Patents Assigned to Iscar, Ltd.
  • Patent number: 11059109
    Abstract: A cutting head rotatable about a head axis, has a cap portion and a mounting protuberance joined thereto and extending axially rearwardly therefrom. The mounting protuberance has a plurality of circumferentially spaced apart torque portions axially offset from a plurality of circumferentially spaced apart clamping portions. The clamping portions have clamping surfaces circumscribed by an imaginary clamping circle with a clamping diameter. The torque portions have torque protrusions and torque cut-outs, each torque protrusion having a torque transmission surface at least partially located outside an imaginary clamping cylinder defined by the imaginary clamping circle, and each torque cut-out having a recessed surface located inside the imaginary clamping cylinder.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: July 13, 2021
    Assignee: Iscar, Ltd.
    Inventor: Shim'on Shitrit
  • Patent number: 11027342
    Abstract: A cutting insert has two opposing end surfaces interconnected by a peripheral side surface, the peripheral side surface having two major side surfaces and two minor side surfaces. Major edges are formed at the intersection of the major side surfaces and the end surfaces. Each end surface has two diagonally opposed raised corners and two diagonally opposed lowered corners with respect to a median plane, each raised corner adjoining one of the major edges at a first major point and each lowered corner adjoining one of the major edges at a third major point. In a major side view, each major edge has an associated first imaginary straight line containing its first and third major points, and an elevated edge portion located on one side of the first imaginary straight line. The cutting insert is removably secured in a rotary cutting tool.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: June 8, 2021
    Assignee: Iscar, Ltd.
    Inventor: Osama Atar
  • Patent number: 11007585
    Abstract: A single-sided three-way indexable milling insert for 90° shoulder 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 three main cutting edges which lie along an imaginary equilateral triangle. A material volume VF of the cutting insert and a void volume VS of the insert's screw hole fulfill the condition VS/VF?0.30.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 18, 2021
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Assaf Ballas
  • Patent number: 10987743
    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.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: April 27, 2021
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, David Ben Harouche
  • Patent number: 10987740
    Abstract: A cutting insert has a cutting portion corner formed at the intersection of a rake surface, a forward cutting portion surface and a relief surface. A cutting edge is formed at an intersection of the rake surface and the relief surface with a land that is located on the rake surface and that extends along, and negatively away from, the cutting edge. A chip-control arrangement is located at the rake surface and includes an elongated projection and plurality of spaced apart elongated protuberances that extend from the projection to the cutting edge, so that the land has a plurality of spaced apart bulging land portions. A non-rotary cutting tool has an insert holder having an insert pocket and the cutting insert releasably retained therein.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: April 27, 2021
    Assignee: ISCAR LTD.
    Inventors: Sergey Chistyakov, Ortal Alperson
  • Patent number: 10974328
    Abstract: A drilling insert has a central portion with a central axis, and three circumferentially spaced tip portions. Each tip portion has a first axis and two diverging first cutting edges with radially outermost cutting points defining a first circle lying on a tip plane perpendicular to the first axis and having a first cutting diameter. In a view along one of the first axes, a second circle having a second diameter circumscribes the drilling insert, and the first cutting diameter is at least sixty percent of the second diameter. A cutting tool rotatable about a tool axis with a tool cutting diameter includes the drilling insert, and a second cutting insert having a second cutting edge. One of the tip portions is operative having its first axis coaxial to the tool axis, and the second cutting edge extends radially outward of the first cutting diameter.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: April 13, 2021
    Assignee: Iscar, Ltd.
    Inventor: Shim'on Shitrit
  • Patent number: 10953474
    Abstract: A cutting tool includes a cutting insert resiliently clamped in an insert holder. The insert holder has a holder longitudinal axis defining opposite forward to rearward directions, and a transversely oriented insert receiving pocket having a pocket longitudinal axis and a pocket front opening. The insert holder includes a forwardly located insert mounting portion that includes upper and lower jaws which together define the insert receiving pocket. The insert receiving pocket at the lower jaw includes a pocket lower clamping surface. The insert receiving pocket at the upper jaw includes a pocket upper clamping surface which faces mutually towards the pocket lower clamping surface. The insert receiving pocket at one of the upper and lower jaws includes a pocket stopper surface facing generally towards the pocket front opening. The upper jaw includes an outer flexibility groove recessed in the holder peripheral surface.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: March 23, 2021
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, David Ben Harouche
  • Patent number: 10953471
    Abstract: An external turning tool includes an elongated tool body with opposite clamping and cutting portions which define an axial direction therebetween. The cutting portion includes a damping mechanism with an elongated damping member which defines an elongation axis. The elongation axis forms a non-zero damping member angle with the axial direction.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: March 23, 2021
    Assignee: Iscar, Ltd.
    Inventors: Meir Herman, Jony Saffouri, Meir Bar Hen
  • Patent number: 10906107
    Abstract: A single-sided four-way indexable cutting insert includes a positive basic shape, a rake surface, a peripheral surface including four side abutment surfaces, a base bearing surface and a screw hole connecting the rake and base bearing surfaces. The insert has an imaginary square frustum which defines a square base containing the cutting insert's base bearing surface, and further defines four isosceles trapezoid side surfaces respectively containing the cutting insert's four side abutment surfaces. A material volume VF of the cutting insert and a void volume VS of the insert fulfill the condition VS/VF?0.25.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: February 2, 2021
    Assignee: Iscar, Ltd.
    Inventor: Assaf Ballas
  • Patent number: 10906106
    Abstract: A turning tool adaptor includes opposite first and second side surfaces and a peripheral surface which extends therebetween. The turning tool adaptor further includes a cutting portion with an insert retaining portion and a clamping portion which extends from the cutting portion. The clamping portion includes a protrusion which extends transversely from the first side surface. The protrusion includes a main abutment surface and spaced apart first and second adaptor clamping bores which open out to the second side surface and also to the main abutment surface. The turning tool adaptor has first, second and third abutment surfaces which are located between the top and bottom surfaces in a side view perpendicular to one of the side surfaces.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: February 2, 2021
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Asaf Malka
  • Patent number: 10857603
    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: March 19, 2019
    Date of Patent: December 8, 2020
    Assignee: Iscar, Ltd.
    Inventor: Shimon Athad
  • Publication number: 20200361001
    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: Application
    Filed: May 14, 2019
    Publication date: November 19, 2020
    Applicant: Iscar, Ltd.
    Inventor: GIL HECHT
  • Patent number: 10828703
    Abstract: A tool coupling includes a first member, having a male coupling portion extending along a first axis, and a second member, having a female coupling portion extending along a second axis. The male coupling portion has front and rear drive members defining male front and rear footprints in respective first and second transverse mating planes. The female coupling portion has front and rear drive passages defining front and rear peripheral profiles in respective first and second transverse passage planes. The front and rear drive members respectively occupy the front and rear drive passages, and at least one of the front and rear drive members prevents rotation of the second member about the second axis. On imaginary rotation of the front peripheral profile by any angle about the second axis and axial projection thereof, the front peripheral profile overlaps (i.e., at least partially crosses) the rear footprint.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 10, 2020
    Assignee: Iscar, Ltd.
    Inventors: Basel Abd El Haq, Tsahi Ashkenazi, Alexey Galianov
  • Patent number: 10814400
    Abstract: A cutting tool assembly includes a parting blade and a blade holder for holding same. The cutting tool assembly is configured for conveying pressurized coolant via the holder to a cutting portion of the parting blade. The blade holder includes a deceleration chamber configured for reducing the impact of the pressurized coolant against the parting blade.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 27, 2020
    Assignee: Iscar, Ltd.
    Inventors: Asaf Malka, Dmitry Gal, Shimon Athad
  • Publication number: 20200298325
    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: Application
    Filed: March 19, 2019
    Publication date: September 24, 2020
    Applicant: Iscar, Ltd.
    Inventor: Shimon Athad
  • Patent number: 10744571
    Abstract: A rotating tool includes a circumferential surface formed with a tool anchorage arrangement. The tool anchorage arrangement follows a stepped path. The tool anchorage arrangement includes an entry recess and, subsequent thereto, a radial recess and, subsequent thereto, an axial recess. Additional radial and axial recesses may be alternated to increase the number of steps, thereby extending the length of the stepped path.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: August 18, 2020
    Assignee: Iscar, Ltd.
    Inventors: Raz Fisher, Hanoch Guy
  • Publication number: 20200254540
    Abstract: A cutting body rotatable about a tool axis has an insert receiving pocket with a seat surface at an axial forward end thereof. The seat surface has a plurality of abutment elements, including an axial abutment element having an axially forward facing abutment surface and at least one radial abutment element. In a top view of the insert receiving pocket, the axially forward facing abutment surface forms an external acute clamping angle with a radially outward facing pocket wall. A rotary cutting tool includes the cutting body, and a cutting insert removably secured in the insert receiving pocket, having a base surface in contact with the seat surface. The at least one radial abutment element occupies or is occupied by at least one radial abutting element of the base surface, and the axially forward facing abutment surface is in contact with an axial abutting surface of the base surface.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 13, 2020
    Applicant: Iscar, Ltd.
    Inventor: SAGI ELKAYAM
  • Patent number: 10730115
    Abstract: A cutting tool fastener having a rotation axis and configured to secure together, and establish a fluid path between, two cutting tool members, while also accommodating angular and pivotal displacement between the two. The fastener comprising a head with at least one head opening for emitting fluid, and a body which extends from the head and has a body opening for receiving fluid to be emitted via the head opening. The head has a spherical head abutment surface with a bottom spherical seal surface zone. At least a portion of the spherical head abutment surface faces the body, and the head opening opens out to the spherical head abutment surface. The bottom spherical seal surface zone is axially located between the body and the head opening.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: August 4, 2020
    Assignee: Iscar, Ltd.
    Inventors: Leonid Amstibovitsky, Grigori Neiman
  • Patent number: 10710174
    Abstract: A slitting cutter having a disk-shaped cutter body with a plurality of circumferentially spaced insert receiving portions and a plurality of cutting inserts retained therein. Each insert receiving portion has first and second clamping jaws spaced apart by an insert receiving slot, the first clamping jaw resiliently displaceable and having a resilient axis of rotation. The number of cutting inserts resiliently clamped in the slitting cutter is an inner cutting diameter defined by the plurality of resilient axes of rotation multiplied by a spacing factor of between 0.15 and 0.30. A tool key having first and second key prongs is used in combination with the slitting cutter. The second key prong has a thrust surface with a concave profile. In a partially assembled position of the slitting cutter the thrust surface contacts at least one of two spaced apart first and second corner surfaces of the respective cutting insert.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: July 14, 2020
    Assignee: Iscar, Ltd.
    Inventor: Shimon Athad
  • Patent number: 10710167
    Abstract: A turning insert for machining both Inconel and Titanium workpieces. The insert includes a chip forming arrangement including only a single v-shaped groove. The groove includes a specific depth and position to improve machining of both Inconel and Titanium work pieces.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: July 14, 2020
    Assignee: Iscar, Ltd.
    Inventor: Meir Bar Hen