Patents Assigned to Iscar, Ltd.
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Patent number: 12636708Abstract: A cutting tool having a cutting insert releasably retained in insert pocket by a fastening member. The insert pocket has first and second side surfaces. The insert pocket has a base surface which includes at least one male or female type pocket engagement member which includes at least one sloping pocket wedge abutment surface. The insert has first and second side abutment surfaces. The cutting insert has an insert lower surface which includes at least one male or female type insert engagement member which includes at least one sloping insert wedge abutment surface. By virtue of the sloping orientation of the at least one pocket wedge abutment surface and the at least one insert wedge abutment surface, a clamping force applied by the fastening member urges said surfaces to slide over each other so that the cutting insert sits firmly in the insert pocket.Type: GrantFiled: January 23, 2024Date of Patent: May 26, 2026Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Patent number: 12636709Abstract: 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: GrantFiled: November 2, 2023Date of Patent: May 26, 2026Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Patent number: 12636712Abstract: A cutting tool includes a replaceable cutting head including a forward cutting portion and a rearward mounting portion and a head through hole extending therethrough. The mounting portion includes a male coupling member. The male coupling member includes a conically shaped head abutment surface. The cutting tool includes a female coupling member including a conically shaped forward holder abutment surface and an internal thread. The cutting tool includes a fastening member having an external thread. When the cutting tool is in a locked position, the male coupling member is removably retained in the female coupling member by the fastening member located in the head through hole, the fastening member external thread and the holder internal thread being threadingly engaged with each other. The head abutment surface abuts the forward holder abutment surface thereby forming a Morse taper coupling between the male and female coupling members.Type: GrantFiled: November 1, 2022Date of Patent: May 26, 2026Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Patent number: 12629757Abstract: A cutting tool part includes a cutting portion. The cutting tool part further includes a plurality of guide pads projecting radially outwards from the cutting portion. At least the cutting portion and the plurality of guide pads are made through additive manufacturing, the plurality of guide pads being integrally formed with the cutting portion in a unitary one-piece construction. A rotary cutting tool is provided having a cutting insert releasably attached to the cutting tool part.Type: GrantFiled: August 1, 2022Date of Patent: May 19, 2026Assignee: Iscar, Ltd.Inventors: Martin Ulrich Zettler, Nikolaos Poussios, Henner Michael Dziubas
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Patent number: 12623293Abstract: A tool holder has a holder body, a first clamping member, and a first fastening member. The holder body includes a fixation portion and a mounting portion located rearward of the fixation portion. The fixation portion has a front fixation surface facing in a forward direction, a cylindrical fixation bore opening out to the front fixation surface and extending rearwardly therefrom, and a longitudinally extending primary slot connecting the fixation bore to a fixation envelope surface. The first clamping member occupies a first clamping bore and traverses the primary slot. The first fastening member occupies a first fastening bore which intersects the first clamping bore and opens out to the front fixation surface. The fixation bore has a fixation bore first primary diameter which decreases and increases when the first fastening member is rotated in first fastening and first unfastening directions about the first fastening member axis, respectively.Type: GrantFiled: April 18, 2023Date of Patent: May 12, 2026Assignee: Iscar, Ltd.Inventors: Herbert Volk, Patrick Schöffel
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Patent number: 12617021Abstract: 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: GrantFiled: November 28, 2022Date of Patent: May 5, 2026Assignee: Iscar, Ltd.Inventor: Dolev Best
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Patent number: 12611718Abstract: A parting-off tool assembly including a blade holder, a parting-blade mounted to, and clamped by, the blade holder, a cutting insert and a coolant conduit mounted to the parting-blade. The cutting insert defining a cutting-edge width CW and an extended-width cutting plane of the same width. The coolant conduit with an outlet opening out to a first extension portion located within the extended-width cutting plane.Type: GrantFiled: October 18, 2021Date of Patent: April 28, 2026Assignee: Iscar, Ltd.Inventors: Ely Erlich, Gil Hecht
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Patent number: 12605771Abstract: A tool body having a longitudinal body axis has a central body recess recessed in a rear body surface thereof. The recess includes an inner recess surface, and a body recess peripheral surface extending between the inner recess surface and the rear body surface. An integral central pin extends rearwardly from the inner recess surface, and having an integral pin length measured along the longitudinal body axis from the inner recess surface to a rear pin surface thereof. In a circumferential direction about the longitudinal body axis, the body recess peripheral surface alternatingly increases and decreases in distance from the longitudinal body axis, thereby forming a plurality of angularly spaced apart longitudinal axis crests. A tool holder has a protrusion with complementary surfaces to engage the tool body. A fastening member, such as a lock nut, secures the tool body to the tool holder to form a cutting tool.Type: GrantFiled: February 9, 2023Date of Patent: April 21, 2026Assignee: ISCAR, LTD.Inventors: Martin Ulrich Zettler, Nikolaos Poussios, Henner Michael Dziubas, Tolga Kizilirmak
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Publication number: 20260042149Abstract: A cutting tool for thread cutting has a thread turning cutting insert releasably retained in an insert pocket by a fastening member. The thread turning cutting insert has a thread cutting portion having three spaced apart cutting teeth. and a chip forming groove recessed in an insert upper surface. The chip forming groove includes a near-flank groove surface close to the cutting teeth and far-flank grove surface further away from the cutting teeth. The thread cutting portion includes three cutting edges formed at the intersection of the insert upper surface and an insert peripheral surface. Each cutting edge is located on a respective cutting tooth. The thread cutting portion includes three planar land surfaces located on the insert upper surface. Each land surface extends from an entire length of a respective cutting edge to the near-flank groove surface.Type: ApplicationFiled: August 7, 2024Publication date: February 12, 2026Applicant: ISCAR, LTD.Inventors: VITALY OREN, YURI SORKIN, VLADMIR KOREN
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Patent number: 12544839Abstract: A grooving or part-off tool assembly for Swiss-style machining includes a holder. The holder includes a resilient normally-closed holder clamp. In a preferred embodiment the holder clamp biases a blade holding a cutting insert against a pocket side abutment surface of a holder pocket.Type: GrantFiled: December 16, 2022Date of Patent: February 10, 2026Assignee: ISCAR, LTD.Inventors: Gil Hecht, David Ben Harouche
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Patent number: 12491565Abstract: A cutting insert includes opposing insert first and second side surfaces. The insert first side surface includes a first mounting arrangement. The first mounting arrangement includes a) at least one first side abutment surface facing away from the insert second side surface, b) a first stopper abutment surface oriented transversely to the at least one first side abutment surface and c) two opposite-facing first wedge abutment surfaces oriented transversely to the at least one first side abutment surface and converging forwardly. An insert holder has a corresponding pocket mounting arrangement for engagement with the first mounting arrangement.Type: GrantFiled: December 22, 2022Date of Patent: December 9, 2025Assignee: Iscar, Ltd.Inventor: Shimon Athad
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Patent number: 12465981Abstract: A two-cutting-edge parting insert including a first cutting portion, a second cutting portion and an elongated body portion connecting the first and second cutting portions. The elongated body portion has a body width (BW) measurable parallel to a lateral axis and a body length (BL) measurable parallel to an elongation axis. The body width is smaller than both cut widths of the cutting edges of the first and second body portions and fulfills the condition: 0.65 mm?BW?0.95 mm; and the body length fulfills the condition: 2 mm?BL?14 mm.Type: GrantFiled: November 28, 2022Date of Patent: November 11, 2025Assignee: Iscar, Ltd.Inventor: Yaakov Guy
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Publication number: 20250276385Abstract: A cutting tool having an adapter and a cutting head. The adapter has an adapter clamping portion and a clamping mechanism. The clamping mechanism has an actuator, a central wedge and two flanges slidingly engaged to the central wedge. Each of the two flanges has an elongated rear slanted flange portion configured for clamping the cutting head.Type: ApplicationFiled: January 8, 2025Publication date: September 4, 2025Applicant: ISCAR, LTD.Inventor: MARK ASHQAR
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Publication number: 20250276390Abstract: A rotatable milling cutter body has a plurality of insert seats, each communicating with a respective, rearwardly located fastener receptacle. An insert wedge occupying the insert seat and a fastener occupying the fastener receptacle are arranged along a common central fastener axis (S). The fastener has a threaded bore extending along a fastening axis (F) which is coincident with the central fastener axis (S). The fastening axis (F) defines a radial fastening direction (Rf) perpendicular thereto. Formed in a peripheral surface of the fastener is a key recess. The fastener is configured to rotate and threadingly engage a rearwardly directed threaded pin of the insert wedge, upon insertion of a key into the key recess in a direction parallel to the radial fastening direction (Rf), followed by movement of the key in a predetermined circumferential fastening direction about the corresponding central fastener axis (S).Type: ApplicationFiled: February 29, 2024Publication date: September 4, 2025Applicant: ISCAR, LTD.Inventor: GIL HECHT
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Patent number: 12403532Abstract: 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: GrantFiled: April 1, 2021Date of Patent: September 2, 2025Assignee: ISCAR, LTD.Inventor: Gil Hecht
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Publication number: 20250269436Abstract: A cutting insert includes at least two peripheral cutting edges. An insert holder assembly includes an insert holder which include an insert pocket and an ejector chamber connected by a through hole. The insert holder assembly includes an ejector member located at least partially in the ejection chamber, and a compressible biasing member. In an inner position, the biasing member exerts a compressive force on the ejector member. When the cutting insert is releasably attached to the insert holder by a fastening member which is connected to the ejector member, to constitute a fastened position of a cutting tool, the insert holder assembly is in the inner position and the fastening member clamps the cutting insert so that the insert lower surface abuts the pocket base surface.Type: ApplicationFiled: February 28, 2024Publication date: August 28, 2025Applicant: ISCAR, LTD.Inventor: GIL HECHT
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Publication number: 20250269443Abstract: A cutting tool includes a cutting head including a rearward mounting portion and a head through hole. The mounting portion includes a male coupling member having a non-cylindrical, conically shaped head abutment surface, and at least two driven projections. The cutting tool includes a tool holder having a holder pocket which includes a female coupling member having a non-cylindrical, conically shaped forward holder abutment surface, at least two driving recesses and an internal threaded hole. In a locked position, the male coupling member is removably retained in the female coupling member by a fastening screw located in the head through hole and threadingly engaged with the holder internal threaded hole. The head abutment surface abuts the forward holder abutment surface thereby forming a secure coupling between the male and female coupling members. The driven projections are located in the driving recesses for providing torque transfer between the two parts.Type: ApplicationFiled: January 7, 2025Publication date: August 28, 2025Applicant: ISCAR, LTD.Inventor: SHIM’ON SHITRIT
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Publication number: 20250269442Abstract: 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 a peripheral side surface extending therebetween and a central mounting portion. The cutting insert has a plurality of cutting portions circumferentially spaced apart about a central axis, each cutting portion having a rake and relief surfaces located on the peripheral side surface. The central mounting portion has a plurality of female type or male type mounting elements having opposing first and second mounting flanks. The plurality of rake surfaces and first mounting flanks face in a first direction about the central axis, the plurality of second mounting flanks face in a second direction about the central axis opposite to the first direction, and each second mounting flank extends further from the central axis than its associated opposing first mounting flank.Type: ApplicationFiled: February 28, 2024Publication date: August 28, 2025Applicant: ISCAR, LTD.Inventors: JACOB HARPAZ, GIL HECHT
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Publication number: 20250262677Abstract: A tool body has base and clamping jaws which are spaced apart by a clamping recess. The clamping jaw is resiliently movable with respect to the base jaw. The clamping recess includes an insert receiving pocket and a clamping flexibility recess extending from the insert receiving pocket. The clamping jaw includes a flexible overhanging clamping portion, and a fixed clamping portion connected by a hinge clamping portion, the flexible overhanging clamping portion being delimited by the insert receiving pocket and a clamping flexibility recess. The clamping recess comprises an innermost clamping recess point which is located at the clamping flexibility recess.Type: ApplicationFiled: February 15, 2024Publication date: August 21, 2025Applicant: ISCAR, LTD.Inventor: GIL HECHT
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Publication number: 20250256335Abstract: A four-way indexable plate-shaped cutting insert that is indexable about a central insert axis and a cutting tool. The cutting includes a base body, a first insert side surface, a second insert side surface opposite the first insert side surface, a peripheral insert surface that connects the first insert side surface and the second insert side surface, and four cutting arms. The peripheral insert surface of each cutting arm includes a rake surface, a relief surface facing in the opposite direction, and a cutting edge formed at an intersection of the rake surface and the relief surface. The first insert side surface includes a first portion that is farther away from an insert median plane than the another portion thereof. The first insert abutment portion defines a coolant groove that is recessed in the first insert abutment portion. The coolant groove opening out to the first arm side portion.Type: ApplicationFiled: February 13, 2024Publication date: August 14, 2025Applicant: ISCAR, LTD.Inventor: GIL HECHT