公开(公告)号：US10654110B2

公开(公告)日：2020-05-19

申请号：US15922233

申请日：2018-03-15

申请人： Kennametal Inc.

发明人： Michael Hacker ,  Sebastian Kunschir

IPC分类号： B23B29/02 ,  B23B27/00

摘要： The present application relates to a cutting tool (2), in particular a boring bar (2) for machining holes (16) separated from each other in an axial direction (4) by a given spacing distance (a), comprising a main body (10) extending in an axial direction (4) with an axis of rotation (R) with at least one cutting element (12), as well as with a number of guide elements (14) for guiding the main body (10) within a guide hole (16A), wherein the guide elements (14) for the axis of rotation (R) are separated by a guide radius (r1), wherein viewed in a cross-section, the main body (10) is divided into a functional region (19) and an eccentric region (20), wherein the cutting elements (12) and the guide elements (14) are arranged distributed over the circumference of the main body (10) over an angular region (α) of less than 180°.

公开(公告)号：US09789547B2

公开(公告)日：2017-10-17

申请号：US14895852

申请日：2014-06-03

申请人： Kennametal Inc.

发明人： Michael Hacker ,  Sebastian Kunschir

IPC分类号： B23B29/02 ,  B23B29/03 ,  B23B27/00

CPC分类号： B23B29/022 ,  B23B27/002 ,  B23B29/02 ,  B23B29/03 ,  B23B2229/04 ,  B23B2229/08 ,  B23B2250/04 ,  B23B2250/16 ,  Y10T408/03 ,  Y10T408/39 ,  Y10T408/558 ,  Y10T408/5583 ,  Y10T408/5584 ,  Y10T408/5586 ,  Y10T408/76

摘要： To make it possible for bores (16) that are in line with one another to be efficiently worked by means of a boring bar (2), the boring bar has a main body (10) with an axis of rotation (R) and a number of cutting elements (12, 12A) at intervals from one another in the axial direction (4) and also guiding elements (14) for guiding the main body (10) in a guiding bore (16A). The guiding elements (14) are kept at a distance from the axis of rotation (R) equivalent to a guide radius (r1). The main body (10) is divided into a functional region (19) and an eccentric region (10), wherein the cutting elements (12, 12A) and the guiding elements (14) are arranged such that they are distributed around the main body (10) over an angular range (a) of less than 180°. Furthermore, the circumferential side (22) of the main body (10) can be passed eccentrically through a respective bore (16, 16A) of which the unworked tube radius (r2) is less than the guide radius (r1).

公开(公告)号：US20160354849A1

公开(公告)日：2016-12-08

申请号：US15171543

申请日：2016-06-02

申请人： Kennametal Inc.

发明人： Michael HACKER ,  Sebastian Kunschir ,  Armin Zimmermann ,  Xaver Spichtinger ,  Wolfgang Lang ,  Michaela Götz ,  Heinrich Manner

IPC分类号： B23D77/12 ,  B23D77/02

CPC分类号： B23D77/12 ,  B23D77/02 ,  B23D77/025 ,  B23D2277/02 ,  B23D2277/061 ,  B23D2277/245 ,  B23D2277/2464 ,  B23D2277/34 ,  B23D2277/44 ,  Y10T408/89

摘要： A reamer has a basic tool body made of hard metal (12) and a plate-like cutting insert (18) inserted into a recess (28) at the front. The cutting insert (18) is at least partially made of polycrystalline diamond, its cutting edges (20) situated axially offset relative to the cutting edges (30) on the basic tool body (12), thus engaging with the workpiece later.

摘要翻译： 铰刀具有由硬金属（12）制成的基本工具主体和插入到前部的凹部（28）中的板状切削刀片（18）。 切削刀片（18）至少部分地由多晶金刚石制成，其切削刃（20）相对于基础工具主体（12）上的切削刃（30）轴向偏移，因此随后与工件接合。

公开(公告)号：US20240139828A1

公开(公告)日：2024-05-02

申请号：US18490291

申请日：2023-10-19

申请人： Kennametal Inc.

发明人： Kay Ulbig ,  Juergen Schwaegerl ,  Matthias Zitzmann ,  Sebastian Kunschir ,  Patrick Kuhlemann ,  Horst Manfred Jäger ,  Georg Roth

IPC分类号： B23B27/22 ,  B23B27/14 ,  B33Y80/00

CPC分类号： B23B27/22 ,  B23B27/143 ,  B33Y80/00 ,  B23B2210/06

摘要： The invention relates to a drill head comprising at least one surface, with a number of structural elements, wherein the structural elements are manufactured by an additive or primary forming manufacturing method. The invention further relates to a method for manufacturing such a drill head.

公开(公告)号：US11590583B2

公开(公告)日：2023-02-28

申请号：US16648520

申请日：2018-07-26

申请人： KENNAMETAL INC.

发明人： Michael Hacker ,  Sebastian Kunschir

IPC分类号： B23B29/02 ,  B23B35/00

摘要： The invention relates to a machining tool (2) for processing a bore in a workpiece, in particular for simultaneous processing of a plurality of bores distanced from one another by a predefined distance, said machining tool having a cutting body (8) extending in the direction of a tool longitudinal axis (4) and having at least one cutting element (12) arranged circumferentially, and a guide body (10), which adjoins the cutting body (8) in the direction of the tool longitudinal axis (4), is fastened to the cutting body (8) and has at least one circumferentially arranged guide element (20). The guide body (10) is free of cutting elements (12) and the guide body (10) is designed to exert a preload force such that, during use, the at least one guide element (20) is preloaded against a bearing for the guide body (10).

公开(公告)号：US20180272434A1

公开(公告)日：2018-09-27

申请号：US15922233

申请日：2018-03-15

申请人： Kennametal Inc.

发明人： Michael Hacker ,  Sebastian Kunschir

IPC分类号： B23B29/02 ,  B23B29/03

CPC分类号： B23B29/022 ,  B23B27/002 ,  B23B29/03 ,  B23B2229/04 ,  B23B2229/08 ,  B23B2250/04 ,  B23B2250/16

摘要： The present application relates to a cutting tool (2), in particular a boring bar (2) for machining holes (16) separated from each other in an axial direction (4) by a given spacing distance (a), comprising a main body (10) extending in an axial direction (4) with an axis of rotation (R) with at least one cutting element (12), as well as with a number of guide elements (14) for guiding the main body (10) within a guide hole (16A), wherein the guide elements (14) for the axis of rotation (R) are separated by a guide radius (r1), wherein viewed in a cross-section, the main body (10) is divided into a functional region (19) and an eccentric region (20), wherein the cutting elements (12) and the guide elements (14) are arranged distributed over the circumference of the main body (10) over an angular region (α) of less than 180°.

公开(公告)号：US09895757B2

公开(公告)日：2018-02-20

申请号：US15171543

申请日：2016-06-02

申请人： Kennametal Inc.

发明人： Michael Hacker ,  Sebastian Kunschir ,  Armin Zimmermann ,  Xaver Spichtinger ,  Wolfgang Lang ,  Michaela Götz ,  Heinrich Manner

IPC分类号： B23D77/00 ,  B23D77/12 ,  B23D77/02

CPC分类号： B23D77/12 ,  B23D77/02 ,  B23D77/025 ,  B23D2277/02 ,  B23D2277/061 ,  B23D2277/245 ,  B23D2277/2464 ,  B23D2277/34 ,  B23D2277/44 ,  Y10T408/89

摘要： A reamer has a basic tool body made of hard metal (12) and a plate-like cutting insert (18) inserted into a recess (28) at the front. The cutting insert (18) is at least partially made of polycrystalline diamond, its cutting edges (20) situated axially offset relative to the cutting edges (30) on the basic tool body (12), thus engaging with the workpiece later.