Patents Assigned to Iscar, Ltd.
  • Patent number: 11618091
    Abstract: A rotary cutting tool includes a tool holder. The tool holder has holder body and an adjustment sleeve circumferentially disposed thereabout. The adjustment sleeve has an at least one sleeve adjustment groove which decreases in distance from a sleeve central axis in a rotational sleeve direction. The tool holder further has a plurality of insert cartridges, each having an insert pocket and at least one cartridge pin. At least one pin is located in a respective sleeve adjustment groove. The tool holder is adjustable between inner and outer adjusted positions by rotating the adjustment sleeve in the rotational sleeve direction. In the outer adjusted position, the insert cartridges are displaced in an outwards adjusted direction so that the insert pockets are radially outwards compared to the inner adjustment position.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: April 4, 2023
    Assignee: Iscar, Ltd.
    Inventors: Nir Cohen, Mark Ashqar
  • Patent number: 11612943
    Abstract: An insert adaptor is configured for providing secure clamping of an insert in an insert pocket. The insert adaptor is configured to be located between an insert and an insert pocket and includes at least one magnetic surface configured for applying a magnetic attraction force to the insert pocket or a shim.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 28, 2023
    Assignee: Iscar, Ltd.
    Inventor: Rafi Raboach
  • Publication number: 20230092953
    Abstract: A tool holder having a holder body, an opening of the holder body having opposing upper and lower jaws respectively defining upper and lower pocket surfaces of an insert receiving pocket, and a resilience slot extending away from the insert receiving pocket. A first plane intersects the upper and lower pocket surfaces, and an actuating member extends from the upper jaw along a first axis in a downward direction and traverses the resilience slot. The lower jaw includes an access bore, and a locking member occupies the access bore and engages a locking portion of the actuating member. The upper jaw has a top jaw surface facing in an upward direction, and the first axis intersects the top jaw surface. A cutting tool is configured with the tool holder and a cutting insert removably secured in the insert receiving pocket.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 23, 2023
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Publication number: 20230087684
    Abstract: A cutting tool assembly having a longitudinal axis establishing upward and downward directions, includes a Y-axis parting adaptor mounted onto a holder. The parting adaptor has an insert pocket including a base jaw configured to support a cutting insert. The holder has a holder head portion and a shank portion. The holder head portion has an adaptor pocket in which the parting adaptor is mounted. If the holder shank cross-sectional shape is square or rectangular the forwardmost cutting edge is directly above the forwardmost holder shank surface, and if the holder shank cross-sectional shape is round and a centrally extending holder shank axis extends to the forwardmost cutting edge.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Applicant: ISCAR, LTD.
    Inventor: DOLEV BEST
  • Publication number: 20230076841
    Abstract: An elongated tool holder includes a mass housing portion having a housing peripheral surface, an outer sleeve having a sleeve hole wall surface, and an anti-vibration arrangement. An elongated groove is formed in one of the housing peripheral surface and the sleeve hole wall surface. In an assembled state of the tool holder, the groove, which is located at a common interface of the housing peripheral surface and the sleeve hole wall surface, forms a groove coolant channel. The groove coolant channel forms part of an overall tool holder coolant channel which is spaced apart from the anti-vibration arrangement, and thus isolates the coolant from the anti-vibration arrangement. A cutting tool incorporates the tool holder.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 9, 2023
    Applicant: ISCAR, LTD.
    Inventor: JONY SAFFOURI
  • Publication number: 20230070392
    Abstract: An elongated tool holder has a tool anti-vibration component constituting a mass housing portion provided with an enclosed interior cavity, and an anti-vibration arrangement occupying the enclosed interior cavity. The anti-vibration arrangement includes two vibration absorbing masses disposed within the holder cavity and elastically suspended therein by at least three resilient suspension members contacting an inwardly facing cavity wall surface. The two vibration absorbing masses are made from different materials and have different lengths. A cutting tool is provided with the tool holder.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 9, 2023
    Applicant: ISCAR, LTD.
    Inventors: DANIEL HEN, RAFI RABOUH, JONY SAFFOURI
  • Patent number: 11597019
    Abstract: A slotting tool body includes a disc-like cutter portion including opposing forward and rearward cutter portion side surfaces and a cutter portion peripheral surface extending therebetween and a shank portion projecting rearwardly from the rearward cutter portion side surface. The cutter portion includes a number N of angularly spaced apart clamping portions, each having a peripherally disposed insert receiving slot. The cutter portion further includes a flexibility recess recessed in the forward cutter portion side surface and extending to each of the insert receiving slots. A cutting insert is releasably and resiliently clamped in each insert receiving slot to form a rotary slot cutting tool.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: March 7, 2023
    Assignee: Iscar, Ltd.
    Inventor: Shimon Athad
  • Patent number: 11590590
    Abstract: A metal slitter body including a cylindrical body portion and cutting body portions extending outwardly from and integrally formed with the cylindrical body portion. The cutting body portions each include an insert pocket having an insert receiving slot, first and second clamping jaws and a slot end. The slitter body further including a reinforcement portion extending from the cylindrical body in an outward radial direction further than each slot end.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: February 28, 2023
    Assignee: Iscar, Ltd.
    Inventor: Shimon Athad
  • Patent number: 11583942
    Abstract: In a cutting tool rotatable about a tool axis, a reversible cutting insert is removably secured in a tool body. The cutting insert has opposing top and bottom end surfaces interconnected by a peripheral surface, and a median plane located therebetween. The peripheral surface includes four side surfaces alternating with four corner surfaces, the side and corner surfaces intersecting the top surface to form top major cutting edges and top corner cutting edges, respectively. Each side surface has a median surface and a top major relief surface. Each top major relief surface forms an acute internal top major relief angle with the median plane, and the median plane intersects the four median surfaces to define an imaginary median square. In a top end view of the cutting insert, the four top major cutting edges define an imaginary top major square rotationally offset from the imaginary median square.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: February 21, 2023
    Assignee: Iscar, Ltd.
    Inventors: Alexander Passov, Alexander Bronshteyn
  • Patent number: 11577323
    Abstract: A tool head has a longitudinal axis, forward and rearward ends, and top, bottom and peripheral surfaces. The peripheral surface has first and second side walls provided with respective first and second serrated portions, each of the first and second side walls being divided into spaced apart top and bottom side wall portions. The peripheral surface also has a stopper wall which faces in the rearward direction, extends transversely to the second side wall and is provided with a stopper serrated portion. A rear wall formed at the rearward end and connects the first and second side walls. The tool head also includes an insert retaining portion proximate the forward end, and a coupling portion which extends in the direction of the rearward end and includes vertically spaced apart top and bottom coupling arms separated by a coupling recess opening out to the rear wall.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: February 14, 2023
    Assignee: Iscar, Ltd.
    Inventors: Rafi Rabouh, Roman Fortfel, Grigori Neiman, Daniel Hen
  • Patent number: 11565327
    Abstract: An indexable parting blade has opposite blade first and second sides, a blade peripheral edge, a central index axis, and at least first, second and third insert pockets located along the blade peripheral edge. The parting blade also has first, second and third coolant channels, each forming a coolant path from a corresponding inlet to a corresponding one of the insert pockets. Each coolant channel includes a rake outlet opening out to a rake side of its corresponding insert pocket and a relief outlet opening out to a relief side of that same insert pocket. The inlet corresponding to a given coolant channel is located further from that coolant channel's insert pocket than at least one of (a) the inlet corresponding to a different coolant channel, and (b) the central index axis.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: January 31, 2023
    Assignee: Iscar, Ltd.
    Inventors: Yonatan Ishai, David Ben Harouche
  • Patent number: 11534838
    Abstract: In a cutting tool having an indexable lay-down cutting insert with a central body portion and three circumferentially spaced apart cutting portions, the cutting insert is removably secured to an elongated holding portion of an insert holder. Each cutting portion has a cutting edge with first and second cutting end points, the cutting edge formed at the intersection of an upward facing rake surface and a radially outward facing relief surface. In a top view of the cutting insert, parallel imaginary first and second vertical planes containing the first and second cutting end points, intersect the central body portion at first and second body side points, which are located first and second cutting distances from the first and second cutting end points, respectively. Each of the first and second cutting distances is greater than twenty-five percent of the first radius of an imaginary first circle circumscribing the cutting insert.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: December 27, 2022
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 11524344
    Abstract: A cutting insert rotatable about an axis, has opposing front and rear surfaces interconnected by an insert peripheral surface, the insert peripheral surface having first and second side surfaces spaced apart by first and second land surfaces. First and second land edges extend along the first and second land surfaces, respectively. A first front edge formed at the intersection of the front surface and the first side surface includes a cutting-edge portion, and a second front edge formed at the intersection of the front surface and the second side surface is devoid of a cutting-edge portion. A cutting profile formed by rotating the cutting-edge portion about the axis is located axially forward of the second front edge. The cutting insert is releasably secured to a tool shank, the cutting insert being located between two protuberances protruding from a forward end portion of the tool shank.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: December 13, 2022
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Publication number: 20220388072
    Abstract: In a cutting tool having an indexable lay-down cutting insert with a central body portion and three circumferentially spaced apart cutting portions, the cutting insert is removably secured to an elongated holding portion of an insert holder. Each cutting portion has a cutting edge with first and second cutting end points, the cutting edge formed at the intersection of an upward facing rake surface and a radially outward facing relief surface. In a top view of the cutting insert, parallel imaginary first and second vertical planes containing the first and second cutting end points, intersect the central body portion at first and second body side points, which are located first and second cutting distances from the first and second cutting end points, respectively. Each of the first and second cutting distances is greater than twenty-five percent of the first radius of an imaginary first circle circumscribing the cutting insert.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 8, 2022
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Publication number: 20220347769
    Abstract: A slotting tool body includes a disc-like cutter portion including opposing forward and rearward cutter portion side surfaces and a cutter portion peripheral surface extending therebetween and a shank portion projecting rearwardly from the rearward cutter portion side surface. The cutter portion includes a number N of angularly spaced apart clamping portions, each having a peripherally disposed insert receiving slot. The cutter portion further includes a flexibility recess recessed in the forward cutter portion side surface and extending to each of the insert receiving slots. A cutting insert is releasably and resiliently clamped in each insert receiving slot to form a rotary slot cutting tool.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 3, 2022
    Applicant: ISCAR, LTD.
    Inventor: SHIMON ATHAD
  • Patent number: 11484948
    Abstract: An indexable cutting insert has a central mounting portion and two cutting portions. The central mounting portion has opposing upper and lower surfaces. The lower surface has two abutment elements associated therewith, each abutment element having two diverging abutment surfaces forming two abutment angles. The two cutting portions extend away from the central mounting portion, have distal cutting edges, and are entirely located in diagonally opposite imaginary quadrants of four quadrants defined by two mutually perpendicular quadrant planes. Two abutment bisector planes bisecting the two abutment angles and one of the quadrant planes are parallel or coincident. In a top view, the two cutting portions extend away from the central mounting portion in opposite directions. Two cutting bisector lines parallel to the two directions and bisecting the two cutting edges are mutually offset. A cutting tool has an insert holder and the cutting insert removably retained therein.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: November 1, 2022
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Publication number: 20220339713
    Abstract: A cutting head rotatable about a central axis, includes a tip portion and an intermediate portion. The tip portion has an axially forwardmost tip point contained in the central axis and at least two axially forward-facing front surfaces, each front surface having a radially extending cutting edge. The intermediate portion has at least two head lands circumferentially alternating with at least two chip evacuation passages, each head land having a leading edge extending axially rearwardly from the tip portion. The cutting edges are contained in an imaginary annular ring surface, and a first imaginary radial plane containing the central axis intersects the imaginary annular ring surface to form two imaginary radial cutting profiles. Each imaginary radial cutting profile has consecutively radially outward extending first, second, and third cutting profile portions, and the second cutting profile portion includes first and second concave sub-portions spaced apart by a first convex sub-portion.
    Type: Application
    Filed: February 22, 2022
    Publication date: October 27, 2022
    Applicant: ISCAR, LTD.
    Inventors: SHIM'ON SHITRIT, ANATOLY YANOVSKI
  • Patent number: 11471953
    Abstract: A cutting tool includes a two-way indexable cutting insert clamped in a transversely oriented insert receiving pocket of an insert holder. The insert holder includes a forwardly located insert mounting portion that includes upper and lower jaws which together define the insert receiving pocket having a pocket front opening. The lower jaw includes a pocket lower clamping surface. The upper jaw includes a pocket upper clamping surface which faces mutually towards the pocket lower clamping surface and a pocket stopper surface facing generally towards the pocket front opening. The pocket stopper surface is closer to the pocket lower clamping surface and further from the pocket front opening, than the pocket upper clamping surface. The pocket stopper surface is further from the pocket rear opening than the pocket lower clamping surface.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: October 18, 2022
    Assignee: Iscar, Ltd.
    Inventor: Shimon Athad
  • Publication number: 20220314337
    Abstract: A tool holder includes a tool shank and a tool head connected to the tool shank. The tool head has a rear surface. An insert seat or a blade pocket is partially formed on both the tool head and the tool shank, and extends rearwardly of the tool head's rear surface. Adjacent to at least a portion of a shank side surface there is a reinforcement portion connecting the shank side surface and the tool head.
    Type: Application
    Filed: June 21, 2022
    Publication date: October 6, 2022
    Applicant: ISCAR, LTD.
    Inventors: GIL HECHT, DAVID BEN HAROUCHE, YAKOV KVARTOVSKY, DMITRY GAL
  • Publication number: 20220314334
    Abstract: A cutting tool includes a cutting member having a shank portion located in a clamping recess of a clamping sleeve adaptor of a holding device. The shank portion has a peripheral shank surface including a switching arrangement including two circumferentially spaced apart circumferential outer portions and a circumferential inner portion extending therebetween. The circumferential inner portion has opposite electrical conductivity to the two circumferential outer portions. The holding device has an alignment indicating unit including an electric switch including two spaced apart conductive switch members configured to be in electrically conductive communication or non-communication with each other thereby closing or opening the electric switch, so that an electric circuit established or broken, forming first and second states of the cutting tool, respectively. Switching between the first and second states is realized by rotation of the cutting member with respect to the clamping sleeve adaptor.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 6, 2022
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT