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公开(公告)号：US11504780B2
公开(公告)日：2022-11-22
申请号：US16651189
申请日：2019-09-04
发明人： Tangwei Zhao , Tomoyuki Fukuyama
IPC分类号： B23C5/00
摘要： The first cutting insert is attached to a first pocket. The second cutting insert is attached to a second pocket. The third cutting insert is attached to a third pocket. The first pocket has a first seat surface, a second seat surface, a third seat surface, and a first swarf discharging groove. The second pocket has a fourth seat surface, a fifth seat surface, a sixth seat surface, and a second swarf discharging groove. The third pocket has a seventh seat surface, an eighth seat surface, a ninth seat surface, and a third swarf discharging groove. In a cross section perpendicular to an axis, an angle formed between a straight line along the sixth seat surface and a tangent of the second swarf discharging groove at a boundary between the outer circumferential surface and the second swarf discharging groove is more than 90°.
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公开(公告)号：US20220258251A1
公开(公告)日：2022-08-18
申请号：US17622127
申请日：2020-02-03
申请人： AB SANDVIK COROMANT
发明人： Peng WU , Martin MAGNEVALL , Sebastian LEVIN
摘要： A cutting tool for metal cutting includes a tool body having an insert seat and a recess formed therein. The tool body further includes vibration damping means. The vibration damping means have a cantilever member, the cantilever member being adjacent to the recess of the tool body. The cantilever member has a cantilever beam and an end mass, wherein the cantilever member extends between a fixed end and a free end. The fixed end is permanently connected to the tool body. The cantilever beam extends from the fixed end and the end mass extends from the free end.
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公开(公告)号：US11285548B2
公开(公告)日：2022-03-29
申请号：US16202288
申请日：2018-11-28
申请人： Iscar, Ltd.
发明人： Gil Hecht , Adi Shapir
摘要： A single-sided three-way indexable milling insert for feed 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 a cutting edge including exactly three main cutting sub-edges and three secondary cutting sub-edges. A material volume VF of the cutting insert and a void volume VS of the insert fulfill the condition VS/VF≥0.30.
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公开(公告)号：US20210291277A1
公开(公告)日：2021-09-23
申请号：US16328513
申请日：2016-08-31
申请人： MAQ AB
发明人： Qilin FU , Cornel-Mihai NICOLESCU , Amir RASHID
摘要： Rotatable assembly (10) having one end (12) adapted to be secured to a rotatable support for rotating the rotatable assembly (10) about a rotational axis (28), the rotatable assembly (10) comprising: a main body (18) having a cavity (56); a damping mass (38) arranged within the cavity (56) and movable in radial directions (30), substantially perpendicular to the rotational axis (28), relative to the main body (18); a damping structure (36) arranged to support the damping mass (38) relative to the main body (18) and arranged to damp vibrational movements of the damping mass (38) relative to the main body (18) in the radial directions (30); wherein the damping structure (36) comprises a plurality of spring elements (40); and wherein each spring element (40) has a flat appearance.
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公开(公告)号：US10987743B2
公开(公告)日：2021-04-27
申请号：US16176395
申请日：2018-10-31
申请人： Iscar, Ltd.
发明人： Gil Hecht , David Ben Harouche
摘要： 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.
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公开(公告)号：US10967449B2
公开(公告)日：2021-04-06
申请号：US16379118
申请日：2019-04-09
申请人： GUEHRING KG
发明人： Peter Haenle , Thomas Bischoff
摘要： The invention relates to a rotary tool (1; 101; 201) for cutting large inside diameters at the outer circumference (2) of which at least one cutting edge (4) is arranged, comprising a support structure (10; 110; 210) which indirectly or directly supports the at least one cutting edge (4), and comprising a chucking portion (24) for coupling to a tool holder, wherein the support structure (10; 110; 210) widens in an umbrella-type manner starting from a coupling portion (11) adjacent to the chucking portion (24) and is radially stiffened by a stiffening structure (12).
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公开(公告)号：US10688570B2
公开(公告)日：2020-06-23
申请号：US16076495
申请日：2016-08-19
摘要： An indexable rotary cutting tool and insert is capable of performing a high-accuracy cutting process with high efficiency. A twist angle of an outer peripheral cutting edge of the tool has a positive value, an axial rake angle of the cutting edge of a corner R of the tool at a boundary point between the cutting edge of the corner R and the outer peripheral cutting edge has a positive value, the axial rake angle of the cutting edge of the corner R at a reference point has a negative value, and the radial rake angle at least between the boundary point and the reference point in an entire edge length region of the cutting edge of the corner R has a negative value. The radial rake angle at the reference point is smaller than the radial rake angle at the boundary point.
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公开(公告)号：US10576556B2
公开(公告)日：2020-03-03
申请号：US16065758
申请日：2016-12-21
发明人： Kwang Soo Park , Sook Hwan Kim
摘要： Provided is a cutter apparatus for machining a difficult-to-machine material, the cutter apparatus including: a cutting tool body which has a fastening portion formed at a center thereof; one or more cutters which are installed on the cutting tool body, and have superhard insert tips fixed to end portions thereof, respectively; and an angle adjusting unit which is installed in an internal space of the cutters, and adjusts angles of the cutters by spreading or retracting the cutters, so that angles of the cutters may be easily adjusted in accordance with a condition for cutting a difficult-to-machine material, in order to prevent damage to the superhard insert tips when machining a difficult-to-machine material having high hardness and high toughness.
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公开(公告)号：US20200038979A1
公开(公告)日：2020-02-06
申请号：US16572178
申请日：2019-09-16
发明人： Jonathan FAIR
摘要： A hob for a cutting apparatus including a hollow body of a sintered hard metal composition and a cavity located within the body, the cavity having a volume in the range of about 10% to about 90% of the volume of the body.
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公开(公告)号：US20190099816A1
公开(公告)日：2019-04-04
申请号：US16087007
申请日：2017-04-13
发明人： Miroslav Zetek , Vaclav Schornik
摘要： The milling cutter according to the present invention consists of insert holders (2) where these insert holders (2) project from a carrier disc (1) which is adapted for clamping onto the spindle of a machine tool, and the individual holders (2) are connected with one another by braces (3). Arms (5) are provided between the holders (2) and the carrier disc (1).
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