公开(公告)号：US20040110040A1

公开(公告)日：2004-06-10

申请号：US10724748

申请日：2003-12-02

Applicant: SANDVIK AB

Inventor： Sakari Ruppi ,  Anna Sandberg ,  Edward Laitila

IPC: B32B009/00

CPC classification number: C23C30/005 ,  Y10T428/24926

Abstract: A coated sintered cemented carbide body includes a cemented carbide body, a first layer adjacent the cemented carbide body, the first layer including Ti(C,N) and having a thickness of from about 3 to about 20 nullm, an alumina layer adjacent said first layer, the alumina layer including null-Al2O3 or null-Al2O3 and having a thickness of from about 1 to about 15 nullm, and a further layer adjacent the aluminum layer of a carbide, carbonitride or carboxynitride of one or more of Ti, Zr and Hf, the further layer having a thickness of from about 1 to 15 nullm. A friction-reducing layer, including one or more of null-Al2O3, null-Al2O3 and nanocrystalline Ti(C,N) and having a thickness of from about 1 to about 5 nullm, can be adjacent to the further layer. A method to cut steel with a sintered cemented carbide body where the alumina is null-Al2O3 and a method to cut cast iron with a sintered cemented carbide body where the alumina is null-Al2O3.

Abstract translation: 涂覆的烧结硬质合金体包括硬质合金体，与硬质合金体相邻的第一层，第一层包括Ti（C，N），其厚度为约3至约20μm，与所述第一层相邻的氧化铝层 层，氧化铝层包括α-Al 2 O 3或κ-Al 2 O 3，并且具有约1至约15μm的厚度，以及与Ti，Zr的一种或多种的碳化物，碳氮化物或氮氧化物的铝层相邻的另一层，以及 Hf，另一层具有约1至15μm的厚度。 包含γ-Al 2 O 3，kappa-Al 2 O 3和纳米晶Ti（C，N）中的一种或多种并且具有约1至约5μm厚度的摩擦减少层可以与另一层相邻。 用氧化铝为α-Al 2 O 3的烧结硬质合金体切割钢的方法以及用氧化铝为α-Al 2 O 3的烧结硬质合金体切割铸铁的方法。