Surface hardening by particle injection into laser melted surfac

Details Surface hardening by particle injection into laser melted surfac Surface hardening by particle injection into laser melted surfac

1980-09-08

1981-11-10

Newsome, John H.

Coating processes

Electrical product produced

Welding electrode

217121LE, 427319, B05D 306

Patent

active

042998603

ABSTRACT:
A method of impregnating the surface of a metal substrate with wear resist particles to impart wear resisting characteristics to the surface. The substrate surface is subjected to a relatively moving high-powered laser beam to cause localized surface melting in passes thereacross, and hard wear resistant particles are forcibly velocity injected into the melt. The particles are captured upon solidification of the melt pool and retained therein by metallurgical bond. A wear resistant layer is formed which is an integral part of the underlying material.

REFERENCES:
patent: T967009 (1978-02-01), Gale
patent: 1654509 (1927-12-01), Claus
patent: 3148086 (1964-09-01), Seibert
patent: 4051275 (1977-09-01), Forestek
patent: 4157923 (1979-06-01), Yen et al.
patent: 4200669 (1980-04-01), Schaefer et al.

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