Laser spraying

Details Laser spraying Laser spraying

1978-11-22

1980-04-29

Newsome, John H.

Coating processes

Electrical product produced

Welding electrode

204DIG11, 219121L, 427423, B05D 306

Patent

active

042006694

ABSTRACT:
A method and apparatus for spraying a surface which comprises: introducing into a laser beam, a powder with a vapor pressure from 10.sup.-2 to 10.sup.-1 atm. in excess of the ambient pressure at a temperature up to about 500.degree. C. above the melting point thereof and with a heat-absorption coefficient from 0.2 to 1; and passing the laser beam over said surface. Since the method and apparatus can coat or alloy or dope a surface, a wide variety of protective coatings can be fabricated.

REFERENCES:
patent: T967009 (1978-02-01), Gale
patent: 3310423 (1969-03-01), Ingham
patent: 3872279 (1975-03-01), Fairbairn
patent: 3947653 (1976-03-01), Fairbairn
patent: 3947654 (1976-03-01), Fairbairn
patent: 4004042 (1977-01-01), Fairbairn
patent: 4048459 (1977-09-01), Earle
patent: 4091256 (1978-05-01), Friichtenicht
patent: 4125926 (1978-11-01), Gale et al.
Encyclopaedic Dictionary of Physics, Ed. Thewlis Pergamon Press, New York, 962, pp. 243, 275, 276.

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