公开(公告)号：EP1129297A1

公开(公告)日：2001-09-05

申请号：EP99953965.3

申请日：1999-11-04

申请人： TOGE-Dübel A. Gerhard KG

发明人： GERHARD, Anton

IPC分类号： F16B25/00

CPC分类号： F16B25/0026 ,  F16B25/0052 ,  F16B25/0094 ,  Y10T408/9097

摘要： The invention relates to a corrosion-resistant, threading (1), especially concrete screw, for screwing into a bore-hole with a bore-hole-wall, comprising an essentially cylindrical core (2) consisting of corrosion-resistant metal, with a central longitudinal axis (8), a thread (5) which is configured as a single piece with the core (2), and at least one cutting element (9) with at least one cutting head (12) for cutting into and hereby engaging with the bore-hole. The at least one cutting element (9) is introduced into the core (2) and permanently connected to said core and consists of a hardened metal. The at least one cutting head (12) is situated in the thread (5).

公开(公告)号：EP1124662A1

公开(公告)日：2001-08-22

申请号：EP99971362.1

申请日：1999-10-28

申请人： Eischeid, Karl

发明人： Eischeid, Karl

IPC分类号： B23B51/02 ,  B23B51/00

CPC分类号： B23B51/00 ,  B23B51/0009 ,  B23B51/02 ,  B23B2226/75 ,  B23B2251/04 ,  B23B2251/14 ,  B23B2251/50 ,  Y10T408/9093 ,  Y10T408/9097

摘要： The invention relates to a hard metal drill bit for use on a drill, especially on a rock drill or concrete drill, which comprises a drilling tip (3) which extends through the axis of rotation of the drill, and has major cutting edges (6) which slope downward on both sides and which are respectively formed by a major face (4) and a major flank (5). The major flank (5) forms a main clearance angle (14) with a plane, said plane being vertical to the axis of rotation, on the major cutting edge (6). In addition, said major flank diminishes with increased distance from the drilling tip (3).

公开(公告)号：EP1109645A1

公开(公告)日：2001-06-27

申请号：EP99938981.0

申请日：1999-08-03

申请人： Kennametal Inc.

发明人： MAGILL, William, C. ,  BALDWIN, Gary, D.

IPC分类号： B23C5/10

CPC分类号： B23C5/10 ,  Y10T407/1948 ,  Y10T407/1952 ,  Y10T407/1958 ,  Y10T408/9097

摘要： A ramp, plunge and feed milling cutter (100) having a cylindrical body (105) with cutting ribs (125) protruding beyond the length of the cylindrical body (105) to define a cavity (145). The integral single-piece construction of the milling cutter (100) permits the fabrication of small diameter plunge milling cutters having sufficient strength in the cutting rib (125) adjacent the cavity (145) to withstand the forces of a machining operation.

公开(公告)号：EP0985476A1

公开(公告)日：2000-03-15

申请号：EP99115873.4

申请日：1999-08-12

申请人： SANDVIK AKTIEBOLAG

发明人： Svenningsson, Inge ,  Sjölander, Ake

IPC分类号： B23B27/14 ,  B23B51/04

CPC分类号： B23B51/048 ,  Y10S408/713 ,  Y10T407/23 ,  Y10T408/909 ,  Y10T408/9097 ,  Y10T408/90993

摘要： In a twist drill comprising a shank, in addition to at least one helical, chip transporting flute, also a cutting insert (3) is included with at least one cutting edge (5), located between a front or top surface (6) and a flank surface (7), which extends at an angle to a reference plane intersecting the centre axis of the drill shank. In connection with at least a part of the cutting edge (5), a second flank surface (9) is provided, which extends at another angle in relation to said reference plane than the first-mentioned flank surface (7).

摘要翻译： 在包括柄的麻花钻中，除了至少一个螺旋形的芯片输送槽之外，切削刀片（3）还包括至少一个切割边缘（5），位于前表面（6）和前表面（6）和 一个侧面（7），其与与钻杆的中心轴线交叉的参考平面成一定角度延伸。 与切削刃（5）的至少一部分相关联，提供第二侧面（9），其相对于所述参考平面以比第一提到的侧面（7）更大的角度延伸。

公开(公告)号：EP0902661A1

公开(公告)日：1999-03-24

申请号：EP97922591.0

申请日：1997-05-01

申请人： DENTSPLY INTERNATIONAL, INC.

发明人： HEATH, Derek, E. ,  MOONEYHAN, Jerry, A.

IPC分类号： A61C5

CPC分类号： A61C5/42 ,  Y10T408/9097

摘要： An endodontic instrument which comprises an elongate shank which has a tapered working length adjacent the pilot end, and at least two continuous helical flutes formed along the tapered working length. The flutes are non-uniformly separated in the axial direction, and they define a relatively broad helical land and at least one relatively narrow helical surface. In one embodiment, the helical surface is a relatively narrow helical land and in another embodiment, the helical surface is a sharp helical edge.

摘要翻译： 一种牙根用器具，其包括细长的柄，其具有与导向端相邻的锥形加工长度，以及沿着锥形工作长度形成的至少两个连续的螺旋槽纹。 凹槽在轴向方向上不均匀地分开，并且它们限定相对宽的螺旋状的区域和至少一个相对较窄的螺旋形表面。 在一个实施例中，螺旋形表面是相对较窄的螺旋状平台，在另一实施例中，螺旋形表面是尖锐的螺旋形边缘。

公开(公告)号：EP0790877B1

公开(公告)日：1999-02-24

申请号：EP95937062.8

申请日：1995-11-10

申请人： KENNAMETAL INC.

发明人： KRENZER, Ulrich

IPC分类号： B23B51/02

CPC分类号： B23B27/22 ,  B23B51/048 ,  B23B2251/408 ,  B23B2251/48 ,  Y10S408/713 ,  Y10T408/909 ,  Y10T408/9097

摘要： A boring tool, in particular a borer, has disposable cutting bodies that form the cutting edges, and chip-removing grooves. A chip forming area (22) at least partially made of a more wear-resistant material than the borer body itself is arranged next to the faces (11) of the main cutting edges (5) approximately in the chip flow direction. In another embodiment, the chip forming area if made of the same material as the borer body and is subjected to a subsequent local hardening process that makes it wear-resistant.

公开(公告)号：EP0712343B1

公开(公告)日：1998-12-30

申请号：EP94922832.4

申请日：1994-08-02

申请人： KENNAMETAL HERTEL AG Werkzeuge + Hartstoffe

发明人： JUST, Werner ,  MÜHLFRIEDEL, Dieter

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2251/241 ,  B23B2251/402 ,  B23B2251/406 ,  Y10T408/85 ,  Y10T408/9097

摘要： The invention relates to a twist drill, especially for metals. It has a substantially cylindrical basic component (1) divided into a shaft (2) and a cutting section (3), the central longitudinal axis (5) of which is the axis of rotation of the twist drill. Several swarf grooves (4, 4') are made in the cylindrical surface of the basic component (1) which extend spirally and continuously from the shaft (2) to the drill tip (6) and bound a swarf chamber (35). The feature of the twist drill is that its drill core diameter tapers continuously from the drill tip (6) to the shaft (2).

公开(公告)号：EP0883455A2

公开(公告)日：1998-12-16

申请号：EP97905084.0

申请日：1997-02-26

申请人： KOMET Präzisionswerkzeuge Robert Breuning GmbH

发明人： SCHEER, Gerhard ,  BAXIVANELIS, Konstantin

IPC分类号： B23B51 ,  B23P15

CPC分类号： B23P15/32 ,  B23B51/02 ,  B23B51/0493 ,  B23B2250/12 ,  B23B2251/44 ,  B23B2251/48 ,  B23B2270/30 ,  Y10T408/45 ,  Y10T408/455 ,  Y10T408/905 ,  Y10T408/9097

摘要： The invention concerns a drilling tool for machine tools. The drilling tool comprises a drill body (14) with two chip-conveying grooves which are delimited at their flanks by helically curved ribs (28). Disposed at the end of the drill body (14) is a drill head (22) which comprises two segment parts (62), which are separated from each other by opposite axially aligned chip spaces (60', 60''), and two cutting plates (18, 20) which are each disposed in a recess in the segment parts in the region of an axially parallel radial chip-guide surface (66', 66'') at different radial spacings from the drill axis (34) with mutually partially overlapping working regions. At a transition point, the chip-guide surfaces (66', 66'') merge into the flanks (84) of the adjacent chip-conveying grooves (26). Disposed at at least one of the transition points is a transition surface (80) which is gradually recessed so that it widens the cross-section of the chip space (66', 66'') and merges into a flank of the adjacent chip-conveying groove (26).

公开(公告)号：EP0879109A1

公开(公告)日：1998-11-25

申请号：EP96913765.0

申请日：1996-05-03

申请人： SECO TOOLS AB

发明人： KARLSSON, Ronny ,  Bruhn, Johnny

IPC分类号： B23B ,  B23B51 ,  B23B31 ,  B23C5 ,  B23P15

CPC分类号： B23B31/1075 ,  B23B31/00 ,  B23B31/008 ,  B23B31/11 ,  B23B51/02 ,  B23B51/0486 ,  B23B2222/28 ,  B23B2251/02 ,  B23B2260/132 ,  B23P15/32 ,  Y10S408/713 ,  Y10T408/9097 ,  Y10T408/90993

摘要： The present invention relates to a tool and a cutting portion for cutting machining, wherein the tool in operative position preferably rotates about its longitudinal center axis. The tool comprises a tool body (12), a cutting portion (10) and a pull rod (11), said tool body having a front surface and said cutting portion having a support surface provided to dismountably abut against each other. The body has a shank portion (40). The front surface and the support surface comprise cooperating projections and recesses, which are provided to substantially alone transfer the cutting forces appearing during machining. The invention also relates to a separate tool tip, a cutting portion, a tool body as well as to a method for manufacturing a tool tip or a cutting portion.

公开(公告)号：EP0876867A1

公开(公告)日：1998-11-11

申请号：EP98850047.6

申请日：1998-04-03

申请人： SECO TOOLS AB

发明人： Möller, Claes

IPC分类号： B23B51/04

CPC分类号： B23B51/0493 ,  Y10T408/45 ,  Y10T408/455 ,  Y10T408/9095 ,  Y10T408/9097

摘要： The present invention relates to a drill for chip removing machining, including a shank (10) with a first tip forming end (12), with at least one cutting edge, and a second opposed end (14), two chip flutes (22, 24) which extend from the first tip forming end (12) to the second opposite end (14) of the shank (10), and a cooling channel (26) located between the chip flutes (22, 24) which extends through the shank (10) of the drill from the second end (14) and in direction towards the tip forming the end (12), said cooling channel (26) located between the chip flutes (22, 24) dividing at a position between the first tip forming end (12) and the second end (14) into two branch channels (34, 36), which terminate in the first tip forming the end (12).
With known drills of the above-captioned type the depth of the chip flute for the central insert is limited by the central cooling channel, the center axis of which coincides with the center axis of the shank. This results in that the circularly shaped chip from the central insert has a tendency to stick in the associated chip flute.
The drill according to the present invention is characterized by that the cooling channel (26) located between the chip flutes (22,24) is eccentrically located relative to the center axis (16) of the shank (10) and that the center axis (16) of the shank (10) is situated in the cooling channel (26) located between the chip flutes (22,24).

摘要翻译： 本发明涉及一种用于切屑去除加工的钻头，包括具有第一尖端形成端（12）的柄（10），至少一个切削刃和第二相对端（14），两个切屑槽（22， （12）延伸到所述柄部（10）的所述第二相对端部（14）的冷却通道（24），以及位于延伸穿过所述柄部（10）的所述芯片凹槽（22,24）之间的冷却通道（26） 其特征在于，所述钻头（10）从所述第二端（14）朝向形成所述端部（12）的尖端的方向延伸，所述冷却通道（26）位于所述排屑槽（22,24） 将端部（12）和第二端（14）形成为两个分支通道（34,36），所述两个分支通道终止于形成端部（12）的第一尖端中。 在已知的上述类型的钻头中，用于中央插入件的排屑槽的深度受中央冷却通道的限制，中央冷却通道的中心轴线与柄部的中心轴线重合。 这导致来自中心插入件的圆形芯片倾向于粘附在相关的排屑槽中。 根据本发明的钻头的特征在于，位于所述排屑槽（22,24）之间的所述冷却通道（26）相对于所述柄部（10）的中心轴线（16）偏心地定位，并且所述中心轴线（ 所述柄（10）的所述端部（16,16）位于位于所述排屑槽（22,24）之间的所述冷却通道（26）中。