公开(公告)号：US20180154472A1

公开(公告)日：2018-06-07

申请号：US15852703

申请日：2017-12-22

Applicant: Kennametal Inc.

Inventor： Michael Hacker

IPC: B23D77/00

Abstract: In order to achieve as highly accurate an alignment of the frictional tool as possible and therefore as high a drilled hole quality as possible during the precision machining of a drilled hole, the cutting edges of the frictional tool are divided into two cutting groups, the cutting edges of which are spaced apart with respect to one another in each case by an axial spacing from one another. Here, the axial spacing is selected in such a way that, at a predefined first, slower feed speed, merely the cutting edges of the first cutting edge group are in engagement with the workpiece and, at a higher, predefined second feed speed, all cutting edges are in engagement with the workpiece.

公开(公告)号：US20170136562A1

公开(公告)日：2017-05-18

申请号：US15349094

申请日：2016-11-11

Applicant: Kennametal Inc.

Inventor： Michael Hacker ,  Marcus Paul ,  Karl Wendt

IPC: B23D77/00 ,  C23C14/06 ,  C23C14/24 ,  B23P15/46 ,  B24B3/60

CPC classification number: B23D77/00 ,  B23D2277/2414 ,  B23P15/46 ,  B24B3/60 ,  C23C14/0641 ,  C23C14/24

Abstract: A cutting tool (2) is specified with a cutting region (4) that comprises a substrate (12) onto which a coating (10) is applied, which coating (10) is subsequently processed, whereby a sharp cutting edge (8) is formed. Furthermore, a corresponding method for the manufacture of the cutting tool (2) is specified. By means of the sharpening of the cutting edge (8) after the coating rather than before, a particularly sharp cutting edge (8) is formed, whereby the precision of the cutting tool (2) as well as its service life is improved.

公开(公告)号：US10807176B2

公开(公告)日：2020-10-20

申请号：US15852703

申请日：2017-12-22

Applicant: Kennametal Inc.

Inventor： Michael Hacker

IPC: B23D77/00

Abstract: In order to achieve as highly accurate an alignment of the reamer as possible and therefore as high a drilled hole quality as possible during the precision machining of a drilled hole, the cutting edges of the reamer are divided into two cutting groups, the cutting edges of which are spaced apart with respect to one another in each case by an axial spacing from one another. Here, the axial spacing is selected in such a way that, at a predefined first, slower feed speed, merely the cutting edges of the first cutting edge group are in engagement with the workpiece and, at a higher, predefined second feed speed, all cutting edges are in engagement with the workpiece.

公开(公告)号：US10160050B2

公开(公告)日：2018-12-25

申请号：US14711458

申请日：2015-05-13

Applicant: KENNAMETAL, INC.

Inventor： Michael Hacker

IPC: B23D77/00 ,  B23C5/10 ,  B23B31/00

Abstract: The invention relates to a tool head for a rotary tool. The tool head extends along, and rotates about, a rotational axis in a rotational direction during operation. The tool head is designed for replaceable fastening on a carrier shank of the rotary tool and comprises on the back thereof a coupling surface comprising a first serration having a plurality of ribs running parallel to one another and grooves running parallel to one another. The first serration comprises at least two part-serrations oriented toward one another in the rotational direction at an angle. Each part-serration having a plurality of ribs and grooves running parallel, for centering the tool head relative to the carrier shank. The invention furthermore relates to a rotary tool having such a tool head.

公开(公告)号：US10131007B2

公开(公告)日：2018-11-20

申请号：US15349094

申请日：2016-11-11

Applicant: Kennametal Inc.

Inventor： Michael Hacker ,  Marcus Paul ,  Karl Wendt

IPC: B23D77/00 ,  B23P15/46 ,  B24B3/60 ,  C23C14/06 ,  C23C14/24

Abstract: A cutting tool (2) is specified with a cutting region (4) that comprises a substrate (12) onto which a coating (10) is applied, which coating (10) is subsequently processed, whereby a sharp cutting edge (8) is formed. Furthermore, a corresponding method for the manufacture of the cutting tool (2) is specified. By means of the sharpening of the cutting edge (8) after the coating rather than before, a particularly sharp cutting edge (8) is formed, whereby the precision of the cutting tool (2) as well as its service life is improved.

公开(公告)号：US20150290729A1

公开(公告)日：2015-10-15

申请号：US14440397

申请日：2013-09-27

Applicant: KENNAMETAL INC.

Inventor： Michael Hacker

IPC: B23D77/00

CPC classification number: B23D77/00 ,  B23D75/00 ,  B23D77/003 ,  B23D77/06 ,  B23D2277/00 ,  B23D2277/105 ,  B23D2277/205

Abstract: In order to achieve as highly accurate an alignment of the frictional tool as possible and therefore as high a drilled hole quality as possible during the precision machining of a drilled hole, the cutting edges of the frictional tool are divided into two cutting groups, the cutting edges of which are spaced apart with respect to one another in each case by an axial spacing from one another. Here, the axial spacing is selected in such a way that, at a predefined first, slower feed speed, merely the cutting edges of the first cutting edge group are in engagement with the workpiece and, at a higher, predefined second feed speed, all cutting edges are in engagement with the workpiece.

Abstract translation: 为了尽可能高精度地对准摩擦工具，因此在钻孔的精密加工期间尽可能高的钻孔质量，摩擦工具的切削刃被分成两个切割组 它们的边缘在每种情况下彼此间隔开彼此间隔开。 这里，以这样的方式选择轴向间隔，使得在预定的第一较慢进给速度下，仅第一切割边缘组的切割边缘与工件接合，并且以更高的预定义的第二进给速度，全部 切削刃与工件接合。

公开(公告)号：US11998995B2

公开(公告)日：2024-06-04

申请号：US17696975

申请日：2022-03-17

Applicant: Kennametal Inc.

Inventor： Marcelo Euripedes da Silva ,  Ruy Frota de Souza Filho ,  Michael Hacker ,  Horst Jaeger ,  Eduard Ach ,  Norbert Baumer

IPC: B23B29/034

CPC classification number: B23B29/03403 ,  B23B29/03425

Abstract: A modular boring head includes a tubular main body having an internal thread with a first pitch and a pair of axially extending cantilevered members. A movable rod engages the tubular main body such that the movable rod is movable with respect to the tubular main body in an axial direction, D. The movable rod has an internal thread with a second pitch different than the first pitch. A leadscrew is disposed within the tubular main body and has a plurality of gear teeth. Rotation of the leadscrew causes the pair of axially extending cantilevered members of the tubular main body to cooperatively engage with the plurality of gear teeth of the leadscrew in such a manner so as to produce an audible and tactile click, each click being indicative of a distance the movable rod is displaced with respect to the tubular main body.

公开(公告)号：US11590583B2

公开(公告)日：2023-02-28

申请号：US16648520

申请日：2018-07-26

Applicant: KENNAMETAL INC.

Inventor： Michael Hacker ,  Sebastian Kunschir

IPC: B23B29/02 ,  B23B35/00

Abstract: 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：US20200246889A1

公开(公告)日：2020-08-06

申请号：US16268747

申请日：2019-02-06

Applicant: Kennametal Inc.

Inventor： Li Ning ,  Michael Hacker ,  Paul Brown ,  Tom Bobos ,  Bettina Wagner

IPC: B23D77/00 ,  B24B19/00

Abstract: A reamer head for a reamer includes one or more blades separated by flutes. Each flute has a front core region proximate a front end of the cutting portion, a rear portion proximate a rear end of the cutting portion and the middle core region therebetween. The front core region has a thickness, T1, the middle core region has a thickness, T2, and the rear core region has a thickness, T3. The thickness, T2, of the middle core region is greater than the thickness, T1, of the front core region and the thickness, T3, of the rear core region. A method of making the reamer head is also disclosed.

公开(公告)号：US20180272434A1

公开(公告)日：2018-09-27

申请号：US15922233

申请日：2018-03-15

Applicant: Kennametal Inc.

Inventor： Michael Hacker ,  Sebastian Kunschir

IPC: B23B29/02 ,  B23B29/03

CPC classification number: B23B29/022 ,  B23B27/002 ,  B23B29/03 ,  B23B2229/04 ,  B23B2229/08 ,  B23B2250/04 ,  B23B2250/16

Abstract: 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°.