公开(公告)号：EP0674560B1

公开(公告)日：1997-06-04

申请号：EP93924601.3

申请日：1993-11-08

申请人： GÜHRING, Jörg

发明人： REINAUER, Josef ,  KUHL, Hans, G.

IPC分类号： B23B51/00

CPC分类号： B23B51/0009 ,  B23B51/00 ,  B23B51/06 ,  B23B2250/12 ,  B23B2251/48 ,  B23B2251/50 ,  B23B2270/12 ,  Y10S408/713 ,  Y10T408/45 ,  Y10T408/9095 ,  Y10T408/90993

摘要： The invention relates to a drill consisting of a substantially cylindrical holder (10) with a drill tip (12). A cutting insert fitted in the groove having two main cuts (26', 26'') with forwardly adjacent cutting surfaces (32', 32''). The holder (10) has two bores (20', 20'') in a radial plane (R) of the drill, each of which is in the region of a rear surface (30', 30'') of the insert (25) and opens into a groove side (18', 18''). The longitudinal axes (24', 24'') of the drillings (20', 20'') run at an acute angle to the groove side (18', 18'') and the adjacent rear surface (30', 30'') of the insert (25).

公开(公告)号：EP0674560A1

公开(公告)日：1995-10-04

申请号：EP93924601.0

申请日：1993-11-08

申请人： GÜHRING, Jörg

发明人： REINAUER, Josef ,  KUHL, Hans, G.

IPC分类号： B23B51

CPC分类号： B23B51/0009 ,  B23B51/00 ,  B23B51/06 ,  B23B2250/12 ,  B23B2251/48 ,  B23B2251/50 ,  B23B2270/12 ,  Y10S408/713 ,  Y10T408/45 ,  Y10T408/9095 ,  Y10T408/90993

摘要： The invention relates to a drill consisting of a substantially cylindrical holder (10) with a drill tip (12). A cutting insert fitted in the groove having two main cuts (26', 26'') with forwardly adjacent cutting surfaces (32', 32''). The holder (10) has two bores (20', 20'') in a radial plane (R) of the drill, each of which is in the region of a rear surface (30', 30'') of the insert (25) and opens into a groove side (18', 18''). The longitudinal axes (24', 24'') of the drillings (20', 20'') run at an acute angle to the groove side (18', 18'') and the adjacent rear surface (30', 30'') of the insert (25).