公开(公告)号：US20240359242A1

公开(公告)日：2024-10-31

申请号：US18764710

申请日：2024-07-05

申请人： TUNGALOY CORPORATION

发明人： Issei HORI ,  Ryuichi SAJI

IPC分类号： B23C5/10 ,  B23C5/02

CPC分类号： B23C5/109 ,  B23C5/02 ,  B23C2200/203 ,  B23C2200/293 ,  B23C2210/084

摘要： Provided is a structure for improving accuracy in attaching a cutting tool to a body and making it possible to increase the number of blades while the cutting tool is mounted on the body. A cutting insert 1 includes: an upper surface 10 that has a shape with a lengthwise direction LD and a widthwise direction SD; a lower surface that is located opposite to the upper surface 10; a peripheral side surface 30 that is formed so as to connect the upper surface 10 and the lower surface; cutting edges 51 and 52 that are respectively formed on an intersecting ridge line of the upper surface 10 and the peripheral side surface 30, and on an intersecting ridge line of the lower surface and the peripheral side surface 30, and each have a curved ridge line that extends in a lengthwise direction thereof; and a through hole 60 that penetrates from the upper surface 10 to the lower surface. End surfaces 31 and 32 located in the lengthwise direction LD of the upper surface 10 and the lower surface, of the peripheral side surface 30, are respectively inclined with respect to the upper surface 10 and the lower surface, and are parallel to each other. A reference surface 33 that is located opposite to the cutting edges 51 and 52, of the peripheral side surface 30, is a flat surface that is orthogonal to the upper surface 10 and the lower surface.

公开(公告)号：US20240351111A1

公开(公告)日：2024-10-24

申请号：US18628942

申请日：2024-04-08

申请人： TUNGALOY CORPORATION

发明人： Ryou SASAKI ,  Ryuichi SAJI

IPC分类号： B23B27/00 ,  B23B27/16

CPC分类号： B23B27/007 ,  B23B27/1662 ,  B23B2200/3618

摘要： A cutting tool with sufficient stiffness of a body is provided.
A cutting tool 10 includes a body 100 in which a discharge groove 120 for guiding and discharging chips is formed, and a cutting insert 200 fastened and fixed on a distal end side of the body 100. The cutting insert 200 includes a first surface 210 through which a through-hole 230 is opened, and a major cutting edge 231 formed so as to extend straight at an end part of the first surface 210. A protrusion portion 130 protruding so as to cover part of the first surface 210 of the cutting insert 200 from outside is formed at the body 100. A clearance hole 170 is formed so as to extend from a surface of the body 100 opposite the cutting insert 200 toward a corner cutting edge 242 when viewed from the distal end side along a central axis AX1.

公开(公告)号：US12083604B2

公开(公告)日：2024-09-10

申请号：US17596798

申请日：2020-07-03

申请人： TUNGALOY CORPORATION ,  DMG MORI CO., LTD.

发明人： Masahiro Kurokawa ,  Yukinori Andou ,  Masaya Uehara

IPC分类号： B23B29/04 ,  B23B27/16

CPC分类号： B23B29/046 ,  B23B27/1692

摘要： Provided is a cutting tool including: a head portion which includes an insert mounting seat on which a cutting insert is installed; a shank which is installed on the rear end side of the head portion and holds the head portion; and a bolt which fixes a position of the head portion with respect to the shank when the head portion is mounted on the shank. The head portion is configured to be mountable to the shank, with the angle thereof changing around a center axis.

公开(公告)号：US12059735B2

公开(公告)日：2024-08-13

申请号：US17842263

申请日：2022-06-16

申请人： TUNGALOY CORPORATION

发明人： Issei Hori ,  Ryuichi Saji

IPC分类号： B23C5/10 ,  B23C5/20 ,  B23C5/02

CPC分类号： B23C5/109 ,  B23C5/02 ,  B23C2200/203 ,  B23C2200/293 ,  B23C2210/084

摘要： Provided is a structure for improving accuracy in attaching a cutting tool to a body and making it possible to increase the number of blades while the cutting tool is mounted on the body. A cutting insert 1 includes: an upper surface 10 that has a shape with a lengthwise direction LD and a widthwise direction SD; a lower surface that is located opposite to the upper surface 10; a peripheral side surface 30 that is formed so as to connect the upper surface 10 and the lower surface; cutting edges 51 and 52 that are respectively formed on an intersecting ridge line of the upper surface 10 and the peripheral side surface 30, and on an intersecting ridge line of the lower surface and the peripheral side surface 30, and each have a curved ridge line that extends in a lengthwise direction thereof; and a through hole 60 that penetrates from the upper surface 10 to the lower surface. End surfaces 31 and 32 located in the lengthwise direction LD of the upper surface 10 and the lower surface, of the peripheral side surface 30, are respectively inclined with respect to the upper surface 10 and the lower surface, and are parallel to each other. A reference surface 33 that is located opposite to the cutting edges 51 and 52, of the peripheral side surface 30, is a flat surface that is orthogonal to the upper surface 10 and the lower surface.

公开(公告)号：US11982000B2

公开(公告)日：2024-05-14

申请号：US18050771

申请日：2022-10-28

申请人： TUNGALOY CORPORATION

发明人： Takao Katagiri

IPC分类号： C23C14/06 ,  C04B41/50 ,  C23C28/00 ,  C23C30/00

CPC分类号： C23C28/44 ,  C04B41/5063 ,  C04B41/5068 ,  C23C14/0641 ,  C23C28/42 ,  C23C30/005 ,  B23B2224/24

摘要： A coated cutting tool including a substrate and a coating layer formed on the substrate, wherein the coating layer has an alternately laminated structure of a first layer and a second layer, the first layer contains a compound having a composition represented by (AlaTi1-a)N (0.80≤a≤0.95), the second layer contains a compound having a composition represented by (AlbMcTi1-b-c)N (M represents at least one of Si or B, 0.80≤b≤0.95, and 0

公开(公告)号：US11980952B2

公开(公告)日：2024-05-14

申请号：US17422224

申请日：2020-08-27

申请人： TUNGALOY CORPORATION

发明人： Satoru Yoshida

IPC分类号： B23C5/20 ,  B23C5/10

CPC分类号： B23C5/20 ,  B23C5/109 ,  B23C5/202 ,  B23C2200/0494

摘要： The present disclosure provides a cutting insert that is economical and can be stably fixed to a tool body. A first edge line (10R) of a cutting insert (2) is a rectangle having a first side (11) and a third side (13) as long sides and a second side (12) and a fourth side (14) as short sides. Cutting edges are formed at the first side (11), the second side (12) and the third side (13); on the other hand no cutting edge is formed at the fourth side (14). At a second edge line (20R) having the same shape as the first edge line (10R), a sixth side (22) where a cutting edge is formed is opposite to the fourth side (14), and an eighth side (24) where a cutting edge is not formed is opposite to the second side (12). A peripheral side surface (30) includes a fourth side surface (34) facing the fourth side (14) and the sixth side (22). The fourth side surface (34) extends from a first end surface (10) to a second end surface (20) and is inclined in a direction from the second side (12) to the fourth side (14).

公开(公告)号：US20240139835A1

公开(公告)日：2024-05-02

申请号：US18497550

申请日：2023-10-30

申请人： TUNGALOY CORPORATION

发明人： Hikaru SHIROMA

IPC分类号： B23C5/10

CPC分类号： B23C5/109 ,  B23C2200/0472

摘要： The present disclosure can realize further prevention of a mounting mistake caused when a cutting insert is mounted on an insert seat is implemented by voluntarily improving a structure around the insert seat in particular. An insert mounting part has a shape including a bottom surface, a constraint surface that comes into contact with at least a part of a constraint target surface formed as a surface of a peripheral side surface of the cutting insert inclining with respect to an upper surface or a lower surface, an evacuation part that allows evacuation from the constraint surface hedging a cutting edge of the cutting insert, a first protrusion area that extends hiding a part of the upper surface or the lower surface of the cutting insert, a relief part that is formed at a part that a corner part of the cutting insert approaches so as to hedge the corner part, and a second protrusion area that extends from an upper side of the relief part so as to cover the part of the upper surface or the lower surface of the cutting insert mounted on the insert mounting part.

公开(公告)号：US11911827B2

公开(公告)日：2024-02-27

申请号：US17686540

申请日：2022-03-04

申请人： TUNGALOY CORPORATION

发明人： Yusuke Suzuki

IPC分类号： B23B27/14

CPC分类号： B23B27/141 ,  B23B27/143 ,  B23B2200/087 ,  B23B2200/202

摘要： There is provided a cutting insert having a low possibility that chips roughen a machined surface of a workpiece in back turning. The cutting insert includes a rake surface, a peripheral side surface, a front cutting edge which is provided on a ridge of the rake surface and the peripheral side surface, and a main cutting edge which is provided on the ridge so as to be continuous with the front cutting edge and has an extension direction which forms an obtuse angle with an extension direction of the front cutting edge, the main cutting edge is curved into a U shape over an entire length of an effective edge range which functions as a cutting blade, and the deepest point of the U shape is positioned in a range closer to a side of a corner than a position which divides a straight line connecting both ends of the main cutting edge at a ratio of 2:1 from the side of the corner positioned adjacent to the front cutting edge.

公开(公告)号：US11780019B2

公开(公告)日：2023-10-10

申请号：US17585890

申请日：2022-01-27

申请人： TUNGALOY CORPORATION

发明人： Takahiro Aso

IPC分类号： B23C5/20 ,  B23C5/10

CPC分类号： B23C5/202 ,  B23C2200/0494 ,  B23C2200/161 ,  B23C2200/168

摘要： Chip discharge control is further improved. A cutting insert includes an upper surface, a lower surface, a screw hole having an axis penetrating from the upper surface to the lower surface, a peripheral side surface, and a major cutting edge, a wiper edge, and an inner edge formed in an intersecting region between the upper surface and the peripheral side surface. In a side view in which the peripheral side surface on which the inner edge is formed is seen from a direction perpendicular to the axis, the inner edge includes a recessed part recessed toward the lower surface, a length DL of the inner edge on one side of the recessed part in the side view is longer than a length DR of the inner edge on the other side of the recessed part, a lowest point of the inner edge is at a position lower than a flat part of the upper surface, and at least a part of the inner edge on the one side is at a position higher than the flat part of the upper surface. A cutting edge angle φ23L of the inner edge on the one side of the recessed part is larger than a half of a cutting edge angle φ23R of the inner edge on the other side of the recessed part.

公开(公告)号：US20230219145A1

公开(公告)日：2023-07-13

申请号：US18054200

申请日：2022-11-10

申请人： TUNGALOY CORPORATION

发明人： Yusuke SUZUKI

IPC分类号： B23B27/16

CPC分类号： B23B27/16

摘要： Provided is a tool head in a head replaceable cutting tool configured on the basis of a novel idea so as to allow external measurement to be easily performed, while allowing cutting performance to be maintained. The tool head in the head replaceable cutting tool has a substantially cylindrical shape, and can be fastened to a shank held on a machine tool, and moreover includes an insert mounting seat on which a cutting insert is to be detachably mounted, the tool head further including a point, a line, or a surface that defines a reference surface from which a cutting edge of the cutting insert has a predetermined length to a predetermined portion thereof.