Method of applying a laser beam creating micro-scale surface str

Details Method of applying a laser beam creating micro-scale surface str Method of applying a laser beam creating micro-scale surface str

1994-03-02

1996-09-24

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

427307, B23K 2600

Patent

active

055587895

ABSTRACT:
A method of producing an improved adherent interface between a film or coating and a substrate of metal, ceramic, or composite material by laser treatment of the surface. Semi-periodic microscale surface structures of less than 200 microns in magnitude are made by laser radiation of at least 50 pulses with an energy density of 0.01 to 15 J/cm.sup.2 and a duration of 100 femtoseconds to 1 millisecond on each surface area treated.

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patent: 4968383 (1990-11-01), Volkmann et al.
patent: 5417896 (1995-05-01), Fischer et al.
patent: 5435889 (1995-07-01), Dietrich

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