Method of surface-treating ceramic workpieces using a laser

Details Method of surface-treating ceramic workpieces using a laser Method of surface-treating ceramic workpieces using a laser

1987-10-16

1989-03-21

Albritton, C. L.

Electric heating

Metal heating

By arc

21912184, 21912185, B23K 2600

Patent

active

048145750

ABSTRACT:
A carbon dioxide laser (4) directs a beam (6) onto a ceramic workpiece to be treated (18), which workpiece moves along arrow (20). A carrier gas injector (14) injects a moderate throughput of spheroidized powder of a ceramic material into said beam. After melting and solidifying, the layer (24) after has microcracks which are smaller than they would have been if there had been no projected powder. The method is applicable to the construction of heat engines.

REFERENCES:
patent: 2803559 (1957-08-01), Rutherfurd et al.
patent: 3244412 (1966-04-01), Robinson et al.
patent: 4299860 (1981-11-01), Schaefer et al.
patent: 4732778 (1988-03-01), Kawasaki

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