Title:
POWDER-SUPPLYING NOZZLE AND BUILD-UP-WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2013/046950
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a powder-supplying nozzle and a build-up-welding method for minimizing oxidation of a built-up part, and for allowing a high-quality built-up part to be fabricated. In the present invention, a powder-supplying nozzle is provided with a laser-emitting unit for irradiating laser light at an object to be worked, and a powder-supplying unit mounted on the outer periphery of the laser-emitting unit and adapted for discharging powder to a laser-irradiating unit, wherein the powder-supplying laser is characterized in being provided, on the outer periphery of the powder-supplying unit, with a mechanism for inducing the atmosphere around the laser-irradiating unit away from the laser-irradiating unit.
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Inventors:
MIYAGI MASANORI (JP)
TSUKAMOTO TAKESHI (JP)
KAWANAKA HIROTUGU (JP)
OKAMOTO KENICHI (JP)
TSUKAMOTO TAKESHI (JP)
KAWANAKA HIROTUGU (JP)
OKAMOTO KENICHI (JP)
Application Number:
PCT/JP2012/070303
Publication Date:
April 04, 2013
Filing Date:
August 09, 2012
Export Citation:
Assignee:
HITACHI LTD (JP)
MIYAGI MASANORI (JP)
TSUKAMOTO TAKESHI (JP)
KAWANAKA HIROTUGU (JP)
OKAMOTO KENICHI (JP)
MIYAGI MASANORI (JP)
TSUKAMOTO TAKESHI (JP)
KAWANAKA HIROTUGU (JP)
OKAMOTO KENICHI (JP)
International Classes:
B23K26/34; B23K26/14
Foreign References:
| JPS6277689U | 1987-05-18 | |||
| JPH10501463A | 1998-02-10 | |||
| JPH0683177U | 1994-11-29 | |||
| JPH07100673A | 1995-04-18 | |||
| JPH06190582A | 1994-07-12 | |||
| JPH1147938A | 1999-02-23 | |||
| JP2010105041A | 2010-05-13 | |||
| JPH04210887A | 1992-07-31 | |||
| JP2007222869A | 2007-09-06 |
Attorney, Agent or Firm:
ISONO Michizo (JP)
Michizo Isono (JP)
Michizo Isono (JP)
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Claims: