发明名称 |
ROTATABLE CUTTING TOOL AND CUTTING TOOL BODY |
摘要 |
A rotatable cutting tool (20) carried in a bore of a holder. The rotatabl e cutting tool (20) includes an elongate cutting tool body (22) that has a c entral longitudinal axis (L-L), an axial forward end (24) and an axial rearw ard end (26). The cutting tool body has an axial forward hardness region (60 ) having a first average hardness, a rearward hardness region (64) having a third average hardness, and a transition hardness region (62) mediate of and contiguous with the axial forward hardness region (60) and the axial rearwa rd hardness region (64), the transition hardness region (62) having a second average hardness. The second average hardness is less than the first hardne ss, and the third average hardness is less than the second average hardness.
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申请公布号 |
CA2665079(A1) |
申请公布日期 |
2008.04.17 |
申请号 |
CA20072665079 |
申请日期 |
2007.10.02 |
申请人 |
KENNAMETAL INC. |
发明人 |
BITLER, JONATHAN W.;MACINTYRE, RAY C.;OJANEN, RANDALL W.;MARATHE, ANIRUDDA S. |
分类号 |
E21C27/20;E01C23/088;E21C35/183 |
主分类号 |
E21C27/20 |
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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