发明名称 |
DRILLING TOOL FOR MACHINE TOOLS AND METHOD OF PRODUCING THE SAME |
摘要 |
<p>PCT No. PCT/EP97/00901 Sec. 371 Date Aug. 27, 1998 Sec. 102(e) Date Aug. 27, 1998 PCT Filed Feb. 26, 1997 PCT Pub. No. WO97/31742 PCT Pub. Date Sep. 4, 1997The invention concerns a drilling tool for machine tools. The drilling tool comprises a drill body with two chip-conveying grooves which are delimited at their flanks by helically curved ribs. Disposed at the end of the drill body is a drill head which comprises two segment parts, which are separated from each other by opposite axially aligned chip spaces, and two cutting plates which are each disposed in a recess in the segment parts in the region of an axially parallel radial chip-guide surface at different radial spacings from the drill axis with mutually partially overlapping working regions. At a transition point, the chip-guide surfaces merge into the flanks of the adjacent chip-conveying grooves. Disposed at at least one of the transition points is a transition surface which is gradually recessed so that it widens the cross-section of the chip space and merges into a flank of the adjacent chip-conveying groove.</p> |
申请公布号 |
EP0883455(B1) |
申请公布日期 |
2001.11.14 |
申请号 |
EP19970905084 |
申请日期 |
1997.02.26 |
申请人 |
KOMET PRAEZISIONSWERKZEUGE ROBERT BREUNING GMBH |
发明人 |
SCHEER, GERHARD;BAXIVANELIS, KONSTANTIN |
分类号 |
B23B51/00;B23B51/02;B23B51/04;B23P15/32;(IPC1-7):B23B51/02 |
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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