WELDING DEVICE, WELDING METHOD, AND TURBINE BLADE

A welding device including a cylindrical powder nozzle (201) that supplies a powder gas containing a powder welding material toward a laser beam irradiation position of a base material and a cylindrical shield nozzle (202) that is arranged coaxially so as to cover an outer peripheral surface of the...

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Bibliographic Details
Main Authors NAGAI Naonori, MATSUNAMI Yasuo, OKUDA Takehisa, SOMETANI Satoshi
Format Patent
LanguageEnglish
Published 08.02.2018
Subjects
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
ATOMISING APPARATUS
BLASTING
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINE TOOLS
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
METAL-WORKING NOT OTHERWISE PROVIDED FOR
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
NOZZLES
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
SPRAYING APPARATUS
SPRAYING OR ATOMISING IN GENERAL
STEAM ENGINES
TRANSPORTING
WEAPONS
WELDING
WORKING BY LASER BEAM
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Summary:A welding device including a cylindrical powder nozzle (201) that supplies a powder gas containing a powder welding material toward a laser beam irradiation position of a base material and a cylindrical shield nozzle (202) that is arranged coaxially so as to cover an outer peripheral surface of the powder nozzle (201) and supplies a shielding gas for isolating the laser beam irradiation position, in which an outer peripheral surface (201b) in the vicinity of a distal end portion (201a) of the powder nozzle (201) has a shape whose outer diameter gradually decreases toward a distal end portion (201a) of the powder nozzle (201) and has an arc-shaped section on a section passing through a center axis (A) of the powder nozzle (201) is provided.
Bibliography:Application Number: US201515551532