发明名称 |
Cemented carbide and cutting tool |
摘要 |
There is provided a cemented carbide comprising a hard phase component which comprises a tungsten carbide (WC) and at least one selected from carbides, nitrides and carbonitrides of metals of the groups 4a, 5a and 6a in the periodic table; and a binder phase component comprising at least one of iron-group metals, wherein the surface region of the cemented carbide has 90-98% of the minimum hardness as compared with internal hardness, thereby having high hardness and toughness which is suitable to using as a cutting tool.
|
申请公布号 |
US2003129456(A1) |
申请公布日期 |
2003.07.10 |
申请号 |
US20020256275 |
申请日期 |
2002.09.26 |
申请人 |
USAMI KEIJI;SHIBATA DAISUKE;OHATA HIROSHI |
发明人 |
USAMI KEIJI;SHIBATA DAISUKE;OHATA HIROSHI |
分类号 |
B24D3/06;B24D5/12;C22C29/02;C22C29/08;(IPC1-7):B32B9/00 |
主分类号 |
B24D3/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|