发明授权
US08034438B2 Coated cutting tool for general turning in heat resistant super alloys (HRSA)
有权
用于耐热超合金(HRSA)一般车削的涂层切削刀具
- 专利标题: Coated cutting tool for general turning in heat resistant super alloys (HRSA)
- 专利标题(中): 用于耐热超合金(HRSA)一般车削的涂层切削刀具
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申请号: US12195578申请日: 2008-08-21
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公开(公告)号: US08034438B2公开(公告)日: 2011-10-11
- 发明人: Erik Sundstrom , Rachid M'Saoubi , Jon Andersson
- 申请人: Erik Sundstrom , Rachid M'Saoubi , Jon Andersson
- 申请人地址: SE Fagersta
- 专利权人: Seco Tools AB
- 当前专利权人: Seco Tools AB
- 当前专利权人地址: SE Fagersta
- 代理机构: Young & Thompson
- 主分类号: B32B9/00
- IPC分类号: B32B9/00
摘要:
The present invention relates to coated cemented carbide inserts, particularly useful in general turning of superalloys. The inserts are characterized by a cemented carbide of WC, about 5.0-7.0 wt-% Co, and about 0.22-0.43 wt-% Cr, where the substrate has a coercivity (Hc) of about 19-28 kA/m. The coating contains a single (TixAl1-x)N-layer, where x is about 0.25-0.50, with crystal structure of NaCl type, total thickness of about 3.0-5.0 μm, (200)-texture, and compressive residual strain of about 2.5×10−3-5.0×10−3, optionally containing an outermost TiN-layer.
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