Method and apparatus for applying laser beams to a working surfa

Electric heating – Metal heating – By arc

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21912166, 2191218, 606 11, B23K 2600

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active

055827527

ABSTRACT:
A method and apparatus applying a laser beam to a working surface, by displacing the laser beam to trace a plurality of circular scans over the working surface; and continuously varying the diameters of the circular scans at a rate to produce a substantially homogenous distribution of the laser energy over the working surface.

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patent: 5364391 (1994-11-01), Konwitz
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patent: 5484980 (1996-01-01), Pratt et al.

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