公开(公告)号：US20180304377A1

公开(公告)日：2018-10-25

申请号：US15769622

申请日：2016-08-23

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP. ,  DMG MORI CO., LTD.

Inventor： Shinya Ikenaga ,  Junya Okida ,  Morihiro Hideta

IPC: B23B27/16 ,  B23B27/22

CPC classification number: B23B27/1622 ,  B23B27/12 ,  B23B27/22 ,  B23B2200/0461 ,  B23B2200/08

Abstract: A rotary cutting tool insert according to one embodiment of the present invention includes: an annular rake face provided with at least one recess portion; and a cutting edge formed at an outer circumference of the rake face, the recess portion having a width of more than or equal to 1.2 mm and less than or equal to 3.0 mm in a circumferential direction of the rake face, a distance between the cutting edge and an end of the recess portion at the outer circumference side of the rake face being more than or equal to 0.1 mm and less than or equal to 0.5 mm. According to the rotary cutting tool insert according to the one embodiment of the present invention, roughness of a processed surface and vibration due to a cutting process can be prevented.

公开(公告)号：US10118228B2

公开(公告)日：2018-11-06

申请号：US14917229

申请日：2014-06-20

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Shinya Ikenaga ,  Yosuke Shimamoto ,  Tomoyuki Fukuyama ,  Junya Okida ,  Masanobu Ueda

IPC: B23B27/04 ,  B23B27/22 ,  B23B27/14 ,  B23B29/04

Abstract: A cutting insert includes a leading cutting edge having a rake angle in the range of 20° to 35° in a central region in a width direction; and a rake face having a breaker groove formed in the central region in the width direction and land portions formed in both end regions in the width direction. The land portions have a rake angle smaller than the rake angle in the central region in the width direction. The breaker groove includes opposing side faces separated from each other by a distance that decreases with increasing distance from the leading cutting edge and four shoulder portions of the same height that are formed on the opposing side faces at positions above the land portions, two of the shoulder portions being closer to the leading cutting edge and to outer sides in the width direction than the other two shoulder portions are.

公开(公告)号：US20150231702A1

公开(公告)日：2015-08-20

申请号：US14420583

申请日：2013-08-06

Applicant: DMG MORI SEIKI CO., LTD. ,  SUMITOMO ELECTRIC HARDMETAL CORP. ,  SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Junya Okida ,  Kazuya Ishikawa ,  Shigenori Emoto ,  Daisuke Murakami ,  Shinya Ikenaga ,  Kazuo Noguchi ,  Suehiro Ikeda ,  Takayuki Hirokawa ,  Yoshio Ohara ,  Morihiro Hideta ,  Yohei Oda

IPC: B23B27/12 ,  B23B27/16

CPC classification number: B23B27/12 ,  B23B27/1622 ,  B23B2200/0461 ,  B23B2200/128 ,  B23B2200/161 ,  B23B2200/205 ,  B23B2205/12 ,  B23B2250/12 ,  B23B2260/026 ,  B23C2200/0427 ,  Y10T407/14 ,  Y10T407/1906

Abstract: A cutting insert is configured to include: a first portion having a rake face, a flank face, a cutting edge, and a face facing an insert attachment portion at an end of a tool main body; and a second portion having a side surface including at least one flat plane that is parallel to a center line of a tool or inclined at a prescribed angle to the center line. The second portion extends continuously to a region surrounded by the face of the first portion. The second portion is fitted into the tool main body to position the cutting insert and to prevent the cutting insert from rotating.

Abstract translation: 切削刀片被构造成包括：第一部分，其具有前刀面，后刀面，切削刃以及面对刀具主体端部的刀片附接部分的面; 以及具有侧表面的第二部分，所述侧表面包括平行于工具的中心线或相对于所述中心线以规定角度倾斜的至少一个平面。 第二部分连续延伸到由第一部分的面包围的区域。 第二部分装配到工具主体中以定位切削刀片并防止切削刀片旋转。

公开(公告)号：US11446742B2

公开(公告)日：2022-09-20

申请号：US17052863

申请日：2019-03-26

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Yuma Kawakami ,  Tomoyuki Fukuyama ,  Shinya Ikenaga

IPC: B23B27/16 ,  B23B27/14 ,  B23B51/00

Abstract: When seen in a direction perpendicular to a seating surface, the second boundary line has a first portion and a second portion, the first portion having an inclination relative to the second cutting edge portion in a counter clockwise direction, the first portion being located between the first boundary line and an intersection between the second boundary line and a straight line passing through a center of a mounting hole and perpendicular to the second cutting edge portion, the second portion being located opposite to the first portion relative to the intersection, the second portion having an inclination relative to the second cutting edge portion in a clockwise direction.

公开(公告)号：US09776251B2

公开(公告)日：2017-10-03

申请号：US14420583

申请日：2013-08-06

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP. ,  SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  DMG MORI SEIKI CO., LTD.

Inventor： Junya Okida ,  Kazuya Ishikawa ,  Shigenori Emoto ,  Daisuke Murakami ,  Shinya Ikenaga ,  Kazuo Noguchi ,  Suehiro Ikeda ,  Takayuki Hirokawa ,  Yoshio Ohara ,  Morihiro Hideta ,  Yohei Oda

IPC: B23B27/00 ,  B23B27/12 ,  B23B27/16

CPC classification number: B23B27/12 ,  B23B27/1622 ,  B23B2200/0461 ,  B23B2200/128 ,  B23B2200/161 ,  B23B2200/205 ,  B23B2205/12 ,  B23B2250/12 ,  B23B2260/026 ,  B23C2200/0427 ,  Y10T407/14 ,  Y10T407/1906

Abstract: A cutting insert is configured to include: a first portion having a rake face, a flank face, a cutting edge, and a face facing an insert attachment portion at an end of a tool main body; and a second portion having a side surface including at least one flat plane that is parallel to a center line of a tool or inclined at a prescribed angle to the center line. The second portion extends continuously to a region surrounded by the face of the first portion. The second portion is fitted into the tool main body to position the cutting insert and to prevent the cutting insert from rotating.