发明申请
- 专利标题: COMPOSITE MATERIAL AND COATED CUTTING TOOL
- 专利标题(中): 复合材料和涂层切割工具
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申请号: US12677979申请日: 2008-09-12
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公开(公告)号: US20100255264A1公开(公告)日: 2010-10-07
- 发明人: Tomoyuki Ishida , Hideki Moriguchi , Akihiko Ikegaya
- 申请人: Tomoyuki Ishida , Hideki Moriguchi , Akihiko Ikegaya
- 优先权: JP2007-239617 20070914
- 国际申请: PCT/JP2008/002527 WO 20080912
- 主分类号: B32B3/10
- IPC分类号: B32B3/10
摘要:
The present invention provides a composite material that is excellent in the bonding ability between a cemented carbide layer and a cermet layer is excellent and deformation after sintering can be suppressed and a coated cutting tool having a base containing the composite material. A composite material 10ii is obtained by laminating a cemented carbide layer 11 and a cermet layer 12 and has the cemented carbide layer 11 on the surface side. The boundary between both the layers 11 and 12 has a concave portion 23, and the maximum depth Dmax of the concave portion 23 is 50 μm or more and 500 μm or lower. When the thickness of the composite material is defined as h1 and the thickness of the cemented carbide layer 11 is defined as h2, h2/h1 is in the range of more than 0.02 and 0.4 or lower. By providing the concave portion 23 to the boundary, both the layers 11 and 12 are sufficiently bound and the bonding ability therebetween is excellent. Due to the fact the cemented carbide layer 11 satisfies the given thickness mentioned above, the composite material 10 is difficult to deform.
公开/授权文献
- US08993095B2 Composite material and coated cutting tool 公开/授权日:2015-03-31