发明名称 |
Cemented carbide with binder phase enriched surface zone |
摘要 |
The present invention relates to a cutting tool insert consisting of a cemented carbide substrate and a coating. The cemented carbide substrate comprises 73-93% by weight WC, 4-12% by weight binder phase, and cubic carbide phase with a binder phase enriched surface zone essentially free of cubic carbide phase. The cubic carbide phase comprises of elements from the groups IVb and Vb, with the tantalum content on a level corresponding to a technical impurity. Inserts according to the invention exhibit favourable edge strength and thermal shock resistance. <IMAGE> |
申请公布号 |
EP1314790(A3) |
申请公布日期 |
2005.08.24 |
申请号 |
EP20020026177 |
申请日期 |
2002.11.25 |
申请人 |
SECO TOOLS AB |
发明人 |
QVICK, JAN;ZACKRISSON, JENNI |
分类号 |
B23B27/14;C22C29/08;C23C14/06;C23C14/16;C23C16/30;C23C30/00;(IPC1-7):C22C29/08 |
主分类号 |
B23B27/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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