公开(公告)号：US20180126467A1

公开(公告)日：2018-05-10

申请号：US15645221

申请日：2017-07-10

Applicant: Kennametal Inc.

Inventor： Christoph Gey ,  Jürgen Schwägerl

IPC: B23B51/06 ,  B23B51/02 ,  B23B27/10 ,  B23B27/14 ,  B23C5/28 ,  B23P15/28

CPC classification number: B23B51/06 ,  B23B27/10 ,  B23B27/14 ,  B23B51/02 ,  B23B2251/02 ,  B23C5/28 ,  B23C2210/02 ,  B23C2210/03 ,  B23P15/28 ,  Y10T407/1904 ,  Y10T408/455 ,  Y10T408/78 ,  Y10T408/89

Abstract: A tool head for use with a modular shank tool includes at least two preforms. Each preform of the at least two preforms is made separately from the other preform of the at least two preforms from granular materials and then put together and jointly compressed and integrally bonded.

公开(公告)号：US20170113281A1

公开(公告)日：2017-04-27

申请号：US15331615

申请日：2016-10-21

Applicant: Kennametal Inc.

Inventor： Jürgen Schwägerl ,  Berthold Heinrich Zeug ,  Horst Manfred Jäger

IPC: B23B51/02

CPC classification number: B23B51/02 ,  B23B2240/04 ,  B23B2251/02 ,  Y10T408/9097 ,  Y10T408/9098 ,  Y10T408/90993

Abstract: A rotary tool comprising two coupling parts, namely a carrier and a cutting head in a front end surface. The carrier comprises a pin receptacle into which a coupling pin of the cutting head is inserted. In order to prevent pulling-out in an axial direction, stop surfaces are provided on the pin receptacle and on the coupling pin, said stop surfaces being effective in an axial direction. For a design that is as simple as possible, in particular with regard to grinding, each stop surface of the coupling pin is adjoined by a lateral surface which freely tapers off in the direction toward the end surface as viewed in the axial direction. In particular, the lateral surface constitutes a torque surface.

公开(公告)号：US20170028480A1

公开(公告)日：2017-02-02

申请号：US15302443

申请日：2015-03-24

Applicant: Kennametal Inc.

Inventor： Jürgen Schwägerl ,  Berthold Heinrich Zeug ,  Horst Manfred Jäger ,  Herbert Rudolf Kauper ,  Julia Tempelmeier ,  Tim Guter

IPC: B23B51/02 ,  B23B51/06

CPC classification number: B23B51/02 ,  B23B51/06 ,  B23B2240/04 ,  B23B2240/32 ,  B23B2250/12 ,  B23B2251/02

Abstract: The rotary tool (2) is in particular designed as a modular drill and extends in an axial direction (4) along an axis of rotation (6). It comprises two coupling parts, namely a carrier (10) and a cutting head (12) that is attached to the carrier (10) so as to be exchangeable. A pin receiving means (20) is provided on the carrier (10), into which pin receiving means a coupling pin (40) of the cutting head (12) is introduced in a clamping manner and so as to be reversibly exchangeable. The pin receiving means (20) and the coupling pin (40) have torque sections (30a,b) and clamping sections (32a,b) that correspond to one another. In order to permit simple production, these clamping and torque sections are oriented parallel to the axis of rotation (6). In addition, in order to prevent pulling-out in an axial direction, stop surfaces (38a,b) are provided on the pin receiving means (20) and on the coupling pin (40), said stop surfaces being effective in an axial direction (4) and corresponding to one another. These stop surfaces preferably extend horizontally and therefore perpendicular to the axis of rotation (6).

Abstract translation: 旋转工具（2）特别地被设计为模块式钻机，并且沿着旋转轴线（6）在轴向方向（4）上延伸。 它包括两个联接部分，即一个载体（10）和一个连接到载体（10）上以便可更换的切割头（12）。 一个销接收装置（20）设置在所述托架（10）上，所述销接收装置以切割头（12）的联接销（40）以夹紧方式被引入并可逆地更换。 销接收装置（20）和联接销（40）具有彼此对应的扭矩部分（30a，b）和夹紧部分（32a，b）。 为了允许简单的生产，这些夹紧和扭矩部分平行于旋转轴线（6）定向。 此外，为了防止在轴向上的拉出，在销接收装置（20）和连接销（40）上设置止动面（38a，b），所述止动面在轴向上有效 （4）并相互对应。 这些止动表面优选地水平延伸，因此垂直于旋转轴线（6）。

公开(公告)号：US20250048681A1

公开(公告)日：2025-02-06

申请号：US18661851

申请日：2024-05-13

Applicant: Kennametal Inc.

Inventor： Tim Guter ,  Jürgen Schwägerl

IPC: H01L29/78 ,  H01L21/467 ,  H01L29/08 ,  H01L29/24 ,  H01L29/40 ,  H01L29/417 ,  H01L29/51 ,  H01L29/66

Abstract: A method for producing a cutting tool, in particular a drill bit, is specified wherein the cutting tool has a front end (F) at the front and a rear end (R) toward the rear, wherein a tool tip is formed on the front end (F), a point thinning is ground at the tool tip with a grinding tool, the point thinning being ground to be narrower toward the front than toward the rear. The point thinning is ground with a constant point thinning angle (AW). Furthermore, a corresponding cutting tool is specified.

公开(公告)号：US20250018480A1

公开(公告)日：2025-01-16

申请号：US18221049

申请日：2023-07-12

Applicant: KENNAMETAL INC.

Inventor： Herbert Rudolf Kauper ,  Jürgen Schwägerl ,  Christian Strauchmann

IPC: B23B51/02

Abstract: A rotary tool (2) is provided, comprising: a main blade (4), a chip flute (6), a lateral surface (8), a flank (10) trailing the main blade (4) and extending from the main blade (4) up to the lateral surface (8) and to the chip flute (6), wherein the flank (10) comprises a kink (12) and is thus concave in configuration, wherein the kink (12) extends from the lateral surface (8) up to the chip flute (6) and thus divides the flank (10) into a leading partial surface (14) and a trailing partial surface (16). The invention further relates to a method for manufacturing such a rotary tool (2).

公开(公告)号：US11707791B2

公开(公告)日：2023-07-25

申请号：US16987683

申请日：2020-08-07

Applicant: Kennametal Inc.

Inventor： Herbert Rudolf Kauper ,  Christian Strauchmann ,  Jürgen Schwägerl

IPC: B23B51/02

CPC classification number: B23B51/02 ,  B23B2251/122 ,  B23B2251/14 ,  B23B2251/201 ,  B23B2251/44 ,  B23B2251/446

Abstract: The invention relates to a drill comprising a body which extends along a longitudinal axis (L) from a rear side (B) to a front side (F), wherein the body comprises a main cutting edge on the front side (F), wherein the body comprises at least one guide bevel which extends in axial direction (A) and toward the front side (F), wherein, toward the front side (F), the guide bevel has an end section which is tapered. The invention further relates to a method for producing such a drill.

公开(公告)号：US10207336B2

公开(公告)日：2019-02-19

申请号：US15331615

申请日：2016-10-21

Applicant: Kennametal Inc.

Inventor： Jürgen Schwägerl ,  Berthold Heinrich Zeug ,  Horst Manfred Jäger

IPC: B23B51/02

Abstract: A rotary tool comprising two coupling parts, namely a carrier and a cutting head in a front end surface. The carrier comprises a pin receptacle into which a coupling pin of the cutting head is inserted. In order to prevent pulling-out in an axial direction, stop surfaces are provided on the pin receptacle and on the coupling pin, said stop surfaces being effective in an axial direction. For a design that is as simple as possible, in particular with regard to grinding, each stop surface of the coupling pin is adjoined by a lateral surface which freely tapers off in the direction toward the end surface as viewed in the axial direction. In particular, the lateral surface constitutes a torque surface.

公开(公告)号：US20170113282A1

公开(公告)日：2017-04-27

申请号：US15331633

申请日：2016-10-21

Applicant: Kennametal Inc.

Inventor： Berthold Heinrich Zeug ,  Jürgen Schwägerl ,  Horst Manfred Jäger

IPC: B23B51/02 ,  B23C5/10

Abstract: A tool coupling used for a clamping connection between two coupling parts, in particular between a cutting head and a carrier of a rotary tool, in particular of a drill. The coupling parts comprise clamping sections, which respectively correspond to one another and which can be clamped against each other by turning counter to a predefined direction of rotation about an axis of rotation so that a press fit is produced. In order to produce a high clamping force and at the same time allow for a simple installation via screwing in, each clamping section comprises several successive clamping surfaces which—with respect to a cross section viewed orthogonally to the axial direction—respectively travel along a circular arc, wherein the diameter increases for clamping surfaces succeeding one another in the direction of rotation.

公开(公告)号：US20240033832A1

公开(公告)日：2024-02-01

申请号：US18221527

申请日：2023-07-13

Applicant: KENNAMETAL INC.

Inventor： Patrick Kuhlemann ,  Jürgen Schwägerl

IPC: B23B51/00

CPC classification number: B23B51/00 ,  B23B2251/40 ,  B23B2251/18

Abstract: The invention relates to a rotary tool (2), comprising: a main blade (4), a chip flute (6), a lateral surface (8), and a flank (10) trailing after the main blade (4), wherein the flank (10) first drops off proceeding from the main blade (4) and then rises again, such that a sink (12) is formed, to which a ridge (14) adjoins, which reaches up to the lateral surface (8) and the chip flute (6). The invention further relates to a method for manufacturing a rotary tool (2).

公开(公告)号：US11858053B2

公开(公告)日：2024-01-02

申请号：US17031050

申请日：2020-09-24

Applicant: Kennametal Inc.

Inventor： Christian Strauchmann ,  Jürgen Schwägerl ,  Herbert Rudolf Kauper

IPC: B23B51/02

CPC classification number: B23B51/02 ,  B23B2251/04 ,  B23B2251/40 ,  B23B2260/0725

Abstract: Cutting tool for the rotary machining of workpieces, in particular a twist drill, with a cutting tip which has at least one main cutting edge and at least one free surface (24), wherein a flank face adjoins the main cutting edge radially to the outside, and wherein a flank angle of the flank face increases in a radially outward direction.