发明名称 |
DRILL, AND DRILLING METHOD |
摘要 |
The invention relates to a drill (4) and a device or a method for drilling boreholes in work-pieces (3), in which a periodically acting radial force (19) is exerted on the drill head (5) of the drill (4). The drill head (5) of the drill (4) has a cutting edge (52) extending only over a part of the diameter D(51) and is designed to have a lateral, V-shaped chip removing groove or bead (59) and with a channel (12) with an outlet opening (56) in the drill head (5) for supplying a drill fluid (9). On a drill side (61) of the drill head (5) opposite the bead (59) between a first and a second cylinder casing partial surface (64, 65) of the drill head (5) a rear offset (63) is formed which reduces the cross section of the drill head (5) in relation to an enclosing cylinder casing surface (61) of the drill head (5). |
申请公布号 |
CA2577127(C) |
申请公布日期 |
2011.11.01 |
申请号 |
CA20052577127 |
申请日期 |
2005.01.27 |
申请人 |
SCHOELLER-BLECKMANN OILFIELD TECHNOLOGY GMBH & CO. KG. |
发明人 |
RADKOWITSCH, WOLFGANG;METZNER, KLAUS;BLEICHER, FRIEDRICH |
分类号 |
B23B51/04;B23B41/02;B23B49/02;B23Q1/34;B23Q11/10;B23Q17/22 |
主分类号 |
B23B51/04 |
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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