Patents Assigned to Iscar, Ltd.
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Publication number: 20250144717Abstract: A cutting tool has an indexable cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least two cutting portions, and at least one mounting cut-out. Each cutting portion has a cutting edge formed by the intersection of rake and relief surfaces formed on the insert peripheral surface, one rake surface facing in a first rotary direction about the central axis and one rake surface facing in an opposite second rotary direction. Each mounting cut-out extends between the first and second end surfaces and has spaced apart first and second flank surfaces disposed on a cut-out peripheral surface which is separate and spaced apart from the insert peripheral surface. The first and second flank surfaces face in the first and second rotary directions, respectively.Type: ApplicationFiled: November 2, 2023Publication date: May 8, 2025Applicant: ISCAR, LTD.Inventor: GIL HECHT
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Publication number: 20250144715Abstract: A cutting tool has a cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least one cutting portion, and at least one mounting cut-out. Each cutting portion has a cutting edge and an adjacent relief surface facing in a first rotary direction about the central axis. Each mounting cut-out extends between the first and second end surfaces and has a first flank surface and an adjacent first upper slope surface. The first flank surface faces in a second rotary direction about the central axis and the first upper slope surface faces away from a median plane located midway between the first and second end surfaces. The first upper slope surface extends away from the median plane with increasing distance from the first flank surface.Type: ApplicationFiled: November 2, 2023Publication date: May 8, 2025Applicant: ISCAR, LTD.Inventor: SHIMON ATHAD
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Patent number: 12275078Abstract: A double-ended parting cutting insert. The cutting insert includes two cutting portions at opposite ends thereof which are oriented at 90° to each other. The cutting insert includes a pair of rake and support engagement grooves, the rake and support engagement grooves of each one of the pair converging in a direction away from a respective cutting portion. An insert holder includes a clamping portion having a resilient upper clamping jaw having an upper engagement ridge and a lower base jaw having a lower engagement ridge. A gap therebetween forms an insert receiving slot that has a slot opening. The upper and lower engagement ridges converge in a direction away from the slot opening. When the cutting insert is releasably attached to the insert holder, to constitute a fastened position of a cutting tool, the cutting insert is located in the insert receiving slot and resiliently clamped therein.Type: GrantFiled: May 3, 2022Date of Patent: April 15, 2025Assignee: Iscar, Ltd.Inventor: Shimon Athad
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Patent number: 12275069Abstract: A cutting tool with a coolant system having a cutting blade, a cutting insert and a blade holder. The cutting blade has a first blade bore having a first bore peripheral surface and an entry gap recessed therein. On assembling the cutting tool, a fastening element clamps the first bore peripheral surface and seals the first blade bore, releasably securing the cutting blade to the blade holder and allowing a fluid connection between the blade holder and the cutting blade.Type: GrantFiled: July 1, 2022Date of Patent: April 15, 2025Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Publication number: 20250073789Abstract: A miniature internal boring tool including two to four shank flat surfaces and two to four integrally formed teeth. The outermost points of cutting edges of the teeth define an outer cutting diameter (OD) fulfilling the condition: 2 mm<OD<9 mm.Type: ApplicationFiled: August 30, 2023Publication date: March 6, 2025Applicant: ISCAR, LTD.Inventor: ORTAL KRISPIS
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Publication number: 20250073796Abstract: A thread milling cutter (1) includes an integrally formed thread milling tool (10) having a rotational axis (S), a shank portion (24) and a forward cutting portion (34). The cutting portion (34) has at least five insert pockets (42) recessed therein with at least one insert pocket (42) being devoid of an associated support protrusion (46), allowing different insert placements for different thread pitches.Type: ApplicationFiled: September 5, 2023Publication date: March 6, 2025Applicant: ISCAR, LTD.Inventors: VITALY OREN, YOSEF COHEN, SERGEY IRLIN, DMITRI KOROL
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Publication number: 20250073785Abstract: A two-way indexable V-shaped cutting insert having first and second rake surfaces located in a front insert surface thereof. First and second relief surfaces respectively connect the first and second rake surfaces to first and second converging insert abutment surfaces, respectively. A first cutting edge is located at an intersection of the first rake surface and the first relief surface. A second cutting edge is located at an intersection of the second rake surface and the second relief surface. A first relief angle is formed between the first relief surface and the first converging insert abutment surface. A second relief angle is formed between the second relief surface and the second converging insert abutment surface. The first and second relief angles are obtuse. In a cutting tool, the two-way indexable V-shaped cutting insert is releasably secured in a tool holder by means of a fastening member.Type: ApplicationFiled: August 31, 2023Publication date: March 6, 2025Applicant: ISCAR, LTD.Inventor: GIL HECHT
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Publication number: 20250050429Abstract: 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: ApplicationFiled: October 25, 2024Publication date: February 13, 2025Applicant: ISCAR, LTD.Inventors: GIL HECHT, DAVID BEN HAROUCHE, YAKOV KVARTOVSKY, DMITRY GAL
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Publication number: 20250010382Abstract: A rotary milling tool has a tool holder and a milling head releasably attached thereto. The milling head has a head through recess opening out to the head forward and rearward surfaces. The recess includes a plurality of radially extending tooth-receiving lobes. The tool holder has a projection which includes a plurality of radially extending teeth. When assembled the teeth are located in the tooth-receiving lobes and provide centering and torque transfer capabilities.Type: ApplicationFiled: July 6, 2023Publication date: January 9, 2025Applicant: ISCAR, LTD.Inventor: MARTIN ULRICH ZETTLER
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Patent number: 12179276Abstract: A rotary cutting tool has a tool holder and a cutting portion releasably attached to the tool holder. The tool holder includes a mounting portion designed to be attached to a spindle. The rotary cutting tool also has a fluid channel and an energy harvesting arrangement which includes a turbine located in the fluid channel. The fluid channel opens out to a channel inlet opening, for the supply of fluid, located at the mounting portion and a channel outlet opening in fluid communication with the channel inlet opening.Type: GrantFiled: January 20, 2021Date of Patent: December 31, 2024Assignee: Iscar, Ltd.Inventor: Lior Beniluz
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Publication number: 20240424577Abstract: A cutting head has two radially extending cutting arms and at least one fastening recess having an opening located at least partially on one of cutting arms. Each cutting arm has a dovetail arm rear abutment surface. A tool holder has a two circumferentially spaced apart driving members. The tool holder has a pocket with two radially extending arm receiving receptacle. Each receptacle has a dovetail receptacle rear abutment surface. The tool holder has at least one through hole located in one of the driving members. When assembled, a fastening member is disposed in the through bore and engages with the fastening recess to urge each cutting arms towards a respective driving member.Type: ApplicationFiled: June 26, 2023Publication date: December 26, 2024Applicant: ISCAR, LTD.Inventor: GIL HECHT
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Patent number: 12172219Abstract: A cutting tool used for turning operations is releasably secured to a tool holder. The cutting insert includes top and bottom insert surfaces, each surface including two pairs of insert wedge surfaces. The tool holder includes an insert pocket having a pocket top surface and a pocket bottom surface. When the cutting tool is assembled, only one of the two pairs of insert wedge surfaces of the insert top surface engages the pocket top surface, and only one of the two pairs of insert wedge surfaces of the insert bottom surface engage the pocket bottom surface.Type: GrantFiled: March 16, 2022Date of Patent: December 24, 2024Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Publication number: 20240399470Abstract: A cutting head has driven surfaces and includes a head coupling pin that protrudes rearwardly from a head rear surface. The head coupling pin includes a pin recess recessed in the pin peripheral surface. A tool holder, elongated along a holder longitudinal axis, has driving members and a holder coupling hole recessed in a holder base surface. A fastening member is disposed in a holder through bore that extends from the holder base surface to a holder peripheral surface. The holder through bore is located entirely on one side of a longitudinal plane containing the holder longitudinal axis. When a cutting tool which includes the cutting head and tool holder is in a fastened position, the head coupling pin is removably retained within the holder coupling hole upon engagement with the fastening member.Type: ApplicationFiled: May 30, 2023Publication date: December 5, 2024Applicant: ISCAR, LTD.Inventor: SHIM’ON SHITRIT
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Publication number: 20240390991Abstract: A cutting head rotatable about a head axis has a pair of first cutting arms circumferentially alternating with a pair of second cutting arms. Each first cutting arm has a radially extending first cutting edge, which includes a first radially outer and a first radially inner cutting-edge portion. The first radially inner cutting-edge portion defines an imaginary first circle having a first diameter, and has a first inner cutting profile. Each second cutting arm has a radially extending second cutting edge. The second cutting edge defines an imaginary second circle having a second diameter, and has a second cutting profile. The first diameter is greater than the second diameter, and the first inner cutting profile is identical to the second cutting profile. A rotary cutting tool has an elongated tool shank and the cutting head of the type described above disposed at a front end of the tool shank.Type: ApplicationFiled: March 28, 2024Publication date: November 28, 2024Applicant: ISCAR, LTD.Inventor: Shim’on SHITRIT
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Patent number: 12145202Abstract: 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: GrantFiled: June 21, 2022Date of Patent: November 19, 2024Assignee: ISCAR, LTD.Inventors: Gil Hecht, David Ben Harouche, Yakov Kvartovsky, Dmitry Gal
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Patent number: 12134135Abstract: A cutting tool having a cutting blade, a cutting insert and a tool holder. The cutting blade has converging peripheral blade abutment sub-surfaces exhibiting mirror symmetry about a second symmetry plane. The tool holder has a blade pocket with converging pocket abutment walls exhibiting mirror symmetry about a holder symmetry plane. The cutting tool can be assembled and utilized in four different configurations in a turret.Type: GrantFiled: July 1, 2022Date of Patent: November 5, 2024Assignee: ISCAR, LTD.Inventor: Gil Hecht
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Patent number: 12121977Abstract: A two-directional high-feed turning tool assembly includes a tool holder, a cutting insert and a clamping element securing the cutting insert to the tool holder. The cutting insert includes an active cutting edge having a centrally located forwardmost edge portion and first and second main edge portions extending rearwardly from the forwardmost edge portion, as well as sideways to an extent further than flank tool sides of the tool holder. The first and second main edge portions also can each have a relatively small immersion angle facilitating high-feed turning in two sideways directions.Type: GrantFiled: October 4, 2021Date of Patent: October 22, 2024Assignee: ISCAR, LTD.Inventor: Gil Hecht
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Patent number: 12109628Abstract: A metal cutting insert has a substrate body of cemented carbide, cermet, or ceramic and at least one cutting edge defined between a rake face and a relief face. The cutting insert has a CVD coating including a layer of aluminum titanium nitride having a cubic face centered lattice structure, represented by a formula (AlxTi1-xMy)CzN1-z wherein a stoichiometry coefficient of aluminum is 0.30<x<0.95, wherein M is at least one element selected from the group consisting of Cl and Ar, with a stoichiometry coefficient of which is 0?y<0.01, and wherein a stoichiometry coefficient of carbon is 0?z<0.3. The (AlxTi1-xMy)CzN1-z layer satisfies a relationship 10<|S1-S2|<500 MPa wherein S1 is the residual stress measured on the rake face, and S2 is the residual stress measured on the relief face.Type: GrantFiled: August 10, 2022Date of Patent: October 8, 2024Assignee: ISCAR, LTD.Inventors: Marcel Elkouby, Tomer Weinberger, Anton Nikitin
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Patent number: 12109632Abstract: 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: GrantFiled: September 22, 2021Date of Patent: October 8, 2024Assignee: ISCAR, LTD.Inventor: Gil Hecht
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Patent number: 12109635Abstract: 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: GrantFiled: February 22, 2022Date of Patent: October 8, 2024Assignee: ISCAR, LTD.Inventors: Shim'on Shitrit, Anatoly Yanovski