发明名称 |
High speed metal drill bit |
摘要 |
A metal cutting drill bit has a shank portion, a flute portion defining a helix angle and a tip. The tip has a primary cutting edge extending to an outer periphery of the drill bit. The primary cutting edge has a rake face defining a rake angle. The rake angle is different from the helix angle at the tip of the drill bit.
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申请公布号 |
US2006029477(A1) |
申请公布日期 |
2006.02.09 |
申请号 |
US20040914111 |
申请日期 |
2004.08.09 |
申请人 |
ANJANAPPA MUNISWAMAPPA;XU LI;CROSBY STEPHEN R;RESCIGNO GERALD;TIMMONS RUSSELL M;THOMAS RICKEY J |
发明人 |
ANJANAPPA MUNISWAMAPPA;XU LI;CROSBY STEPHEN R.;RESCIGNO GERALD;TIMMONS RUSSELL M.;THOMAS RICKEY J. |
分类号 |
B23B51/02 |
主分类号 |
B23B51/02 |
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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