REDUCED MIST LASER SHOCK PEENING
PROBLEM TO BE SOLVED: To minimize mist between laser and an article for laser shock peening. SOLUTION: A laser unit (12) includes a laser beam source (14) for generating laser beam (16) along a laser beam centerline (20). A beam tube (22) surrounds at least a portion (24) of the beam centerline. A b...
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| creator | PEROZEK PAUL MICHAEL LAWRENCE WAYNE LEE |
| description | PROBLEM TO BE SOLVED: To minimize mist between laser and an article for laser shock peening. SOLUTION: A laser unit (12) includes a laser beam source (14) for generating laser beam (16) along a laser beam centerline (20). A beam tube (22) surrounds at least a portion (24) of the beam centerline. A beam aperture (26) is located at an exit (28) of the tube. A final beam optical lens (30) is mounted within the tube upstream of the aperture. A gas purging means (34) flows purge gas (35) into the tube. A converging section (48) of the tube is located between the lens and the aperture. A telescoping section (54) is located between the lens and the aperture in the converging section (48) of the tube. The lens has a focal number down to about 5. A gas knife (60) located between the aperture and the focal point (FP) of the lens is used for flowing a large volume of clearing gas (64) across the laser beam between the aperture and the focal point of the lens. COPYRIGHT: (C)2005,JPO&NCIPI |
| format | Patent |
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SOLUTION: A laser unit (12) includes a laser beam source (14) for generating laser beam (16) along a laser beam centerline (20). A beam tube (22) surrounds at least a portion (24) of the beam centerline. A beam aperture (26) is located at an exit (28) of the tube. A final beam optical lens (30) is mounted within the tube upstream of the aperture. A gas purging means (34) flows purge gas (35) into the tube. A converging section (48) of the tube is located between the lens and the aperture. A telescoping section (54) is located between the lens and the aperture in the converging section (48) of the tube. The lens has a focal number down to about 5. A gas knife (60) located between the aperture and the focal point (FP) of the lens is used for flowing a large volume of clearing gas (64) across the laser beam between the aperture and the focal point of the lens. 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SOLUTION: A laser unit (12) includes a laser beam source (14) for generating laser beam (16) along a laser beam centerline (20). A beam tube (22) surrounds at least a portion (24) of the beam centerline. A beam aperture (26) is located at an exit (28) of the tube. A final beam optical lens (30) is mounted within the tube upstream of the aperture. A gas purging means (34) flows purge gas (35) into the tube. A converging section (48) of the tube is located between the lens and the aperture. A telescoping section (54) is located between the lens and the aperture in the converging section (48) of the tube. The lens has a focal number down to about 5. A gas knife (60) located between the aperture and the focal point (FP) of the lens is used for flowing a large volume of clearing gas (64) across the laser beam between the aperture and the focal point of the lens. 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SOLUTION: A laser unit (12) includes a laser beam source (14) for generating laser beam (16) along a laser beam centerline (20). A beam tube (22) surrounds at least a portion (24) of the beam centerline. A beam aperture (26) is located at an exit (28) of the tube. A final beam optical lens (30) is mounted within the tube upstream of the aperture. A gas purging means (34) flows purge gas (35) into the tube. A converging section (48) of the tube is located between the lens and the aperture. A telescoping section (54) is located between the lens and the aperture in the converging section (48) of the tube. The lens has a focal number down to about 5. A gas knife (60) located between the aperture and the focal point (FP) of the lens is used for flowing a large volume of clearing gas (64) across the laser beam between the aperture and the focal point of the lens. COPYRIGHT: (C)2005,JPO&NCIPI</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MACHINE TOOLS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | REDUCED MIST LASER SHOCK PEENING |
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