Patents Assigned to NIPPON STEEL & SMITOMO METAL CORPORATION
  • Publication number: 20140076870
    Abstract: [Object] To provide a laser processing apparatus and a laser processing method which are capable of reducing roughness of a cut surface in laser cutting using laser beams transmitted through optical fibers. [Solution] A laser processing apparatus according to the present invention includes at least one laser oscillator configured to emit laser beams, a plurality of optical fibers configured to transmit the emitted laser beams, and at least one optical element configured to focus the laser beams emitted from the optical fibers and irradiate a surface of a workpiece with the focused laser beams. At output ends of the optical fibers, the output ends of the plurality of optical fibers are placed in one or a plurality of ring shapes.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 20, 2014
    Applicant: NIPPON STEEL & SMITOMO METAL CORPORATION
    Inventors: Koji Hirano, Hirofumi Imai