发明名称 DRILLING TOOL AND METHOD FOR MAKING HOLES
摘要 A drilling tool for producing drill holes includes a tip and a shaft arranged opposite the tip in a direction of a longitudinal axis of the drilling tool. The drilling tool has at least one geometrically defined cutting edge in the tip area, and has an expanded diameter trailing the tip in a longitudinal direction from the tip. The drilling tool has a first area with a first diameter that precedes the expanded diameter, and a second area with a second diameter, larger than the first diameter, that trails the expanded diameter. The drilling tool is distinguished in that the expanded diameter and/or the second area is/are embodied such that chips are produced in the area of the expanded diameter and/or in the second area when a workpiece is machined, chips consistent with those produced when a workpiece is machined with a geometrically undefined cutting edge.
申请公布号 EP2670550(A1) 申请公布日期 2013.12.11
申请号 EP20120705973 申请日期 2012.02.01
申请人 MAPAL FABRIK FUER PRAEZISIONSWERKZEUGE DR. KRESS KG 发明人 KRESS, DIETER
分类号 B23B51/00;B23B51/02 主分类号 B23B51/00
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