发明名称 |
BOHRER MIT VERBESSERTER SCHNEIDEINSATZFORMATION |
摘要 |
A drill has a tip with at least two cutting edges (8,8') and at least two chip flutes (7,7'). Cutting edges on mutual sides of the axial center line (CL) have a straight unbroken contour, the central portions of which extend axially beyond the peripheral portions. The nose radius portion on each cutting edge at the periphery is confined by a number of circular segments with mutually different radii, adjacent radii always appearing with a different size. The cutting edges are preferably provided on cemented carbide inserts (9,9'). |
申请公布号 |
DE60131158(D1) |
申请公布日期 |
2007.12.13 |
申请号 |
DE2001631158 |
申请日期 |
2001.04.09 |
申请人 |
SANDVIK INTELLECTUAL PROPERTY AB |
发明人 |
EDVARDSSON, JAN;WIMAN, JOERGEN;SJOELANDER, AKE |
分类号 |
B23B51/00;B23B51/02;B23B;B23B51/04 |
主分类号 |
B23B51/00 |
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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