发明名称 |
SURFACE COATING CUTTING TOOL |
摘要 |
A surface-coated cutting tool having excellent abrasion resistance and defect resistance is provided. The surface-coated cutting tool includes a substrate and a covering layer, wherein the covering layer includes one or two or more sublayers, a thickness T 1 of a portion of the covering layer having the smallest thickness in a cutting edge line portion and a thickness T 2 of the covering layer at a point 1 mm away from a cutting edge line in a rake face direction in a cross section cut by a particular plane satisfy T 1 < T 2 , and a point a on the surface of the covering layer a distance D a away from the cutting edge line in the rake face direction and a point b on the surface of the covering layer a distance D b away from the cutting edge line in a flank face direction satisfy particularly numerical ranges of D a and D b , and in 10% or more of a region E of the covering layer having a thickness in the range of 0.1T 1 to 0.9T 1 from the surface and extending from the point a to the point b, the deviation in the crystal orientation of crystal grains constituting the covering layer is 5 degrees or more and less than 10 degrees. |
申请公布号 |
EP2594352(A4) |
申请公布日期 |
2017.03.15 |
申请号 |
EP20110806518 |
申请日期 |
2011.04.04 |
申请人 |
Sumitomo Electric Hardmetal Corp. |
发明人 |
KANAOKA, Hideaki;ITOH, Minoru;OKADA, Yoshio;SUZUKI, Chie;PASEUTH, Anongsack |
分类号 |
B23B27/14;B23B51/00;B23C5/16;C23C16/30 |
主分类号 |
B23B27/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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