公开(公告)号：US20250001478A1

公开(公告)日：2025-01-02

申请号：US18707849

申请日：2022-11-15

Applicant: A.L.M.T. Corp.

Inventor： Akihito ONO ,  Kohichiroh KIMURA ,  Yuichiro SEKI

IPC: B21C3/02 ,  B21C1/16

Abstract: There is provided an irregularly-shaped diamond die for producing an irregularly-shaped wire, wherein a processing hole is provided, the processing hole having a reduction portion and a bearing portion in this order from an upstream side in a wire drawing direction, a corner portion having a curved shape and a non-corner portion located at a position different from a position of the corner portion are provided in a cross section of the bearing portion perpendicular to the wire drawing direction, and a surface roughness of the corner portion is greater than a surface roughness of the non-corner portion. The surface roughness Sa of the corner portion is equal to or less than 0.30 μm and the surface roughness Sa of the non-corner portion is equal to or less than 0.20 μm.

公开(公告)号：US20240304514A1

公开(公告)日：2024-09-12

申请号：US18268333

申请日：2021-12-22

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  A.L.M.T. Corp.

Inventor： Toru MAEDA ,  Miki MIYANAGA ,  Daisuke KONDO ,  Kei HIRAI ,  Masayuki ITO ,  Shin-ichi YAMAGATA

IPC: H01L23/373 ,  B22F7/04 ,  B32B15/01 ,  H01L21/48

CPC classification number: H01L23/3735 ,  B22F7/04 ,  B32B15/01 ,  H01L21/4871

Abstract: A composite material has a plate shape and has a first surface and a second surface. The second surface is opposite to the first surface. The composite material includes a plurality of first layers and at least one second layer. The first layers and the second layer are alternately layered along a thickness direction of the composite material such that the first layers are located at the first surface and the second surface. Each of the first layers is a layer including copper. The second layer is a layer of a molybdenum powder compact impregnated with copper. A compressive residual stress of 50 MPa or less acts on each of the first layer located at the first surface and the first layer located at the second surface.

公开(公告)号：US11890831B2

公开(公告)日：2024-02-06

申请号：US17600298

申请日：2020-03-05

Applicant: Sumitomo Electric Industries, Ltd. ,  A.L.M.T. Corp.

Inventor： Kengo Goto ,  Tomoaki Ikeda ,  Akihisa Hosoe ,  Fukuto Ishikawa ,  Masanori Sugisawa

IPC: B32B15/01 ,  C22C29/06 ,  C23C18/32 ,  C23C18/38 ,  C25D3/38

CPC classification number: B32B15/01 ,  C22C29/065 ,  C23C18/32 ,  C23C18/38 ,  C25D3/38 ,  Y10T428/12576

Abstract: A composite member excellent in corrosion resistance of a substrate and excellent in heat radiation property is provided. A composite member includes a substrate composed of a composite material containing magnesium or a magnesium alloy and SiC and a coating layer provided on a surface of the substrate. The coating layer includes an outermost layer provided as an outermost surface and an intermediate layer provided directly under the outermost layer. The outermost layer contains nickel and phosphorus. The intermediate layer is mainly composed of copper. The intermediate layer has a thickness not smaller than 30 μm.

公开(公告)号：US20230347427A1

公开(公告)日：2023-11-02

申请号：US18218249

申请日：2023-07-05

Applicant: A.L.M.T. Corp.

Inventor： Sakuya TANAKA ,  Koji SAWA

IPC: B23D77/00 ,  B23D77/02

CPC classification number: B23D77/00 ,  B23D77/02 ,  B23D2277/105 ,  B23D2277/72

Abstract: A reamer incudes a core and a plurality of outer-circumference cutting edges provided on an outer circumference of the core and made of a hard tool material. The core extends from a front end to a rear end. The core is provided with a plurality of flutes from the front end to the rear end. A center-of-gravity adjustment portion, which adjusts a distance from a center of rotation to a center of gravity, is provided at least partially from terminal ends of the plurality of flutes on a rear end side to the rear end of the core. The center-of-gravity adjustment portion causes the deviation of the center of gravity from the center of rotation to be smaller than when no center-of-gravity adjustment portion is provided.

公开(公告)号：US20230321704A1

公开(公告)日：2023-10-12

申请号：US18019177

申请日：2021-08-11

Applicant: A.L.M.T. Corp. ,  Sumitomo Electric Industries, Ltd.

Inventor： Kohei KURAMOTO ,  Takuya KINOSHITA ,  Yutaka KOBAYASHI ,  Makoto YUKAWA ,  Kohichiroh KIMURA ,  Kentaro SHIRO

IPC: B21C23/08

CPC classification number: B21C23/08

Abstract: A wire drawing die 1 includes a non-diamond material, is provided with a die hole 1h, and has a reduction 1c and a bearing 1d that is positioned downstream of the reduction 1c. A reduction angle γ which is an opening angle of the die hole 1h at the reduction 1c is less than or equal to 17°, and a surface roughness Ra of the die hole 1h within ±20 μm from a specific position inside the bearing 1d in a circumferential direction of the die hole 1h that is perpendicular to a wire drawing direction is less than or equal to 0.025 μm.

公开(公告)号：US20230147380A1

公开(公告)日：2023-05-11

申请号：US17913383

申请日：2021-02-03

Applicant: A.L.M.T. Corp.

Inventor： Takeshi KAWABATA ,  Shuichi KAWANO

IPC: B23B27/20 ,  B23D77/02 ,  B23B51/00

CPC classification number: B23B27/20 ,  B23D77/02 ,  B23B51/00

Abstract: A rotary cutting tool includes a tool body and a cutting edge tip provided at the tool body. At least one first groove is provided in a rake face of the cutting edge tip, the first groove has a portion inclined with respect to a rotation axis, and a front end of the first groove is provided at a front cutting edge. A rear end of the first groove is provided on an inner side with respect to an outer peripheral cutting edge, and an irregularity of the outer peripheral cutting edge is 30 μm or less.

公开(公告)号：US20220168995A1

公开(公告)日：2022-06-02

申请号：US17600298

申请日：2020-03-05

Applicant: Sumitomo Electric Industries, Ltd. ,  A.L.M.T. Corp.

Inventor： Kengo GOTO ,  Tomoaki IKEDA ,  Akihisa HOSOE ,  Fukuto ISHIKAWA ,  Masanori SUGISAWA

IPC: B32B15/01 ,  C23C18/38 ,  C23C18/32 ,  C22C29/06

Abstract: A composite member excellent in corrosion resistance of a substrate and excellent in heat radiation property is provided. A composite member includes a substrate composed of a composite material containing magnesium or a magnesium alloy and SiC and a coating layer provided on a surface of the substrate. The coating layer includes an outermost layer provided as an outermost surface and an intermediate layer provided directly under the outermost layer. The outermost layer contains nickel and phosphorus. The intermediate layer is mainly composed of copper. The intermediate layer has a thickness not smaller than 30 μm.

公开(公告)号：US11312632B2

公开(公告)日：2022-04-26

申请号：US16341624

申请日：2017-10-12

Applicant: A.L.M.T. Corp.

Inventor： Takehiko Hayashi ,  Tomoyuki Ishida ,  Takahiro Yamakawa

IPC: C01B32/949

Abstract: Provided is a tungsten carbide powder satisfying such a condition that when the Fsss particle size thereof is represented by a (μm) and the BET particle size thereof converted from the BET specific surface area is represented by b (μm), a is 0.40 μm or more and 1.50 μm or less, and b/a is 0.17 or more and 0.35 or less.

公开(公告)号：US11293082B2

公开(公告)日：2022-04-05

申请号：US16762903

申请日：2018-11-13

Applicant: A.L.M.T. Corp.

Inventor： Takayuki Fudo ,  Kazuo Sasaya ,  Takehiko Hayashi

IPC: C22C29/08 ,  C01B32/949 ,  C22C1/05 ,  B22F1/00

Abstract: A powder containing tungsten carbide has an Fsss particle size of greater than or equal to 0.3 μm and less than or equal to 1.5 μm, and a content rate of the tungsten carbide of greater than or equal to 90% by mass. The powder has a crystallite size (average particle diameter) Y satisfying a relational expression of Y≤0.1×X+0.20 (X: the Fsss particle size of the power containing tungsten carbide).

公开(公告)号：US11123841B2

公开(公告)日：2021-09-21

申请号：US16099542

申请日：2017-04-06

Applicant: A.L.M.T. Corp.

Inventor： Nobuhide Nakamura

IPC: B24D3/06 ,  B24D3/00 ,  B24D5/14 ,  B24D3/34 ,  B24D5/02 ,  B24D18/00

Abstract: A super-abrasive grinding wheel includes a core and a super-abrasive grain layer provided on a surface of the core, the super-abrasive grain layer including diamond abrasive grains and CBN abrasive grains, the diamond abrasive grains and the CBN abrasive grains being fixed to the core in a single layer by a binder. The diamond abrasive grains and the CBN abrasive grains have projecting tips acting on a workpiece, the projecting tips having a variation in height of 10 μm or less, the diamond abrasive grains having their projecting tips with irregularities of 0.1 μm or more in height.