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2. 发明公开

EP4347921A1 A COATED CUTTING TOOL 审中-公开
公开(公告)号：EP4347921A1
公开(公告)日：2024-04-10
申请号：EP22730473.0
申请日：2022-05-25
申请人： AB Sandvik Coromant
发明人： VON FIEANDT, Linus , MORJAN BRENNING, Raluca , ENGQVIST, Jan
IPC分类号： C23C28/04 , C23C30/00 , C23C16/00 , C23C16/36 , C23C16/40

3. 发明公开

EP4347920A1 A COATED CUTTING TOOL 审中-公开
公开(公告)号：EP4347920A1
公开(公告)日：2024-04-10
申请号：EP22730472.2
申请日：2022-05-25
申请人： AB Sandvik Coromant
发明人： VON FIEANDT, Linus , MORJAN BRENNING, Raluca , ENGQVIST, Jan
IPC分类号： C23C28/04 , C23C30/00 , C23C16/36 , C23C16/52 , C23C16/02 , C23C16/40

4. 发明公开

EP4198660A1 A METHOD FOR GENERATING A METAL CUTTING TOOL PATH CYCLE 审中-公开
公开(公告)号：EP4198660A1
公开(公告)日：2023-06-21
申请号：EP21214960.3
申请日：2021-12-16
申请人： AB Sandvik Coromant
发明人： JOHANSSON, Adam , LÖF, Ronnie
IPC分类号： G05B19/4093 , B23B1/00
摘要： A computer-implemented method for generating a tool path cycle for removing stock (12) from a blank by means of a turning tool (1), the turning tool (1) comprising first and second cutting edges (2, 3) connected by a convex nose cutting edge (4), such that a predefined target shape (5) is formed, comprising the steps of:
receiving an input of a blank shape (10),
receiving an input of the target shape (5)
setting of an offset distance (m),
receiving an input of a turning tool (1),
setting a first cut direction (25) and a second cut direction (26),
dividing the first layer (11) into segments (16, 17, 18) separated by the border lines (19, 20),
such that one longitudinal set of segments (11, 18, 43) is adjacent to the longitudinal portions (9, 21, 39)
such that one radial set of segments (17, 42, 44) is adjacent to the radial portions (8, 38, 40),
if the first cut direction (25) is along the Z-axis, removing the longitudinal set of segments (11, 18, 43), followed by removing the radial set of segments (17, 42, 44),
if the first cut direction (25) is along the X-axis, removing the radial set of segments (17, 42, 44), followed by removing the longitudinal set of segments (11, 18, 43).

5. 发明公开

EP4194128A1 MILLING TOOL WITH REINFORCED CHIP DIVIDING GROOVES 审中-公开
公开(公告)号：EP4194128A1
公开(公告)日：2023-06-14
申请号：EP21213001.7
申请日：2021-12-08
申请人： AB Sandvik Coromant
发明人： BLURTSYAN, David
IPC分类号： B23C5/10
摘要： The invention relates to a milling tool (1) having a longitudinal axis (C) around which the milling tool is rotatable in a direction of rotation (R), wherein a plurality of teeth (6) and a corresponding number of flutes (7) extend axially along a cutting portion (5) following a helical path around the longitudinal axis, wherein each tooth (6) comprises a main cutting edge (10) formed at the intersection between a land (9) and a rake face in surface (8) of the flute. At least one chip dividing groove (11) formed in the land (9) intersects the flute surface (8), forming an edge, a portion of which forming a trailing edge (16) extending from the root of the chip dividing groove to the trailing corner, with respect to the direction of rotation. A reinforcement surface at trailing edge (16) provides a locally reduced rake angle.

6. 发明公开

EP4108367A1 CLAMPING DEVICE FOR TOOL HOLDER 审中-实审
公开(公告)号：EP4108367A1
公开(公告)日：2022-12-28
申请号：EP21181281.3
申请日：2021-06-23
申请人： AB Sandvik Coromant
发明人： MÄTLIK, Gunnar
IPC分类号： B23B31/26 , B23B31/30
摘要： A clamping device for releasably holding a tool holder shank (71), comprising:
- a housing (2);
- a drawbar (8) axially moveable in a bore (3) in the housing in a first axial direction (D1) between an advanced releasing position and a retracted locking position;
- engagement members (20) moveable under the effect of the drawbar into locking engagement with the tool holder shank;
- a sleeve-shaped actuating member (30) surrounding a part of the drawbar and axially moveable in relation to it;
- a piston (40) received in the bore and fixed to the actuating member; and
- a wedge (50) arranged on the outside of the drawbar and configured to move the drawbar rearwards in the bore when pressed inwards towards a longitudinal centre axis of the drawbar by movement of the piston and the actuating member in the first axial direction.

7. 发明公开

EP4019165A1 A CUTTING TOOL 审中-公开
公开(公告)号：EP4019165A1
公开(公告)日：2022-06-29
申请号：EP20216552.8
申请日：2020-12-22
申请人： AB Sandvik Coromant
发明人： GARCIA, José, Luis , HOLMSTRÖM, Erik , DAHL, Leif , BRUHN, Johnny
IPC分类号： B22F7/06 , B23B27/14 , B23K35/30 , B23P15/28 , B24D3/06 , C04B35/52 , C04B35/5831 , C22C1/05 , C22C5/08 , C22C26/00 , C22C29/06 , C22C29/08 , B22F5/00 , B23K101/00
摘要： The present invention relates to a cutting tool comprising a supporting body and a cBN, or PCD, cutting edge tip, wherein the cBN, or PCD, cutting edge tip is attached to the supporting body via a 5-150 µm thick braze joint, the supporting body is of cemented carbide comprising 3-25 wt% of a metallic binder, optionally up to 25 wt% of carbides or carbonitrides of one or more elements of group 4, 5, or 6 in the periodic table of elements, and rest WC, wherein the metallic binder comprises at least 40 wt% Ni, and wherein said braze joint comprises, in the order from the supporting body, a first layer of TiC situated next to the supporting body with an average thickness of 10-400 nm, a second layer, with an average thickness of 0.5-8 µm, comprising in average at least 5 wt% metallic Ni, in average 25-60 wt% metallic Cu and in average 15-45 wt% metallic Ti, and a third layer, with an average thickness of 4-145 µm, comprising metallic Ag and metallic Cu.

8. 发明公开

EP4015117A1 A METAL CUTTING TURNING TOOL 审中-公开
公开(公告)号：EP4015117A1
公开(公告)日：2022-06-22
申请号：EP20214113.1
申请日：2020-12-15
申请人： AB Sandvik Coromant
发明人： WIKBLAD, Krister , LÖF, Ronnie , JOHANSSON, Adam
IPC分类号： B23B29/24
摘要： A turning tool (1) comprising a coupling portion (3),
wherein the coupling portion (3) extends along a coupling axis (A2), the coupling axis (A2) defines a longitudinal axis of the turning tool (1),
wherein the turning tool (1) comprises a first cutting element (7) and a second cutting element (8),
wherein the first cutting element (7) comprises a first cutting edge (5),
wherein the second cutting element (8) comprises a second nose cutting edge (6) separating and connecting a second forward cutting edge (13) and a second rearward cutting edge (15);
wherein the first cutting element (7) comprises a first top surface (20),
wherein the second cutting element (8) comprises a second top surface (21),
wherein the first and second cutting elements (7, 8) intersect an imaginary circle or cylinder (C1) having a center axis (A3) thereof perpendicular to the coupling axis (A2),
wherein the first cutting element (7) is inclined in relation to the second cutting element (8) by an inclination angle (ω),
wherein said inclination angle (ω) is measured around the center axis (A3) of the imaginary circle (C1),
wherein the second top surface (21) is facing in a direction which is perpendicular to or substantially perpendicular to the coupling axis (A2) and perpendicular or substantially perpendicular to the center axis (A3) of the imaginary circle or cylinder (C1).

9. 发明公开

EP3987083A1 A COATED CUTTING TOOL 审中-公开
公开(公告)号：EP3987083A1
公开(公告)日：2022-04-27
申请号：EP20732245.4
申请日：2020-06-17
申请人： AB Sandvik Coromant
发明人： JOHNSON, Lars , SARAIVA, Marta
IPC分类号： C23C28/04 , C23C14/32 , C23C28/00 , C23C14/16 , C23C14/34 , C23C30/00

10. 发明公开

EP3932599A1 A METAL CUTTING INDEXABLE DRILL TOOL 有权
公开(公告)号：EP3932599A1
公开(公告)日：2022-01-05
申请号：EP20183366.2
申请日：2020-07-01
申请人： AB Sandvik Coromant
发明人： CARLBERG, Håkan
IPC分类号： B23B51/04 , B23B27/14
摘要： A metal cutting indexable drill tool (100), comprising: an elongated drill body (101) having a boring shaft (102) and a mount shank (103); a center drill insert (104) mounted at a distal end (105) of the boring shaft (102) in an insert seat (106) configured to hold the insert against a bottom of the insert seat (106); a drill flute (107) of the boring shaft (102) configured to direct and form a chip from the center drill insert (104), wherein the drill flute (107) comprises a chip forming surface (108) at a distal end (109) of the drill flute (107); characterized in that the chip forming surface (108) is perpendicular to the bottom of the insert seat (106) for the center drill insert (104); and in that the chip forming surface (108) is arranged at a distance X from a peripheral corner (110) of the center drill insert (104) to a point (301) on a curve (302), which curve is formed by the intersection of the chip forming surface (108) and an imaginary inscribed sphere (302), wherein the center (303) of the imaginary inscribed sphere coincide with the center of the distal end (105) of the boring shaft (102), wherein the radius of the imaginary inscribed sphere is defined by the peripheral corner (110) of the insert (104); and wherein the distance X divided with the diameter of the drill tool Dc is equal to a chip parameter A which is indicative of the chip diameter to boring diameter ratio; wherein the chip parameter A is 0.3 ≤ A ≤ 0.5.

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