公开(公告)号：US20240075543A1

公开(公告)日：2024-03-07

申请号：US17939257

申请日：2022-09-07

Applicant: Kennametal Inc.

Inventor： Alexander Kroedel ,  Santosh Boregowda ,  Iranna Shidrameshetra ,  Ravi Halasur ,  Nicholas Henry

IPC: B23C5/28 ,  B23C5/00 ,  B23C5/08

CPC classification number: B23C5/28 ,  B23C5/006 ,  B23C5/08

Abstract: The invention relates to a coolant turbine for a rotary cutting tool, a rotary cutting tool, a coolant turbine module, and a method for operating a rotary cutting tool. The coolant turbine comprises an annular turbine base body having a first front face, an opposite second front face, and a plurality of coolant passages, which are arranged so as to be distributed around a central axis of the turbine base body, said passages having a coolant inlet and a coolant outlet, each of which extends through the turbine base body at least in portions in such a way that the turbine base body can be set into rotation by a flow of coolant.

公开(公告)号：US20240051041A1

公开(公告)日：2024-02-15

申请号：US17641218

申请日：2020-09-24

Applicant: DENTSPLY SIRONA Inc. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： Andreas SCHAEFER ,  Oliver NOWARRA ,  Michael TURZER ,  Peter FORNOFF

IPC: B23C5/00 ,  A61C13/00 ,  G06K19/07

CPC classification number: B23C5/006 ,  A61C13/0004 ,  G06K19/0723 ,  A61C2204/005

Abstract: A dental tool (1) for use in a dental CNC milling/grinding machine for machining a dental restoration from a workpiece (6), the dental tool (1) has a shaft (2). The dental tool includes a miniaturized RFID tag (3) which is arranged in front of the back end (2a) of the shaft (2). A dental CNC milling/grinding machine (5) is also disclosed and has a machine compartment (5a) including one or more carriage units (5b) each adapted to exchangeably receive and drive one or more dental tools (1) for machining a dental restoration from a workpiece (6); one or more transceiver units (5c) each adapted to read and/or write the miniaturized RFID tag (3) of a dental tool (1); and a control unit adapted to control the transceiver units (5c), and the carriage units (5b) based on the information read from the miniaturized RFID tags (3).

公开(公告)号：US20230226625A1

公开(公告)日：2023-07-20

申请号：US18155802

申请日：2023-01-18

Applicant: ISCAR, LTD.

Inventor： HERBERT VOLK ,  RUDI WILLI MEPPIEL ,  MATTHIAS GUTEWORT ,  CHEN BALBES

IPC: B23C5/28 ,  B23C5/00 ,  B23C9/00

CPC classification number: B23C5/281 ,  B23C5/006 ,  B23C9/005

Abstract: A milling tool having a shank portion and a head portion extending from the shank portion. A head internal surface of the head portion is formed with a peripherally extending head coolant obstruction arrangement comprising a head ridge which extends in a rearward direction more than an adjacent head portion of the head internal surface located in a radially-inward direction more than the head ridge.

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：US11504780B2

公开(公告)日：2022-11-22

申请号：US16651189

申请日：2019-09-04

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Tangwei Zhao ,  Tomoyuki Fukuyama

IPC: B23C5/00

Abstract: The first cutting insert is attached to a first pocket. The second cutting insert is attached to a second pocket. The third cutting insert is attached to a third pocket. The first pocket has a first seat surface, a second seat surface, a third seat surface, and a first swarf discharging groove. The second pocket has a fourth seat surface, a fifth seat surface, a sixth seat surface, and a second swarf discharging groove. The third pocket has a seventh seat surface, an eighth seat surface, a ninth seat surface, and a third swarf discharging groove. In a cross section perpendicular to an axis, an angle formed between a straight line along the sixth seat surface and a tangent of the second swarf discharging groove at a boundary between the outer circumferential surface and the second swarf discharging groove is more than 90°.

公开(公告)号：US20220258251A1

公开(公告)日：2022-08-18

申请号：US17622127

申请日：2020-02-03

Applicant: AB SANDVIK COROMANT

Inventor： Peng WU ,  Martin MAGNEVALL ,  Sebastian LEVIN

IPC: B23B27/00 ,  B23B27/08 ,  B23B29/04 ,  B23C5/00 ,  B23C5/08

Abstract: A cutting tool for metal cutting includes a tool body having an insert seat and a recess formed therein. The tool body further includes vibration damping means. The vibration damping means have a cantilever member, the cantilever member being adjacent to the recess of the tool body. The cantilever member has a cantilever beam and an end mass, wherein the cantilever member extends between a fixed end and a free end. The fixed end is permanently connected to the tool body. The cantilever beam extends from the fixed end and the end mass extends from the free end.

公开(公告)号：US11285548B2

公开(公告)日：2022-03-29

申请号：US16202288

申请日：2018-11-28

Applicant: Iscar, Ltd.

Inventor： Gil Hecht ,  Adi Shapir

IPC: B23C5/10 ,  B23C5/22 ,  B23C5/00

Abstract: A single-sided three-way indexable milling insert for feed milling operations, includes a positive basic shape, a rake surface, a peripheral surface including side abutment surfaces, a base bearing surface and a screw hole connecting the rake and base bearing surfaces. The insert has a cutting edge including exactly three main cutting sub-edges and three secondary cutting sub-edges. A material volume VF of the cutting insert and a void volume VS of the insert fulfill the condition VS/VF≥0.30.

公开(公告)号：US20210291277A1

公开(公告)日：2021-09-23

申请号：US16328513

申请日：2016-08-31

Applicant: MAQ AB

Inventor： Qilin FU ,  Cornel-Mihai NICOLESCU ,  Amir RASHID

IPC: B23B27/00 ,  B23C5/00

Abstract: Rotatable assembly (10) having one end (12) adapted to be secured to a rotatable support for rotating the rotatable assembly (10) about a rotational axis (28), the rotatable assembly (10) comprising: a main body (18) having a cavity (56); a damping mass (38) arranged within the cavity (56) and movable in radial directions (30), substantially perpendicular to the rotational axis (28), relative to the main body (18); a damping structure (36) arranged to support the damping mass (38) relative to the main body (18) and arranged to damp vibrational movements of the damping mass (38) relative to the main body (18) in the radial directions (30); wherein the damping structure (36) comprises a plurality of spring elements (40); and wherein each spring element (40) has a flat appearance.

公开(公告)号：US10987743B2

公开(公告)日：2021-04-27

申请号：US16176395

申请日：2018-10-31

Applicant: Iscar, Ltd.

Inventor： Gil Hecht ,  David Ben Harouche

IPC: B23C5/22 ,  B23C5/00 ,  B23C5/08 ,  B23C5/10 ,  B23C5/28

Abstract: A slotting tool body includes a disc-like cutter portion and a shank portion projecting rearwardly therefrom. The cutter portion includes a resilient clamping portion having a peripherally disposed insert receiving slot. The shank portion includes a peripherally disposed forward shank recess that is axially adjacent the cutter portion. A radially inward portion of the insert receiving slot merges in the rearward direction with the forward shank recess. A cutting insert is releasably and resiliently clamped in the insert receiving slot to form a rotary slot cutting tool. The cutting insert includes two cutting portions that each include a long and short insert lateral extension, the long insert lateral extension being longer than the short insert lateral extension. The longest insert lateral extensions are orated on opposite sides of the cutting insert.

公开(公告)号：US10967449B2

公开(公告)日：2021-04-06

申请号：US16379118

申请日：2019-04-09

Applicant: GUEHRING KG

Inventor： Peter Haenle ,  Thomas Bischoff

IPC: B23D77/02 ,  B23C5/00 ,  B23D77/00 ,  B23C5/04 ,  B23D77/04

Abstract: The invention relates to a rotary tool (1; 101; 201) for cutting large inside diameters at the outer circumference (2) of which at least one cutting edge (4) is arranged, comprising a support structure (10; 110; 210) which indirectly or directly supports the at least one cutting edge (4), and comprising a chucking portion (24) for coupling to a tool holder, wherein the support structure (10; 110; 210) widens in an umbrella-type manner starting from a coupling portion (11) adjacent to the chucking portion (24) and is radially stiffened by a stiffening structure (12).