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Title:
SURFACE-COATED CUTTING TOOL
Document Type and Number:
Japanese Patent JP2018202533
Kind Code:
A
Abstract:
To provide a surface-coated cutting tool which exhibits an excellent defect resistance in a high speed and high efficiency processing with a high heat load.SOLUTION: A surface-coated cutting tool comprises a base material, and a coating sheet formed on the base material. The coating includes a lamination layer structure in which an A layer, a B layer and a C layer are repeatedly laminated in this order. Each of the A layer, the B layer and the C layer is a nitride of at least two or more kinds of elements selected from a group comprising a group 4 element, a group 5 element, a group 6 element in a periodic table, Al, Si, B and Y, a lattice constant of the A layer L, a lattice constant of the layer B L, and a lattice constant of the C layer Lsatisfy the following formula (I) or (II): L

Inventors:
KOIKE SACHIKO
SETOYAMA MAKOTO
Application Number:
JP2017109332A
Publication Date:
December 27, 2018
Filing Date:
June 01, 2017
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES
SUMITOMO ELECTRIC HARDMETAL CORP
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C23C14/06
Domestic Patent References:
JP2016026893A2016-02-18
JPH11335813A1999-12-07
JP2015182153A2015-10-22
JP2010188461A2010-09-02
JP2003034859A2003-02-07
Foreign References:
WO2017175803A12017-10-12
Attorney, Agent or Firm:
Fukami patent office