公开(公告)号：US10421128B2

公开(公告)日：2019-09-24

申请号：US15893111

申请日：2018-02-09

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Ronnie Lof ,  Adam Johansson

IPC: B23B1/00 ,  B23B3/36 ,  B23B27/16 ,  B23B27/14

Abstract: A method to form a surface on a metal work piece includes providing a turning insert that has a nose angle formed between first and second cutting edges less than or equal to 85°; providing a turning tool having a tool body with an insert seat in which the turning insert is mountable; arranging the orientation of the second cutting edge such that it forms a back clearance angle of more than 90° in a feed direction; rotating the metal work piece around a rotational axis in a first direction; moving the turning insert in a direction parallel to or at an angle less than 45° relative to the rotational axis; and setting the longitudinal axis of the tool body at an angle greater than zero but less than or equal to 90° relative to the rotational axis of the metal work piece.

公开(公告)号：US09737935B2

公开(公告)日：2017-08-22

申请号：US15289095

申请日：2016-10-07

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Ronnie Lof ,  Adam Johansson

IPC: B23C5/20 ,  B23B27/16

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: A turning insert includes a top surface, an opposite bottom surface, side surfaces connecting the top surface and the bottom surface and two opposite nose portions. Each nose portion includes a convex nose cutting edge, a first cutting edge and a second cutting edge. The convex nose cutting edge connects the first and second cutting edges. A bisector extends equidistantly from the first and second cutting edges. In a top view the first and second cutting edges on the same nose portion form a nose angle (α) of 70-85° relative to each other. Each nose portion includes a third convex cutting edge adjacent to the first cutting edge and a fourth cutting edge adjacent to the third cutting edge. In a top view the fourth cutting edge forms an angle (β) of 0-34° relative to the bisector.

公开(公告)号：US09925596B2

公开(公告)日：2018-03-27

申请号：US14715447

申请日：2015-05-18

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Adam Johansson ,  Gustav Gewers

IPC: B23B27/10 ,  B23B27/14 ,  B23B27/16

CPC classification number: B23B27/10 ,  B23B27/143 ,  B23B27/1618 ,  B23B27/1622 ,  B23B2200/0423 ,  B23B2200/321 ,  B23B2200/3627 ,  B23B2200/3681 ,  B23B2205/12 ,  B23B2205/16 ,  B23B2250/12 ,  Y10T407/14 ,  Y10T407/235

Abstract: A turning tool holder includes a tool body, a cutting tool insert, and a shim. A coolant conduit system extends through the turning tool holder, a first portion of the coolant conduit system extending through the tool body and an end portion of the coolant conduit system extending through the shim. The end portion of the coolant conduit system includes a through hole extending from a first surface to an opposite second surface of the shim. The end portion has a coolant outlet opening at the second surface, the coolant outlet opening being formed by the shim alone. A jet of coolant from the coolant outlet opening may be directed towards a space expected to have a cutting zone of a workpiece. Further a cutting tool insert arranged to be used in a turning tool holder is disclosed.

公开(公告)号：US09925594B2

公开(公告)日：2018-03-27

申请号：US15289101

申请日：2016-10-07

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Ronnie Lof ,  Adam Johansson

IPC: B23B3/30 ,  B23B3/36 ,  B23B27/14

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 on a metal work piece includes providing a turning insert having a first cutting edge, a second cutting edge and a convex nose cutting edge connecting the first and second cutting edges, a nose angle formed between the first and second cutting edges being less than or equal to 85°; arranging the second cutting edge such that it forms a back clearance angle of more than 90° in a feed direction; positioning all parts of the turning insert ahead of the nose cutting edge in the feed direction; rotating the metal work piece around a rotational axis in a first direction; and moving the turning insert in a direction parallel to or at an angle less than 45° relative to the rotational axis, such that the surface at least partly is formed by the nose cutting edge.

公开(公告)号：US11331728B2

公开(公告)日：2022-05-17

申请号：US16760189

申请日：2018-10-10

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Adam Johansson ,  Ronnie Lof

IPC: B23B27/16 ,  B23B27/14

Abstract: A turning insert includes a top surface, an opposite bottom surface and a reference plane located parallel to and between the top surface and the bottom surface. A nose portion has a convex nose cutting edge, a first cutting edge and a second cutting edge. The nose cutting edge connects the first and second cutting edges. The first and second cutting edges form a nose angle (α) of 71-85° relative to each other. The nose portion includes a third convex cutting edge adjacent to the first cutting edge and a fourth cutting edge adjacent to the third convex cutting edge. The fourth cutting edge forms an angle (β) of 10-30° relative to a bisector. The distance from at least a portion of the fourth cutting edge to the reference plane increases as the distance from the nose cutting edge increases.

公开(公告)号：US11273499B2

公开(公告)日：2022-03-15

申请号：US15289087

申请日：2016-10-07

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Ronnie Lof ,  Adam Johansson

IPC: B23B27/16 ,  B23B1/00

Abstract: A turning insert includes a top surface, an opposite bottom surface, a reference plane located parallel to and between the top surface and the bottom surface, and a center axis extending perpendicular to the reference plane and intersecting the reference plane (RP), the top surface and the bottom surface. Side surfaces connect the top surface and the bottom surface. Three nose portions are formed symmetrically relative to the center axis. Each nose portion includes a first cutting edge, a second cutting edge and a convex nose cutting edge connecting the first) and second cutting edges. In a top view the first and second cutting edges on the same nose portion form a nose angle of 25-50° relative to each other. The distance from the first cutting edge to the reference plane varies in such a way that that this distance is decreasing at increasing distance from the nose cutting edge.