公开(公告)号：WO2004103620A8

公开(公告)日：2005-02-03

申请号：PCT/SE2004000769

申请日：2004-05-18

Applicant: SANDVIK AB

Inventor： LINDBLOM STEFAN

IPC: B23B51/00 ,  B23B51/04 ,  B23D20060101

CPC classification number: B23B51/048 ,  B23B2222/16 ,  B23B2222/84 ,  B23B2251/02 ,  B23B2251/14 ,  B23B2251/202 ,  B23B2251/422 ,  B23B2260/138 ,  Y10S408/705 ,  Y10T408/45 ,  Y10T408/455 ,  Y10T408/909 ,  Y10T408/9095

Abstract: The invention relates to an edge-carrying drill body (1) intended for deep hole drilling, which is rotatable around a central geometric axis (C) and comprises a through channel (2) that is arranged for internal chip evacuation and that mouths in front and rear ends of the drill body. A front chan­nel mouth is bridged over by a bridge (8) in which a plurality of cutting edges (9) are included, which are made integrally with the rest of the bridge, and in front of which - seen in the direction of rotation of the drill body - there are chip inlets to the channel.

Abstract translation: 本发明涉及一种用于深孔钻削的边缘承载钻体（1），其可围绕中心几何轴线（C）旋转，并且包括布置成用于内部排屑的通道（2），并且在前面 和钻体的后端。 前通道口由桥（8）桥接，其中包括与桥的其余部分一体形成的多个切割边缘（9），并且在其前面 - 沿着旋转方向 钻体 - 有通道的芯片入口。