Transverse flow laser spray nozzle

Details Transverse flow laser spray nozzle Transverse flow laser spray nozzle

1989-02-08

1990-09-18

Albritton, C. L.

Electric heating

Metal heating

By arc

21912163, 21912165, 21912184, 21912185, B23K 2600

Patent

active

049580582

ABSTRACT:
A feed material is melted by a focussed laser beam in a partially confined interaction volume, and ejected from the interaction volume in a direction different from the axis of the laser beam. The feed material, preferably in the form of a finely divided powder fluidized by a gas stream, is fed to the interaction volume in a direction transverse to the axis of the laser beam. Confinement of the molten feed material is preferably attained using balanced gas pressures that do not permit the molten feed material to flow in the direction parallel to the laser beam. The energy density of the laser beam is preferably sufficiently high to form a plasma within the interaction volume from gas and vaporized feed material atoms, so that the feed material is introduced into the plasma.

REFERENCES:
patent: 4200669 (1980-04-01), Schaefer et al.

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