公开(公告)号：US12269137B2

公开(公告)日：2025-04-08

申请号：US17894800

申请日：2022-08-24

Applicant: Kennametal Inc.

Inventor： Shuangyuan Zhang ,  Christoph Gey ,  Patrick Kuhlemann ,  Ruy Frota de Souza Filho

IPC: G06N20/00 ,  B23Q17/09

Abstract: A system and method for monitoring and predicting wear of a cutting tool used for machining a workpiece is disclosed. The system includes a cutting tool having a shank and a cutting head. The system also includes a split, modular and wireless wear detection system including one or more sensors mounted to the cutting tool for providing a data signal representative of a physical condition of the system, and a data recording and data transmitting device for recording the data signal from the one or more sensors and for generating and transmitting a data signal to a processor. The processor applies a machine learning data processing technique in real time to monitor and/or predict a condition of various components and/or parameters of the system during a metal cutting operation.

公开(公告)号：US12208455B2

公开(公告)日：2025-01-28

申请号：US17347756

申请日：2021-06-15

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Xiangdong D. Fang ,  Iranna Shidrameshetra

IPC: B23B51/06 ,  B23B51/02 ,  B23C5/28

Abstract: A rotary cutting tool includes a main body, a shank portion having a rearward end, and a flute portion having a forward end with one or more flanks. One or more connecting fluid holes are in fluid communication with a central fluid hole and terminates at a flank at the forward end of the cutting tool. One or more twisted fluid holes extend through a lobe in the flute portion and terminates at a flank at the forward end of the cutting tool. A cross-sectional shape of the connecting fluid holes and the twisted fluid holes is selected to provide enhanced delivery of fluid to the cutting edge. In one aspect, the rotary cutting tool is a modular drill and the flute portion has a pocket for holding a replaceable cutting insert.

公开(公告)号：US20240307978A1

公开(公告)日：2024-09-19

申请号：US18120943

申请日：2023-03-13

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Alan J. Bookheimer ,  Austin Baer ,  Marcelo Euripedes Silva ,  Berthold Zeug ,  Michael Schuffenhauer ,  Bernhard Eckl

IPC: B23B51/00 ,  B23B27/16

CPC classification number: B23B51/0007 ,  B23B27/1611

Abstract: Rotary cutting tools are disclosed comprising shanks and replaceable cutting inserts are provided. The shank comprises a pocket which receives an interchangeable cutting insert. The pocket includes a floor with a central pin-receiving hole, opposing pocket centering walls, and torque transmitting pocket drive walls. The cutting insert has a relatively long rear pin receivable in the central hole of the shank. A head of the cutting insert includes insert centering surfaces that contact the pocket centering walls of the shank, and insert drive surfaces that contact the torque transmitting pocket drive walls of the shank. The configurations and sizes of the shank and cutting insert features are controlled to provide improved torque transmission, rigidity and stability during operation of the rotary cutting tools.

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：US11883888B2

公开(公告)日：2024-01-30

申请号：US17359977

申请日：2021-06-28

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Marcelo Euripedes Silva ,  Nicholas J. Henry

IPC: B23B51/02

CPC classification number: B23B51/02 ,  B23B2231/0204 ,  B23B2251/02 ,  B23B2251/082 ,  B23B2251/408 ,  B23B2251/50

Abstract: A rotary cutting tool with enhanced bump-off capability is disclosed. The cutting tool includes a tool shank having a pocket. A replaceable cutting head is at least partially disposed within the pocket of the tool shank with an interference fit. A coupling pin assembly is at least partially received within a bore of the tool shank. The coupling pin assembly comprises a sleeve member and a coupling pin at least partially disposed within the sleeve member. The sleeve member includes an upper portion and a lower portion having a non-circular cross-sectional shape with a bump-off surface. An actuation screw contacts the coupling pin assembly and causes the replaceable cutting head to move relative to the tool shank. The bump-off surface of the lower portion of the sleeve member extends radially outward with respect to the coupling pin by a distance, D, thereby providing enhanced bump-off capability.

公开(公告)号：US11691205B2

公开(公告)日：2023-07-04

申请号：US17319664

申请日：2021-05-13

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Logan M. Semnisky

IPC: B23B51/00 ,  B33Y80/00 ,  B23B51/02 ,  B23C5/00

CPC classification number: B23B51/02 ,  B23B51/0003 ,  B23B2250/16 ,  B23B2251/02 ,  B23B2251/40 ,  B23B2251/50 ,  B23B2251/70 ,  B23C5/003 ,  B33Y80/00

Abstract: A rotary cutting tool includes a tool body including a chip flute portion having a plurality of helical chip flutes separated by lobes. In one aspect, a tunable vibration absorber assembly is disposed within a cavity formed in the chip flute portion. In another aspect, the tunable vibration absorber assembly is disposed within a cavity of a replaceable cutting head. In each aspect, the tunable vibration absorber assembly includes at least two tunable absorber masses, a resilient material between the one or more absorber masses and the cavity, and one or more connecting members for preventing relative angular displacement of the one or more tunable absorber masses. The at least two tunable absorber masses are suspended only by the resilient material, thereby enabling the tunable vibration absorber assembly to be tuned to a desired frequency for suppressing torsional vibration of the rotary cutting tool during a cutting operation.

公开(公告)号：US20230182216A1

公开(公告)日：2023-06-15

申请号：US18106160

申请日：2023-02-06

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Logan M. Semnisky

IPC: B23B51/02 ,  B23B51/00

CPC classification number: B23B51/02 ,  B23B51/0003 ,  B23B2250/16 ,  B23B2251/70 ,  B23B2251/40 ,  B33Y80/00

Abstract: A rotary cutting tool includes a tool body including a chip flute portion having a plurality of helical chip flutes separated by lobes. In one aspect, a tunable vibration absorber assembly is disposed within a cavity formed in the chip flute portion. In another aspect, the tunable vibration absorber assembly is disposed within a cavity of a replaceable cutting head. In each aspect, the tunable vibration absorber assembly includes at least two one or more tunable absorber masses, a resilient material between the one or more absorber masses and the cavity, and one or more connecting members for preventing relative angular displacement of the one or more tunable absorber masses. The at least two one or more tunable absorber masses are suspended only by the resilient material, thereby enabling the tunable vibration absorber assembly to be tuned to a desired frequency for suppressing torsional vibration of the rotary cutting tool during a cutting operation.

公开(公告)号：US11471952B2

公开(公告)日：2022-10-18

申请号：US16824537

申请日：2020-03-19

Applicant: Kennametal Inc.

Inventor： Marcelo Euripedes Silva ,  Ruy Frota de Souza Filho

IPC: B23B51/02 ,  B23B27/16 ,  B23B51/12

Abstract: A rotary cutting tool includes a tool shank, a replaceable cutting head mounted on the tool shank, a coupling pin, and an actuation member. In one embodiment, the coupling pin has a cylindrical portion with a reduced-diameter portion defined by a pair of angled side walls separated by a bottom surface for cooperating with a non-threaded portion at one end of the actuation member. In another embodiment, the coupling pin has a cylindrical portion with a notch with a pair of side walls for cooperating with a frustoconical member at one end of the actuation member. When assembled, a pair of V-shaped contact surfaces on the cutting head engage a pair of oppositely facing V-shaped contact surfaces on the tool shank to provide stability against the momentum created by cutting forces in two different directions and securely hold the cutting head in place during machining operations.

公开(公告)号：US20210268591A1

公开(公告)日：2021-09-02

申请号：US17319664

申请日：2021-05-13

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Logan M. Semnisky

IPC: B23B51/02

Abstract: A rotary cutting tool includes a tool body including a chip flute portion having a plurality of helical chip flutes separated by lobes. In one aspect, a tunable vibration absorber assembly is disposed within a cavity formed in the chip flute portion. In another aspect, the tunable vibration absorber assembly is disposed within a cavity of a replaceable cutting head. In each aspect, the tunable vibration absorber assembly includes at least two tunable absorber masses, a resilient material between the one or more absorber masses and the cavity, and one or more connecting members for preventing relative angular displacement of the one or more tunable absorber masses. The at least two tunable absorber masses are suspended only by the resilient material, thereby enabling the tunable vibration absorber assembly to be tuned to a desired frequency for suppressing torsional vibration of the rotary cutting tool during a cutting operation.

公开(公告)号：US20210162516A1

公开(公告)日：2021-06-03

申请号：US16700266

申请日：2019-12-02

Applicant: Kennametal Inc.

Inventor： Lance David Brunetto ,  Ruy Frota de Souza Filho ,  Ronald Louis Dudzinsky

IPC: B23C1/02

Abstract: A rotary cutting tool includes a cutting head having a plurality of insert-receiving pockets for radially mounting a first type of cutting insert in a first cutting region and for tangentially mounting a second type of cutting insert in a second cutting region. The first cutting region has a first length, L1, and the second cutting region has a second length, L2, that is greater in magnitude than the first length, L1. The two types of cutting inserts provides a hybrid cutting insert design in which the first type of cutting inserts provide an increased chip gash volume for effective chip evacuation, and the second type of cutting inserts provide an increased core diameter to minimize deflection of the rotary cutting tool.