of the joint. The welding machine may further include a processor and associated display operatively connected to the camera and to the beam steering means. The display may be used for displaying the shadow image of the rotating outer joint. The laser beam may be aligned horizontally, and indexing of joints and distance positioning for focusing the laser beam provided by an X-Y table.
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Beusse James H.
Evans Geoffrey S.
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