Title:
Electric steel sheet and its manufacturing method
Document Type and Number:
Japanese Patent JP6307441
Kind Code:
B2
Abstract:
A method for manufacturing an electrical steel sheet is provided. The method for manufacturing an electrical steel sheet includes forming a groove having first and second side surfaces and a bottom surface by melting a surface of a steel sheet by laser irradiation, and forming an opening by removing melted byproducts of the steel sheet formed on the first and second side surfaces and the bottom surface through air blowing or suctioning to expose at least one surface of the first side surface, the second side surface, and the bottom surface in the forming of the groove.
Inventors:
Kwon, Oh-You
Lee, Won-Guru
Han, Chang-Hee
Park, Hyun-Chul
Lee, Won-Guru
Han, Chang-Hee
Park, Hyun-Chul
Application Number:
JP2014549958A
Publication Date:
April 04, 2018
Filing Date:
November 15, 2012
Export Citation:
Assignee:
POSCO
International Classes:
C21D8/12; B23K26/064; B23K26/073; B23K26/082; B23K26/142; B23K26/354; B23K26/359; H01F1/16
Domestic Patent References:
| JP2002292484A | ||||
| JP61117222A | ||||
| JP2003129135A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara
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