公开(公告)号：WO2019086218A1

公开(公告)日：2019-05-09

申请号：PCT/EP2018/077545

申请日：2018-10-10

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： JOHANSSON, Adam ,  LÖF, Ronnie

IPC: B23B27/16 ,  B23B27/14

Abstract: A turning insert (1) comprising a top surface (8), an opposite bottom surface (9), wherein a reference plane (RP) located parallel to and between the top surface (8) and the bottom surface (9). A nose portion (15) comprising a convex nose cutting edge (10), a first cutting edge (11) and a second cutting edge (12). The nose cutting edge (10) connects the first (11) and second (12) cutting edges. The first (11) and second (12) cutting edges forms a nose angle (α) of 71-85° relative to each other. The nose portion (15) comprises a third convex cutting edge (60) adjacent to the first cutting edge (11) and a fourth cutting edge (61) adjacent to the third convex cutting edge (60). The fourth cutting edge (61) forms an angle (β) of 10-30° relative to a bisector. The distance from at least a portion of the fourth cutting edge (61) to the reference plane (RP) is increasing at increasing distance from the nose cutting edge (10).

公开(公告)号：WO2017060026A1

公开(公告)日：2017-04-13

申请号：PCT/EP2016/071093

申请日：2016-09-07

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： LÖF, Ronnie ,  JOHANSSON, Adam

IPC: B23B27/16 ,  B23B1/00

CPC classification number: B23B27/164 ,  B23B1/00 ,  B23B27/1644 ,  B23B27/1651 ,  B23B2200/0447 ,  B23B2200/0452 ,  B23B2200/081 ,  B23B2200/128 ,  B23B2200/202 ,  B23B2200/204 ,  B23B2200/321

Abstract: The invention relates to a turning insert (1) comprising a top surface (8), an opposite bottom surface (9), side surfaces (13, 13') connecting the top surface (8) and the bottom surface (9), and two opposite nose portions (15, 15'). Each nose portion (15, 15') comprising a convex nose cutting edge (10, 10'), a first cutting edge (11, 11') and a second cutting edge (12, 12'). The convex nose cutting edge (10, 10') connects the first (11, 11') and second (12, 12') cutting edges. A reference plane (RP) is located parallel to and between the top surface (8) and the bottom surface (9). A center axis (Al) extends perpendicular to the reference plane (RP). A bisector (7) extends equidistantly from the first (11) and second (12) cutting edges. In a top view the first (11) and second (12) cutting edges on the same nose portion (15) forms a nose angle (a) of 70-85° relative to each other. Each nose portion (15, 15') comprises a third convex cutting edge (60) adjacent to the first cutting edge (11) and a fourth cutting edge (61) adjacent to the third cutting edge (60). In a top view the fourth cutting edge (61) forms an angle (β) of 0-34° relative to the bisector (7). The distance from the forth cutting edge (61) to the reference plane (RP) is decreasing away from the nose cutting edge (10).

Abstract translation: 本发明涉及一种包括顶表面（8），相对的底表面（9），连接顶表面（8）和底表面（9）的侧表面（13,13'）的转动刀片（1），以及 两个相对的鼻部（15,15'）。 每个鼻部分（15,15'）包括凸起的前刀刃（10,10'），第一切削刃（11,11'）和第二切削刃（12​​,12'）。 凸起的前刀刃（10,10'）连接第一（11,11'）和第二（12,12'）切削刃。 参考平面（RP）平行于顶表面（8）和底表面（9）之间。 中心轴（A1）垂直于参考平面（RP）延伸。 平分线（7）从第一（11）和第二（12）切割边缘等距延伸。 在顶视图中，同一鼻部（15）上的第一（11）和第二（12）切割刃相对于彼此形成70-85°的鼻角（a）。 每个鼻部（15,15'）包括与第一切割边缘（11）相邻的第三凸形切割边缘（60）和与第三切割边缘（60）相邻的第四切割边缘（61）。 在顶视图中，第四切割刃（61）相对于平分线（7）形成0-34°的角度（β）。 从第四切削刃（61）到参考平面（RP）的距离从前刀刃（10）减小。

公开(公告)号：WO2017060027A1

公开(公告)日：2017-04-13

申请号：PCT/EP2016/071101

申请日：2016-09-07

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： LÖF, Ronnie ,  JOHANSSON, Adam

IPC: B23B1/00 ,  B23B27/16

CPC classification number: 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

Abstract: 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 (a) 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).

Abstract translation: 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）切割刃的切割刃（10），选择形成在第一（11）和第二（12）切割刃之间的鼻角（a）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（Ψ），将转动刀片（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f的前端切割刃（10）的前方有效 （99），并且使得表面（53）至少部分地由前刀刃（10）形成。

公开(公告)号：WO2019052693A1

公开(公告)日：2019-03-21

申请号：PCT/EP2018/057164

申请日：2018-03-21

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： JOHANSSON, Adam ,  LÖF, Ronnie

IPC: B23B1/00 ,  B23B27/00 ,  B23B27/14 ,  B23B29/03

Abstract: A turning tool (1) for internal turning of a metal work piece (18), comprising a rear end (3), an opposite forward end (4) and a longitudinal center axis (A1) extending therebetween, a first nose cutting edge (5) comprising a first radially distal point (10) having an associated first rake face (16), the first nose cutting edge (5) separating and connecting a first forward cutting edge (12) and a first rearward cutting edge (14), the turning tool (1) comprises a second nose cutting edge (6) comprising a second radially distal point (11) having an associated second rake face (17), the second nose cutting edge (6) separating and connecting a second forward cutting edge (13) and a second rearward cutting edge (15), the first and second radially distal points (10, 11) being positioned on opposite sides or substantially opposite sides relative to the longitudinal center axis (A1), the first and second rake faces (16, 17) facing opposite directions, the second radially distal point (11) being positioned ahead of the first radially distal point (10), the first forward cutting edge (12) forming an acute first entering angle (a), the second forward cutting edge (13) forming an obtuse second back clearance angle (β), and the second rearward cutting edge (15) forming an acute second entering angle (δ), and a machining method.

公开(公告)号：WO2017060025A1

公开(公告)日：2017-04-13

申请号：PCT/EP2016/071090

申请日：2016-09-07

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： LÖF, Ronnie ,  JOHANSSON, Adam

IPC: B23B27/16 ,  B23B1/00

CPC classification number: B23B27/164 ,  B23B1/00 ,  B23B27/1651 ,  B23B2200/049 ,  B23B2200/081 ,  B23B2200/125 ,  B23B2200/165 ,  B23B2200/201 ,  B23B2200/202 ,  B23B2200/321

Abstract: A turning insert (1) comprising a top surface (8), an opposite bottom surface (9), a reference plane (RP) located parallel to and between the top surface (8) and the bottom surface (9), a center axis (A1) extending perpendicular to the reference plane (RP) and intersecting the reference plane (RP), the top surface (8) and the bottom surface (9). Side surfaces (13, 13', 13") connects the top surface (8) and the bottom surface (9). Three nose portions (15, 15', 15") are formed symmetrically relative to the center axis (A1). Each nose portion (15, 15', 15") 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. In a top view the first (11) and second (12) cutting edges on the same nose portion (15) forms a nose angle (a) of 25-50° relative to each other. The distance from the first cutting edge (11) to the reference plane (RP) varies in such a way that that this distance is decreasing at increasing distance from the nose cutting edge (10).

Abstract translation: 一种车削刀片（1），包括顶表面（8），相对的底表面（9），平行于顶表面（8）和底表面（9）之间的参考平面（RP），中心轴线 （A1），垂直于参考平面（RP）延伸并与参考平面（RP），顶表面（8）和底表面（9）相交。 侧表面（13,13'，13“）连接顶表面（8）和底表面（9），三个鼻部（15,15'，15”）相对于中心轴线（A1）对称地形成。 每个鼻部分（15,15'，15“）包括第一切割边缘（11），第二切割边缘（12）和凸起前端切割边缘（10），所述第一切割边缘（11）和第二切割刃 在顶视图中，同一鼻部（15）上的第一（11）和第二（12）切割刃相对于彼此形成25-50°的鼻角（a），与第一切割刃 11）到参考平面（RP）以这样的方式变化，使得该距离随着距离鼻尖切割刃（10）的距离增加而减小。