公开(公告)号：EP2979812B1

公开(公告)日：2018-04-04

申请号：EP13880617.9

申请日：2013-12-27

申请人： Sumitomo Electric Hardmetal Corp.

发明人： WATANOBE, Naoki ,  OKAMURA, Katsumi ,  YONEKURA, Hiroki ,  KOROGI, Yosuke

IPC分类号： B24B3/34 ,  B23B27/14 ,  B23B27/20 ,  B24B41/06

CPC分类号： B24B3/34 ,  B23B27/145 ,  B23B27/18 ,  B23B2200/0447 ,  B23B2200/049 ,  B23B2200/085 ,  B23B2200/242 ,  B23B2200/283 ,  B23B2222/28 ,  B23B2226/125 ,  Y10T407/24

摘要： Provided are: a method for manufacturing a cubic boron nitride cutting tool including a base metal and a sintered cubic boron nitride compact at a corner portion of the base metal, the method being capable of improving the accuracy of the center height to a large extent and sufficiently reducing the angle of inclination or the width of a negative rake face; and the cubic boron nitride cutting tool. The method includes grinding the sintered cubic boron nitride compact by pressing the sintered cubic boron nitride compact against an end face of a grindstone of a grinder, whose position and orientation are controllable, to form a flank face and a rake face on the sintered cubic boron nitride compact while the base metal of the cubic boron nitride cutting tool is tightly held by a chuck of the grinder. The grinding is performed in such a manner that the sintered cubic boron nitride compact is substantially ground. In the grinding to form the rake face, the rake face is formed so as to be recessed from a top face of the base metal or only a portion of the sintered cubic boron nitride compact that protrudes from a base-metal rake face is ground while the tool is continuously held by the chuck.

公开(公告)号：EP3153257A1

公开(公告)日：2017-04-12

申请号：EP15189176.9

申请日：2015-10-09

申请人： Sandvik Intellectual Property AB

发明人： LÖF, Ronnie ,  JOHANSSON, Adam

IPC分类号： B23B1/00 ,  B23B27/16

CPC分类号： B23B3/36 ,  B23B1/00 ,  B23B27/145 ,  B23B27/1644 ,  B23B2200/0447 ,  B23B2200/049 ,  B23B2200/081 ,  B23B2200/125 ,  B23B2200/165 ,  B23B2200/201 ,  B23B2200/202 ,  B23B2200/321 ,  B23B2220/24

摘要： A method to form a surface (53) on a metal work piece (50) comprising a first machining step of providing a turning insert (1) comprising a first cutting edge (11), a second cutting edge (12) and a convex nose cutting edge (10) connecting the first (11) and second (12) cutting edges, selecting a nose angle (α) formed between the first (11) and second (12) cutting edges to be less than or equal to 85°. The method comprises the further steps of adapting the second cutting edge (12) such that it forms a back clearance angle (ψ) of more than 90° in a feed direction (99), positioning all parts of the turning insert (1) ahead of the nose cutting edge (10) in the feed direction (99), rotating the metal work piece (50) around a rotational axis (A3) in a first direction, and moving the turning insert (1) in a direction parallel to or at an angle less than 45° relative to the rotational axis (A3) such that the first cutting edge (11) is active and ahead of the nose cutting edge (10) in the feed direction (99) and such that the surface (53) at least partly is formed by the nose cutting edge (10).

摘要翻译： 一种在金属工件（50）上形成表面（53）的方法，包括：第一加工步骤，提供包括第一切削刃（11），第二切削刃（12​​）和凸起凸起 连接第一（11）和第二（12）切削刃的切削刃（10），选择在第一（11）和第二（12）切削刃之间形成的刀尖角（±）小于或等于85°。 该方法包括进一步的步骤，使第二切削刃（12​​）适于在进给方向（99）上形成大于90°的后间隙角（È），将车削刀片（1）的所有部分定位在前面 在所述进给方向（99）上的所述前刀刃（10）沿着第一方向旋转所述金属工件（50）绕旋转轴线（A3）旋转，并且使所述车削刀片（1）沿平行于或 相对于旋转轴线（A3）以小于45°的角度，使得第一切削刃（11）在进给方向（99）上有效并在前刀刃（10）的前方，并且使得表面（53） ）至少部分地由前刀刃（10）形成。

公开(公告)号：EP3124148A1

公开(公告)日：2017-02-01

申请号：EP15768168.5

申请日：2015-03-26

申请人： Kyocera Corporation

发明人： FUJII, Kanenori

IPC分类号： B23B27/22

CPC分类号： B23B27/143 ,  B23B2200/0447 ,  B23B2200/081 ,  B23B2270/20

摘要： A cutting insert of one aspect includes a top surface including a first corner portion with an acute angle and a second corner portion with an obtuse angle; and a top cutting edge disposed on a ridge line at an intersection between the top surface and a side surface. The top cutting edge includes a first corner cutting edge, a first major cutting edge, a second corner cutting edge, and a second major cutting edge. The top surface includes a first breaker protrusion protruding toward the first corner portion and a second breaker protrusion protruding toward the second corner portion. A gap between the first breaker protrusion and the first corner cutting edge is larger than a gap between the second breaker protrusion and the second corner cutting edge in a top view, a gap between the first breaker protrusion and the first major cutting edge becomes larger as a distance from the first corner cutting edge increases, and a gap between the second breaker protrusion and the second major cutting edge becomes smaller as a distance from the second corner cutting edge increases.

摘要翻译： 一方面的切削刀片包括顶表面，其包括具有锐角的第一角部和具有钝角的第二角部; 以及设置在所述顶表面和侧表面之间的交叉点处的脊线上的顶切割刃。 顶切削刃包括第一角切削刃，第一主切削刃，第二切削刃和第二主切削刃。 顶表面包括朝向第一角部突出的第一断路器突出部和朝向第二拐角部分突出的第二断路器突出部。 在顶视图中，第一断路器突起和第一拐角切割刃之间的间隙大于第二断屑器突起和第二拐角切削刃之间的间隙，第一断屑器突起与第一主切削刃之间的间隙变大 距离第一角刃的距离增加，并且随着与第二拐角切削刃的距离增加，第二断屑器突起和第二主切削刃之间的间隙变小。

公开(公告)号：EP2995400A4

公开(公告)日：2016-12-14

申请号：EP14794478

申请日：2014-03-25

申请人： SUMITOMO ELECTRIC HARDMETAL CORP

发明人： HIRANO TSUTOMU ,  OKAMURA KATSUMI ,  WATANOBE NAOKI

IPC分类号： B23B27/20 ,  B23B27/14

CPC分类号： B23B27/141 ,  B22F7/062 ,  B22F2005/001 ,  B23B2200/0447 ,  B23B2200/0471 ,  B23B2200/049 ,  B23B2200/086 ,  B23B2200/286 ,  B23B2226/125 ,  C22C26/00 ,  C22C2026/003 ,  Y10T407/24

摘要： An object is to prolong the life of a cubic boron nitride cutting tool used for cutting a heat-resistant alloy. A cubic boron nitride cutting tool includes an edge tip made of a sintered cubic boron nitride compact having a thermal conductivity within the range of 20 to 70 W/m·K and including cubic boron nitride particles having an average particle diameter within the range of 0.5 µm to 2 µm; and a base metal that holds the edge tip at a corner portion of the base metal, wherein a cutting edge formed on the edge tip of the tool has a positive rake angle.

摘要翻译： 目的是延长用于切割耐热合金的立方氮化硼切割工具的寿命。 一种立方氮化硼切割工具包括由热传导率在20至70W / m·K范围内的立方氮化硼烧结体制成的边缘尖端，并且包括平均粒径在0.5的范围内的立方氮化硼颗粒 μm至2μm; 以及将所述边缘端部保持在所述基底金属的角部的基底金属，其中，形成在所述工具的所述边缘尖端上的切削刃具有正的前角。

公开(公告)号：EP2944404A1

公开(公告)日：2015-11-18

申请号：EP15171120.7

申请日：2012-08-30

申请人： ISCAR LTD.

发明人： Krishtul, Roman

IPC分类号： B23B27/14

CPC分类号： B23B27/143 ,  B23B2200/0447 ,  B23B2200/081 ,  B23B2200/082 ,  B23B2200/321 ,  B23B2260/104 ,  Y10T407/23 ,  Y10T407/235 ,  Y10T407/24

摘要： The present application relates to a cutting insert (20) comprising opposing top and bottom ends (22,24) and at least first and second side surfaces (26A,26B) extending therebetween, a first insert corner (44A) comprising a corner cutting edge (54) formed at an intersection (56) of the first and second side surfaces and the top end, a land (58) extending along the intersection, a chip evacuation surface (64), a chip deflecting surface (66) extending between the land and chip evacuation surface, wherein the land, the chip evacuation surface and the chip deflecting surface are all disposed at the top end, and a chip-control arrangement (60) at the first insert corner, the chip-control arrangement comprising a first projection (128) which is elongated and disposed on the top end adjacent to the intersection, wherein the first projection is spaced-apart from the land, the first projection comprises first and second extremities (78,80) and a middle portion (82) therebetween, each of the first and second extremities is respectively closer to the first side surface than the middle portion, and the first and second extremities are generally perpendicular to the middle portion and extend in a direction towards the first side surface therefrom.

摘要翻译： 本申请涉及一种包括相对的顶端和底端（22,24）以及在它们之间延伸的至少第一和第二侧表面（26A，26B）的切削刀片（20），第一刀片角（44A）包括角切削刃 （54），形成在所述第一和第二侧表面和所述顶端的交叉点（56）处，沿所述交点延伸的平台（58），排屑表面（64），在所述第一和第二侧表面之间延伸的切屑偏转表面（66） 其中所述焊盘，所述芯片排出表面和所述芯片偏转表面都设置在所述顶端，以及在所述第一插入角处的芯片控制装置（60），所述芯片控制装置包括第一 突出部（128），其延伸并且设置在邻近交叉点的顶端上，其中第一突起与脊部间隔开，第一突起包括第一和第二末端（78,80）和中间部分（82） 其间，每个冷杉 第一和第二末端分别比中间部分更靠近第一侧表面，并且第一和第二末端大致垂直于中间部分并且沿着朝向第一侧表面的方向延伸。

公开(公告)号：EP2755785B1

公开(公告)日：2015-10-21

申请号：EP12768908.1

申请日：2012-08-30

申请人： Iscar Ltd.

发明人： KRISHTUL, Roman

IPC分类号： B23B27/14

CPC分类号： B23B27/143 ,  B23B2200/0447 ,  B23B2200/081 ,  B23B2200/082 ,  B23B2200/321 ,  B23B2260/104 ,  Y10T407/23 ,  Y10T407/235 ,  Y10T407/24

公开(公告)号：EP2818266A1

公开(公告)日：2014-12-31

申请号：EP13173982.3

申请日：2013-06-27

申请人： Sandvik Intellectual Property AB

发明人： Löf, Ronnie ,  Selin, Erik

IPC分类号： B23B27/14

CPC分类号： B23B27/005 ,  B23B27/143 ,  B23B27/1659 ,  B23B2200/0447 ,  B23B2200/086 ,  Y10T407/22 ,  Y10T407/24

摘要： A cutting insert (100) for turning comprising an upper side (102), a lower side (103), a clearance surface (105) connecting the upper side and the lower side, and an upper cutting edge (106). The upper cutting edge forms a primary edge portion (112) and a secondary edge portion (113) connected by a nose edge portion (114). On the upper side, a chip former (115) is formed, comprising a nose bottom surface (116) formed behind the nose edge portion, a primary main bottom surface (117) extending along the primary edge portion, and, between the nose bottom surface and the primary main bottom surface, a continuous primary elevated bottom surface (118) extending along the primary edge portion, having a lowest point lower than the level of the primary edge portion but higher than the lowest point of each of the nose bottom surface and the primary main bottom surface.

摘要翻译： 一种用于车削的切削刀片（100），包括上侧（102），下侧（103），连接上侧和下侧的间隙表面（105）和上切削刃（106）。 上切割刃形成主边缘部分（112）和由边缘部分（114）连接的副边缘部分（113）。 在上侧，形成有切屑形成部（115），其包括形成在前端部的后方的鼻部底面（116），沿主缘部延伸的主要主底面（117），以及鼻部底部 表面和主要主底表面，沿着主边缘部分延伸的连续主要升高的底部表面（118），其具有比主要边缘部分的高度低但高于每个鼻部底部表面的最低点的最低点 和主要主底面。

公开(公告)号：EP2755785A1

公开(公告)日：2014-07-23

申请号：EP12768908.1

申请日：2012-08-30

申请人： Iscar Ltd.

发明人： KRISHTUL, Roman

IPC分类号： B23B27/14

CPC分类号： B23B27/143 ,  B23B2200/0447 ,  B23B2200/081 ,  B23B2200/082 ,  B23B2200/321 ,  B23B2260/104 ,  Y10T407/23 ,  Y10T407/235 ,  Y10T407/24

摘要： A cutting insert (20) has at least first and second side surfaces (26A,26B), with a chip-control arrangement (60). The chip-control arrangement includes at least one projection (20, 128) disposed at an intersection (56) of a corner (44A) of the cutting insert. When the chip -control arrangement includes two projections (28,128,30,130) they can be disposed symmetrically on both sides of the intersection. Each of the at least one projections is elongated and extends longitudinally along an associated side surface.

公开(公告)号：EP2623242A1

公开(公告)日：2013-08-07

申请号：EP11829132.7

申请日：2011-09-27

申请人： Tungaloy Corporation

发明人： BHAGATH Kedar Suresh ,  YAMAGUCHI Takashi

IPC分类号： B23C5/20 ,  B23C5/06 ,  B23C5/10

CPC分类号： B23C5/207 ,  B23B27/007 ,  B23B27/145 ,  B23B27/1607 ,  B23B27/1611 ,  B23B2200/0409 ,  B23B2200/0447 ,  B23B2200/202 ,  B23B2200/204 ,  B23C5/06 ,  B23C5/205 ,  B23C2200/0444 ,  B23C2200/125 ,  B23C2200/201 ,  B23C2200/203 ,  B23C2200/205 ,  B23C2200/208 ,  Y10T407/1906 ,  Y10T407/22 ,  Y10T407/2268 ,  Y10T407/23

摘要： A cutting insert (10) according to an aspect of the present invention is provided with a plurality of cutting portions (18) formed at the intersection portion of each end surface (12, 14) and a peripheral surface (16). Each cutting portion includes a first cutting edge (18a) and a second cutting edge (18b). In an end surface view, first corners (20) and second corners (22) which differ in their internal angles are alternately formed in each end surface. An internal angle α of the first corner (20) is smaller than an internal angle β of the second corner (22, 122, 222). Each first cutting edge (18a) has a portion extending to approach the median plane M as a distance from a corresponding first corner (20) increases. A first side surface portion (30a) extending on the peripheral surface from each first cutting edge forms an insert internal obtuse angle to a plane passing through the first cutting edge and being in parallel to the median plane M, and a second side surface portion (30b) extending on the peripheral surface from each second cutting edge forms an insert internal acute angle to a plane passing through the second cutting edge and being in parallel to the median plane M.

摘要翻译： 根据本发明的一个方面的切削刀片（10）设置有形成在每个端面（12,14）和外围表面（16）的相交部分处的多个切削部分（18）。 每个切削部分包括第一切削刃（18a）和第二切削刃（18b）。 在端面视图中，其内角不同的第一角部（20）和第二角部（22）交替地形成在每个端面中。 第一拐角（20）的内角α小于第二拐角（22,122,222）的内角β。 随着离对应的第一拐角（20）的距离增加，每个第一切削刃（18a）具有延伸以接近正中面M的部分。 从每个第一切削刃在圆周表面上延伸的第一侧表面部分（30a）与穿过第一切削刃的平面形成插入件内部钝角并与中间平面M平行，并且第二侧表面部分（30a） 30b）从每个第二切削刃在外围表面上延伸，与穿过第二切削刃的平面形成插入件内部锐角并平行于中间平面M.

公开(公告)号：EP2484467A1

公开(公告)日：2012-08-08

申请号：EP11153153.9

申请日：2011-02-03

申请人： Seco Tools AB

发明人： Wahlsten, Daniel ,  M'Saoubi, Rachid ,  Engström, Hindrik ,  Bueno-Martinez, Carlos

IPC分类号： B23B27/14

CPC分类号： B23B27/1611 ,  B23B27/141 ,  B23B2200/0447 ,  B23B2200/0461 ,  B23B2200/245 ,  Y10T407/23

摘要： Then application relates to a cutting insert (21), comprising a cutting edge (29). The cutting edge (29) is symmetrical about a centerline (CL), the cutting edge (29) has a first edge radius (R1) at a first point (31) at the centerline (CL) of the cutting edge (29) and a different, second edge radius (R2) at second points (33) on opposite sides of and remote from the centerline (CL) of the cutting edge (29). The first edge radius (R1) is larger than the second edge radius (R2).

摘要翻译： 然后应用涉及一种包括切削刃（29）的切削刀片（21）。 切割边缘（29）关于中心线（CL）对称，切割边缘（29）在切割边缘（29）的中心线（CL）处的第一点（31）处具有第一边缘半径（R1），并且 在切割边缘（29）的中心线（CL）的相对侧和远离切割边缘（29）的相对侧上的第二点（33）处的不同的第二边缘半径（R2）。 第一边缘半径（R1）大于第二边缘半径（R2）。