公开(公告)号：US20230121524A1

公开(公告)日：2023-04-20

申请号：US18067036

申请日：2022-12-16

申请人： ISCAR, LTD.

发明人： GIL HECHT ,  DAVID BEN HAROUCHE

IPC分类号： B23B29/04

摘要： 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.

公开(公告)号：US20230076841A1

公开(公告)日：2023-03-09

申请号：US17467828

申请日：2021-09-07

申请人： ISCAR, LTD.

发明人： JONY SAFFOURI

IPC分类号： B23B27/10 ,  B23B27/16

摘要： 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.

公开(公告)号：US11446746B2

公开(公告)日：2022-09-20

申请号：US16708565

申请日：2019-12-10

申请人： Iscar, Ltd.

发明人： Alexander Khina ,  Shmuel Vainshtain

IPC分类号： B23B31/11

摘要： A rotary cutting tool includes a replaceable cutting head and a tool holder. The replaceable cutting head includes a forward cutting portion and a rearward mounting portion. The mounting portion includes a male coupling member that includes a back-tapered conical external thread. The tool holder includes a female coupling member that includes an internal thread. When the rotary cutting tool is in a locked position, the external thread is threadingly engaged with the internal thread.

公开(公告)号：US20220118527A1

公开(公告)日：2022-04-21

申请号：US17073617

申请日：2020-10-19

申请人： Iscar, Ltd.

发明人： GIL HECHT

IPC分类号： B23B29/04

摘要： A tool coupling extends along a longitudinal axis and has a first component, a second component, and a clamp for fastening the first component to the second component. The first component has a male clamping portion, the second component has a female clamping portion, and the clamp is located in an inner cavity of the second component. The male clamping portion has a first abutment region located axially rearward of a first plane perpendicular to the longitudinal axis, the inner cavity has a second abutment region located axially forward of the first plane, and the first and second abutment regions face towards the first plane. In a fastened state, a clamp first engagement region of the clamp makes clamping contact with the male clamping portion's first abutment region, and a clamp second engagement region of the clamp makes clamping contact with the inner cavity's second abutment region.

公开(公告)号：US11267057B2

公开(公告)日：2022-03-08

申请号：US16810351

申请日：2020-03-05

申请人： Iscar, Ltd.

发明人： Leonid Shpigelman

IPC分类号： B23C5/10

摘要： An end mill includes a plurality of teeth and flutes. The teeth and their associated flutes include one or more correlated physical parameters. One such correlated parameter is that, at an axial location in a front half of an effective cutting length, at least one tooth of the plurality of teeth has a rake angle smaller than an average rake angle value of the plurality of teeth, and, at the same axial location, a flute preceding each such tooth has a helix angle larger than an average helix angle value of the plurality of flutes.

公开(公告)号：US20220009010A1

公开(公告)日：2022-01-13

申请号：US16922617

申请日：2020-07-07

申请人： Iscar, Ltd.

发明人： HANOCH GUY

IPC分类号： B23C5/10 ,  B23C5/22

摘要： A replaceable milling head rotatable in a cutting direction about a longitudinal central axis, the central axis defining a forward direction and an opposite rearward direction, has a forward cutting portion and a rear threaded coupling portion for coupling to a shank. The cutting portion includes two or more key actuating portions which assist in mounting the milling head onto the shank. The cutting portion includes a plurality of helical chip flutes alternating with cutting edges. At least one or more of the cutting edges and flutes extend axially rearward of at least a portion of the key actuating portions.

公开(公告)号：US11110521B2

公开(公告)日：2021-09-07

申请号：US16261621

申请日：2019-01-30

申请人： Iscar, Ltd.

发明人： Gil Hecht

IPC分类号： B23B51/02 ,  B23B51/00

摘要： A cutting head rotatable about a first axis, has a cap portion and a rigid mounting protuberance joined thereto. The cap portion has a plurality of cutting portions circumferentially alternating with a plurality of head chip flutes, and a head base surface facing in an axial rearward direction. The mounting protuberance exhibits rotational symmetry about the first axis, extends axially rearwardly from the head base surface, and has a plurality of circumferentially spaced apart convex clamping surfaces. The plurality of cutting portions define a cutting diameter, the plurality of head chip flutes are inscribed by an imaginary first circle having a first diameter, and the plurality of clamping surfaces are circumscribed by an imaginary second circle having a second diameter. The first diameter is greater than the second diameter, and the second diameter is less than forty percent of the cutting diameter.

公开(公告)号：US11097362B2

公开(公告)日：2021-08-24

申请号：US16708826

申请日：2019-12-10

申请人： Iscar, Ltd.

发明人： Yuri Men

IPC分类号： B23C5/10 ,  B23C5/22

摘要： A cutting insert has opposing upper and lower surfaces interconnected by a peripheral side surface, an insert axis passing through the upper and lower surfaces, and first and second upper cutting edges formed at the intersection of the upper surface and the peripheral side surface. A lower central protuberance having first, second, third and fourth abutment walls extends downwardly from the lower surface. In a cross-section taken in a first horizontal plane perpendicular to the insert axis and intersecting the lower central protuberance, the first, second, third and fourth abutment walls define an imaginary quadrilateral having diagonally opposing first and third internal angles and diagonally opposing second and fourth internal angles. The first and third internal angles are equal to each other, and the second and fourth internal angles are not equal to each other. Two cutting inserts are removably secured in a rotary cutting tool.

公开(公告)号：US11090740B2

公开(公告)日：2021-08-17

申请号：US16273775

申请日：2019-02-12

申请人： Iscar, Ltd.

发明人： Sagi Elkayam

IPC分类号： B23P15/34 ,  B23B27/16 ,  B23C5/22 ,  B23C5/06

摘要： 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.

公开(公告)号：US11090730B2

公开(公告)日：2021-08-17

申请号：US16411189

申请日：2019-05-14

申请人： Iscar, Ltd.

发明人： Gil Hecht

IPC分类号： B23B27/02 ,  B23B27/00

摘要： 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.