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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
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.
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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
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.
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Patent Agency Ranking
公开(公告)号：US09346102B2
公开(公告)日：2016-05-24
申请号：US14315617
申请日：2014-06-26
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Erik Selin , Ronnie Lof
CPC classification number: B23B27/005 , B23B27/143 , B23B27/1659 , B23B2200/0447 , B23B2200/086 , Y10T407/22 , Y10T407/24
Abstract: A cutting insert for turning includes an upper side, a lower side, a clearance surface connecting the upper side and the lower side, and an upper cutting edge. The upper cutting edge forms a primary edge portion and a secondary edge portion connected by a nose edge portion. On the upper side, a chip former is formed, including a nose bottom surface formed behind the nose edge portion, a primary main bottom surface extending along the primary edge portion, and, between the nose bottom surface and the primary main bottom surface, a continuous primary elevated bottom surface 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.
Abstract translation: 用于车削的切削刀片包括上侧，下侧，连接上侧和下侧的间隙表面以及上切削刃。 上切割刃形成由鼻缘部分连接的主边缘部分和副边缘部分。 在上侧，形成有形成在前端部的后方形成的鼻底面的芯片形成体，沿着主边缘部延伸的主要主底面，在鼻部底面与主要主底面之间， 连续的初级升高的底面沿着主边缘部分延伸，具有比初级边缘部分的高度低但高于鼻部底部表面和主要主要底部表面的最低点的最低点。
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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
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.
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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
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.
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公开(公告)号：US09375791B2
公开(公告)日：2016-06-28
申请号：US14219288
申请日：2014-03-19
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Ronnie Lof , Erik Selin , Joe Truong
CPC classification number: B23B27/143 , B23B2200/04 , B23B2200/0447 , B23B2200/081 , B23B2200/201 , B23B2200/321 , B23B2200/323 , Y10T407/235 , Y10T407/24
Abstract: The present disclosure relates to a polygonal turning insert having primary cutting edges, which individually include a nose edge and two main edges, which converge toward the same. Behind the nose edge, chip-directing guide surfaces are formed, on one hand, with a breast surface included in a knob situated behind the nose edge along a bisector between the main edges, and, on the other hand, with a pair of flank surfaces included in a land there behind. At a distance behind the knob, there is formed a second breast surface, the upper part of which is situated on a higher level than the upper part of the first breast surface. In such a way, it is guaranteed that thin chips, which tend to pass or jump over the first breast surface without being affected by the same, will impinge on the second, higher breast surface and be subjected to guiding by the same.
Abstract translation: 本发明涉及一种多边形车削刀片，其具有主切削刃，该主切削刃分别包括鼻部边缘和两个朝向它们会聚的两个主边缘。 在鼻缘之后，芯片引导引导表面一方面形成一乳头表面，乳房表面包括在位于主棱边之间的平分线之后位于鼻边缘后面的旋钮中，另一方面与一对侧面 表面包括在后面的一块土地上。 在旋钮后面的距离处形成有第二乳房表面，其第二乳房表面的上部位于比第一乳房表面的上部更高的水平上。 以这种方式，可以确保倾向于在第一乳房表面上通过或跳过而不受其影响的薄片将撞击在第二较高乳房表面上并受其引导。
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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
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.
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