发明名称 |
A CUTTING HEAD COMPRISING A DRILL TIP AND A DRILL HAVING SUCH A CUTTING HEAD |
摘要 |
<p>A cutting head comprises a drill tip (4) which in its turn comprises a chisel edge (5), at least two main cutting edges (6) which each extend between a central end at said chisel edge and an outer end and a recess (17) associated with each main cutting edge and located at each side of the chisel edge. Each said recess (17) comprises a chip breaking groove (18) extending along the main cutting edge (6) spaced from the main cutting edge by a distance. Furthermore, a twist drill is disclosed.</p> |
申请公布号 |
WO2012136518(A1) |
申请公布日期 |
2012.10.11 |
申请号 |
WO2012EP55426 |
申请日期 |
2012.03.27 |
申请人 |
SECO TOOLS AB;JOENSSON, KENTH-OVE;WIKSTROEM, TOMMY |
发明人 |
JOENSSON, KENTH-OVE;WIKSTROEM, TOMMY |
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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