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1. 发明授权

US06638571B2 Coated cemented carbide cutting tool member and process for producing the same 有权
标题翻译：涂层硬质合金切削刀具及其制造方法
公开(公告)号：US06638571B2
公开(公告)日：2003-10-28
申请号：US09984133
申请日：2001-10-29
申请人： Yoshio Hirakawa , Tetsuhiko Honma , Hitoshi Kunugi , Toshiaki Ueda
发明人： Yoshio Hirakawa , Tetsuhiko Honma , Hitoshi Kunugi , Toshiaki Ueda
IPC分类号： C23C1636
CPC分类号： C23C16/32 , C23C16/34 , C23C16/36 , C23C16/403 , C23C16/405 , C23C30/005 , Y10T428/24942 , Y10T428/30
摘要： The present invention relates to a coated cemented carbide cutting tool member, which includes: a substrate and a hard coating layer deposited on the substrate, wherein the hard coating layer has an average thickness of 3 to 25 &mgr;m and includes: (1) at least one layer having an average thickness of 0.1 to 5 &mgr;m and including a granular Ti compound selected from the group including TiC, TiN, TiCN, Ti2O3, TiCO, TiNO, TiCNO and mixtures thereof; (2) a TiCN layer having an average thickness is 2 to 15 &mgr;m and including a longitudinal growth crystal structure; and (3) an Al2O3 layer having an average thickness of 0.5 to 8 &mgr;m; wherein the TiCN layer includes a growth direction and a compositional gradient of carbon and nitrogen along the growth direction. The invention also relates to a process for producing a coated carbide member, which includes depositing a TiCN layer with a reactive gas, the layer having a lower portion and an upper portion; and, during the depositing, changing a concentration in the reactive gas of at least one selected from the group including CH3CN, CH4, N2, and mixtures thereof; wherein the depositing of the lower portion is carried out at a deposition temperature of 850-950° C., and the depositing of the upper portion is carried out at a deposition temperature of 960-1040° C. The invention also provides a coated carbide member produced by the above-noted process. By use of the present invention, a coated carbide member is provided that resists chipping of cutting edge over long periods of time even when used for high speed, high feed, and thick depth-of-cut interrupted cutting operations of steels and cast irons.
摘要翻译：本发明涉及涂覆硬质合金切削工具部件，其包括：基材和沉积在基材上的硬涂层，其中硬涂层的平均厚度为3〜25μm，包括：（1）至少平均厚度为0.1〜5μm的一层，包括选自TiC，TiN，TiCN，Ti 2 O 3，TiCO，TiNO，TiCNO的粒状Ti化合物及其混合物;（2）具有平均厚度的TiCN层 2〜15μm，包括纵向生长晶体结构; 和（3）平均厚度为0.5-8μm的Al 2 O 3层;其中TiCN层包括沿生长方向的生长方向和碳氮的组成梯度。本发明还涉及一种用于制造涂覆的碳化物构件的方法，其包括用反应气体沉积TiCN层，该层具有下部和上部; 并且在沉积期间，改变选自包括CH 3 CN，CH 4，N 2和它们的混合物中的至少一种的反应气体中的浓度; 其中下部的沉积在850-950℃的沉积温度下进行，并且上部的沉积在960-1040℃的沉积温度下进行。本发明还提供了一种涂覆的碳化物由上述方法生产的成员。通过使用本发明，提供了一种涂覆的碳化物构件，即使用于高速，高进给和厚度的切割中断切割操作的钢和铸铁，也能够长时间地抵抗切削刃的切屑。

2. 发明授权

US06338894B1 Coated cemented carbide cutting tool member and process for producing the same 有权
标题翻译：涂层硬质合金切削刀具及其制造方法
公开(公告)号：US06338894B1
公开(公告)日：2002-01-15
申请号：US09583773
申请日：2000-05-31
申请人： Yoshio Hirakawa , Tetsuhiko Honma , Hitoshi Kunugi , Toshiaki Ueda
发明人： Yoshio Hirakawa , Tetsuhiko Honma , Hitoshi Kunugi , Toshiaki Ueda
IPC分类号： B32B900
CPC分类号： C23C16/36 , C23C16/029 , C23C30/005 , Y10T407/27 , Y10T428/24942 , Y10T428/24975 , Y10T428/265
摘要： The present invention relates to a coated cemented carbide cutting tool member, which includes: a substrate and a hard coating layer deposited on the substrate, wherein the hard coating layer has an average thickness of 3 to 25 &mgr;m and includes: (1) at least one layer having an average thickness of 0.1 to 5 &mgr;m and including a granular Ti compound selected from the group including TiC, TiN, TiCN, Ti2O3, TiCO, TiNO, TiCNO and mixtures thereof; (2) a TiCN layer having an average thickness is 2 to 15 &mgr;m and including a longitudinal growth crystal structure; and (3) an Al2O2 layer having an average thickness of 0.5 to 8 &mgr;m; wherein the TiCN layer includes a growth direction and a compositional gradient of carbon and nitrogen along the growth direction. The invention also relates to a process for producing a coated carbide member, which includes depositing a TiCN layer with a reactive gas, the layer having a lower portion and an upper portion; and, during the depositing, changing a concentration in the reactive gas of at least one selected from the group including CH3CN, CH4, N2, and mixtures thereof; wherein the depositing of the lower portion is carried out at a deposition temperature of 850-950° C., and the depositing of the upper portion is carried out at a deposition temperature of 960-1040° C. The invention also provides a coated carbide member produced by the above-noted process. By use of the present invention, a coated carbide member is provided that resists chipping of cutting edge over long periods of time even when used for high speed, high feed, and thick depth-of-cut interrupted cutting operations of steels and cast irons.
摘要翻译：本发明涉及涂覆硬质合金切削工具部件，其包括：基材和沉积在基材上的硬涂层，其中硬涂层的平均厚度为3〜25μm，包括：（1）至少平均厚度为0.1〜5μm的一层，包括选自TiC，TiN，TiCN，Ti 2 O 3，TiCO，TiNO，TiCNO的粒状Ti化合物及其混合物;（2）具有平均厚度的TiCN层 2〜15μm，包括纵向生长晶体结构; 和（3）平均厚度为0.5-8μm的Al 2 O 2层;其中TiCN层包括沿生长方向的生长方向和碳氮的组成梯度。本发明还涉及一种用于制造涂覆的碳化物构件的方法，其包括用反应气体沉积TiCN层，该层具有下部和上部; 并且在沉积期间，改变选自包括CH 3 CN，CH 4，N 2和它们的混合物中的至少一种的反应气体中的浓度; 其中下部的沉积在850-950℃的沉积温度下进行，并且上部的沉积在960-1040℃的沉积温度下进行。本发明还提供了一种涂覆的碳化物由上述方法生产的成员。通过使用本发明，提供了一种涂覆的碳化物构件，即使用于高速，高进给和厚度的切割中断切割操作的钢和铸铁，也能够长时间地抵抗切削刃的切屑。

3. 发明授权

US5066553A Surface-coated tool member of tungsten carbide based cemented carbide 失效
标题翻译：基于碳化钨的碳化硅表面涂层工具
公开(公告)号：US5066553A
公开(公告)日：1991-11-19
申请号：US507665
申请日：1990-04-10
申请人： Hironori Yoshimura , Yoshihiro Sawada , Kei Nakahara , Hitoshi Kunugi , Keiichi Sakurai
发明人： Hironori Yoshimura , Yoshihiro Sawada , Kei Nakahara , Hitoshi Kunugi , Keiichi Sakurai
IPC分类号： C23C30/00
CPC分类号： C23C30/005 , Y10S76/11 , Y10T407/27 , Y10T428/24942 , Y10T428/265 , Y10T428/30
摘要： There is disclosed a surface-coated tool member of tungsten carbide based cemented carbide which has a tungsten carbide based cemented carbide substrate and a hard coating formed on the substrate. The hard coating may have one or more layers each of which is made of one material selected from the group consisting of carbide, nitride and oxide of metals in groups IV.sub.A, V.sub.A and VI.sub.A of the Periodic Table; solid solution of said carbide, nitride and oxide; and aluminum oxide. The cobalt content of the substrate in a surface portion at a depth of about 2 .mu.m from a surface thereof is less than that in an interior portion at a depth of about 100 .mu.m from said surface by at least 10%.

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