公开(公告)号：US20190061013A1

公开(公告)日：2019-02-28

申请号：US16091004

申请日：2017-04-05

申请人： TUNGALOY CORPORATION

发明人： Yusuke HIRANO ,  Hirosato NISHIZAWA

IPC分类号： B23B27/14 ,  B23C5/16 ,  C23C14/06 ,  C23C14/34

摘要： Provided is a coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate. The coating layer includes an alternating laminate structure of an alternating laminate of: a first composite nitride layer including a compound having a composition represented by (TixAl1-x)N (wherein x denotes an atomic ratio of the Ti element based on a total of the Ti element and the Al element and satisfies 0.10≤x≤0.35); and a second composite nitride layer including a compound having a composition represented by (TiyAlzM1-y-z)N (wherein: M denotes an element of at least one kind selected from Zr, Hf, V, Nb, Ta, Cr, Mo, W, Si and Y; y satisfies 0.30≤y≤0.90; z satisfies 0.10≤z≤0.70; and y and z satisfy y+z≤1). The first composite nitride layer includes a phase having a lattice constant of from 0.400 nm or more to 0.430 nm or less and a phase having a lattice constant of from 0.755 nm or more to 0.810 nm or less.

公开(公告)号：US20180362409A1

公开(公告)日：2018-12-20

申请号：US16060367

申请日：2016-11-25

申请人： TUNGALOY CORPORATION

发明人： Takashi WATANABE

IPC分类号： C04B35/111 ,  B23B27/14 ,  C04B35/119 ,  C04B35/56 ,  C04B35/48

摘要： A ceramic sintered body containing aluminum oxide, tungsten carbide and zirconium oxide, wherein: the zirconium oxide contains ZrO and ZrO2; the ZrO2 has a crystal structure or structures of one or two kinds selected from the group consisting of a tetragonal crystal structure and a cubic crystal structure; and when, in X-ray diffraction, regarding a peak intensity for a (111) plane of the ZrO as being denoted by I1, regarding a peak intensity for a (101) plane of ZrO2 having a tetragonal crystal structure as being denoted by I2t, and also regarding a peak intensity for a (111) plane of ZrO2 having a cubic crystal structure as being denoted by I2c, a ratio of I1 based on a total of I1, I2t and I2c [I1/(I1+I2t+I2c)] is from 0.05 or more to 0.90 or less.

公开(公告)号：US10155270B2

公开(公告)日：2018-12-18

申请号：US15326737

申请日：2015-07-30

申请人： TUNGALOY CORPORATION

发明人： Takahiro Aso

IPC分类号： B23C5/20 ,  B23C5/10

摘要： A cutting insert (1) has a first end surface (2); a second end surface (3) opposing the first end surface; and a peripheral side surface (4) connecting the first and second end surfaces. A cutting edge (6) extends along an intersecting edge between the first end surface and the peripheral side surface. A land (20) is formed in the first end surface and extends along the cutting edge. At least one groove (18) is formed in the peripheral side surface, each groove forming an opening in the first end surface and separating the cutting edge into a plurality of portions. In a plan view of the first end surface, a portion of the land adjacent to an end area (S) of the groove, has a greater width than a width of a portion of the land which is distant from the groove.

公开(公告)号：US10131002B2

公开(公告)日：2018-11-20

申请号：US15313109

申请日：2015-05-25

申请人： TUNGALOY CORPORATION

发明人： Takahiro Matsumura ,  Satoru Yoshida

IPC分类号： B23C5/20 ,  B23C5/06 ,  B23C5/10

摘要： A polygonal cutting has opposing first and second end surfaces connected by a side surface, and a plurality of cutting edges formed between the end surfaces and the side surface. Each cutting edge is formed at corner and includes a corner cutting edge and a major cutting edge connected to the corner cutting edge. A rake surface formed along the cutting edge on first the end surface is inclined toward the second end surface. In a side view of the cutting insert, the major cutting edge includes an inclined part which is inclined so as to approach the second end surface from the corner cutting edge. A portion of the rake surface along the inclined part is formed such that an angle of inclination toward the second end surface increases toward the corner in a direction along the intersecting edge between the first end surface and the side surface.

公开(公告)号：US10124423B2

公开(公告)日：2018-11-13

申请号：US15312755

申请日：2015-07-13

申请人： TUNGALOY CORPORATION

发明人： Jun Otsuka

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

摘要： A rotary cutting tool has a plurality of circumferentially spaced grooves, each having a plurality of cutting inserts mounted. Each cutting insert has a wave-shaped major cutting edge, a corner cutting edge, and a minor cutting edge. The cutting inserts are arranged such that, the phases of the waves of the rotational trajectories formed by the cutting inserts that are adjacent to each other in a direction along the tool rotational axis coincide with each other in one groove. Also, the rotational trajectories of at least part of cutting edge portions of at least some cutting inserts are overlapped with each other in the direction of the tool rotational axis. Accordingly, even when the cutting edge portion is used as a major cutting edge and as an inner cutting edge, it is still possible to reduce cutting load and suppress breakage.

公开(公告)号：US09993878B2

公开(公告)日：2018-06-12

申请号：US15031027

申请日：2014-11-07

申请人： TUNGALOY CORPORATION

发明人： Kinya Takahashi ,  Hiroyuki Satoh

IPC分类号： B23B27/14 ,  C23C16/40 ,  C23C16/56 ,  C23C16/06 ,  C23C16/44 ,  C23C14/06 ,  C23C28/04

CPC分类号： B23B27/148 ,  B23B2222/16 ,  B23B2222/28 ,  B23B2224/04 ,  B23B2224/32 ,  B23B2226/125 ,  B23B2226/18 ,  B23B2228/04 ,  B23B2228/105 ,  C23C14/0664 ,  C23C16/06 ,  C23C16/403 ,  C23C16/44 ,  C23C16/56 ,  C23C28/042 ,  C23C28/044

摘要： A coated cutting tool includes a substrate and a coating layer formed onto the surface of the substrate. The coating layer contains an α-type aluminum oxide layer. A residual stress value at the (116) plane of the α-type aluminum oxide layer is greater than 0. A residual stress value at the (012) plane of the α-type aluminum oxide layer is smaller than 0.

公开(公告)号：USD818016S1

公开(公告)日：2018-05-15

申请号：US29600431

申请日：2017-04-12

申请人： TUNGALOY CORPORATION

设计人： Satoru Yoshida

公开(公告)号：US20180127874A1

公开(公告)日：2018-05-10

申请号：US15797762

申请日：2017-10-30

申请人： TUNGALOY CORPORATION

发明人： Hiroyuki SATOH

IPC分类号： C23C16/34 ,  B23B27/14 ,  C23C16/40

CPC分类号： C23C16/34 ,  B23B27/14 ,  B23B2228/105 ,  C23C16/36 ,  C23C16/403 ,  C23C28/042 ,  C23C28/044

摘要： A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer including at least one α-type aluminum oxide layer, wherein, in the α-type aluminum oxide layer, a texture coefficient TC (1,1,9) of a (1,1,9) plane is 1.4 or more. TC  ( 1 , 1 , 9 ) = I  ( 1 , 1 , 9 ) I 0  ( 1 , 1 , 9 )  { 1 8  ∑ I  ( h , k , l ) I 0  ( h , k , l ) } - 1 ( 1 ) (In formula (1), I (h,k,l) denotes a peak intensity for an (h,k,l) plane in X-ray diffraction of the α-type aluminum oxide layer, I0 (h,k,l) denotes a standard diffraction intensity for an (h,k,l) plane which is indicated on a JCPDS Card No. 10-0173 for α-type aluminum oxide, and (h,k,l) refers to eight crystal planes of (0,1,2), (1,0,4), (1,1,0), (1,1,3), (0,2,4), (1,1,6), (2,1,4) and (1,1,9).)

公开(公告)号：US09855613B2

公开(公告)日：2018-01-02

申请号：US14649484

申请日：2013-12-03

申请人： TUNGALOY CORPORATION

发明人： Haruki Kumoi ,  Ryuichi Saji

IPC分类号： B23C5/22 ,  B23C5/02 ,  B23C5/10

CPC分类号： B23C5/02 ,  B23C5/109 ,  B23C5/2208 ,  B23C5/2221 ,  B23C2200/0416 ,  B23C2200/0494 ,  B23C2210/168

摘要： In a body for a cutting tool having an insert seat, to which a cutting insert is removably attached, not only a structure for preventing a crack at the insert seat, caused by stress concentration, is adopted, but also the cutting insert is stably seated at and firmly attached to the insert seat. A recessed curve portion is formed at a crossing portion between a bottom surface and a wall surface of the insert seat. As viewed in cross section perpendicular to the bottom surface, the cross-sectional shape of the curve portion includes an arc having a radius R of curvature within a range from 0.5-1.2 mm. A height from the bottom surface to a connecting portion between the wall surface and the curve portion is set within a range from 0.1-0.8 mm.

公开(公告)号：US20170341152A1

公开(公告)日：2017-11-30

申请号：US15541606

申请日：2016-05-17

申请人： TUNGALOY CORPORATION

发明人： Takehiro IDA

IPC分类号： B23B27/04 ,  B23B27/14

CPC分类号： B23B27/04 ,  B23B27/14 ,  B23B27/145 ,  B23B27/16 ,  B23B2200/0423

摘要： A cutting insert having a first end surface, a second end surface, and a peripheral side surface. The peripheral side surface includes a rake surface, a front flank and a first cutting edge located in an intersecting edge between the rake surface and the front flank. The first end surface includes a central surface and a side flank located closer to the front flank as compared to the central surface. An intersecting edge between the central surface and the peripheral side surface serves as a first edge, and an intersecting edge between the side flank and the peripheral side surface serves as a second edge, and an angle formed by the first cutting edge and the first edge serves as a first angle α, and an angle formed by the first cutting edge and the second edge serves as a second angle β, wherein α is smaller than β.