Coated cemented carbide insert
    1.
    发明申请
    Coated cemented carbide insert 有权
    涂层硬质合金刀片

    公开(公告)号:US20040180241A1

    公开(公告)日:2004-09-16

    申请号:US10760387

    申请日:2004-01-21

    Applicant: SANDVIK AB

    Abstract: The present invention relates to a cutting tool insert particularly for turning of steel comprising a cemented carbide body, a coating with a post treatment with a first, innermost layer system of one or several layers of TiCxNyOz with xnullynullznull1 with a total thickness of 0.7-4.5 nullm a second multilayer system consisting of a totally 5-31 alternating Al2O3 and TiCxNyOz (xnullynullznull1), preferably null-Al2O3 and TiN, the Al2O3-layers having an individual layer thickness of

    Abstract translation: 本发明涉及一种特别用于钢包括硬质合金体的钢的切削刀具刀片,具有x + y + z <= 1的一层或几层TiCxNyOz的第一最内层系统的后处理涂层, 总厚度为0.7-4.5μm的由总共5-31个交替的Al 2 O 3和TiC x N y O z(x + y + z 1 = 1)组成的第二多层体系,优选为kappa-Al 2 O 3和TiN,Al 2 O 3层具有单独的层厚度 <0.5μm的TiCxNyOz层和0.01-0.2μm的TiCxNyOz层,多层的总厚度为1.0-4.0μm。 该多层沿着边缘线暴露于从前刀面上的边缘线至少0.02mm的前刀面和后刀面中,优选地,刀片的接触长度最大为0.9mm,侧面为0.02-0.20mm 面对。

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