Laser cutting nozzle

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:865141

Ramos, Terry J ^[1]

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1. Brentwood, CA

A laser cutting nozzle for use with a laser cutting apparatus directing a focused beam to a spot on a work piece. The nozzle has a cylindrical body with a conical tip which together have a conically shaped hollow interior with the apex at a small aperture through the tip. The conical hollow interior is shaped to match the profile of the laser beam, at full beamwidth, which passes through the nozzle to the work piece. A plurality of gas inlet holes extend through the body to the hollow interior and are oriented to produce a swirling flow of gas coaxially through the nozzle and out the aperture, aligned with the laser beam, to the work piece. BACKGROUND OF THE INVENTION

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4467171
• OSTI ID: 865141
• Country of Publication: United States
• Language: English

Related Subjects

laser
cutting
nozzle
apparatus
directing
focused
beam
spot
piece
cylindrical
conical
tip
conically
shaped
hollow
interior
apex
aperture
match
profile
beamwidth
passes
plurality
gas
inlet
holes
extend
oriented
produce
swirling
flow
coaxially
aligned
background
hollow interior
gas inlet
laser beam
focused beam
laser cutting
cutting apparatus
cutting nozzle
conically shaped
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