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1. 发明授权

US09616507B2 Replaceable head cutting tool 有权
公开(公告)号：US09616507B2
公开(公告)日：2017-04-11
申请号：US14385277
申请日：2013-03-13
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Takayuki Azegami , Tarou Abe
IPC分类号： B23C5/22 , B23C5/10 , B21K25/00
CPC分类号： B23C5/22 , B21K25/00 , B23C5/10 , B23C2210/02 , B23C2210/03 , B23C2240/32 , B23C2270/06 , Y10T407/22
摘要： A replaceable head cutting tool increases the strength of engagement between a tool body and a coupling member without causing damage. A cylindrical mounting unit of the coupling member which is made of a metal having hardness lower than the hardness of the tool body, is inserted into a mounting hole having a concave portion formed on the inner surface of the tool body. The mounting unit is plastically deformed so as to increase in diameter, and the outer peripheral surface of the mounting unit contacts the inner peripheral surface of the mounting hole and is engaged with the concave portion which includes a first wall surface that is inclined toward the outer peripheral side as it moves in an insertion direction of the mounting unit, and a second wall surface that is inclined toward the inner peripheral side as it moves in the insertion direction.

2. 发明申请

US20150266113A1 END MILL WITH COOLANT HOLES 有权
标题翻译：末端铣刀与冷却帽
公开(公告)号：US20150266113A1
公开(公告)日：2015-09-24
申请号：US14436001
申请日：2013-10-21
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Koji Fukata , Takayuki Azegami
IPC分类号： B23C5/28 , B23C5/10
CPC分类号： B23C5/28 , B23C5/10 , B23C2210/202 , B23C2210/246 , B23C2210/285 , B23C2250/12 , Y10T407/14
摘要： An end mill body comprises: bottom blades formed at ridgelines where gashes and tip flank faces intersect, the gashes are formed at the tips of chip discharge grooves. At least one of the bottom blades serves as a long bottom blade that extends toward an inner peripheral side longer than the remaining bottom blades. The end mill body also has coolant holes formed between the chip discharge grooves. A coolant hole which is located between a chip discharge groove of a gash and a chip discharge groove located behind the chip discharge groove in a rotational direction is open to the tip clearance face of the long bottom blade. A coolant hole which is located between the chip discharge groove of the gash and a chip discharge groove located in front of the chip discharge groove in the rotational direction is open to the gash of the long bottom blade.
摘要翻译：端铣刀主体包括：底部刀片，其形成在其中气体和尖端侧面相交的脊线处，在切屑排出槽的顶端处形成气体。底部刀片中的至少一个用作长的底部刀片，其延伸到比其余底部刀片更长的内周侧。端铣刀体还具有形成在切屑排出槽之间的冷却剂孔。位于斜槽的排屑槽和位于排屑槽后方的排屑槽沿旋转方向的冷却剂孔向长底刀片的刀头间隙面开口。位于开槽的排屑槽和位于排屑槽的前方的排屑槽沿着旋转方向的冷却剂孔向长底刀片的槽口开口。

3. 发明申请

US20150037105A1 END MILL WITH COOLANT HOLES 审中-公开
标题翻译：末端铣刀与冷却帽
公开(公告)号：US20150037105A1
公开(公告)日：2015-02-05
申请号：US14374268
申请日：2013-02-08
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Kouji Fukata , Genki Matsumoto , Takayuki Azegami
IPC分类号： B23C5/28 , B23C5/10
CPC分类号： B23C5/28 , B23C5/10 , B23C2210/202 , B23C2210/285 , B23C2210/40 , Y10T407/14
摘要： An end mill comprises: a main body with two coolant holes; three chip discharge grooves formed at an outer periphery of a tip portion of the main body; gashes formed at the tip portions of the three chip discharge grooves; and three end cutting edges formed at intersecting ridgeline portions between tip flanks and wall surfaces facing an end mill rotation direction of the gashes. One end cutting edge is long and extends across the axis line at a tip of the main body. Inner peripheral ends of two remaining end cutting edges are disposed at intervals from the axis line. Two coolant holes are drilled toward a tip side in a direction of the axis line. A first coolant hole opens at the tip flank of the long edge, and a second coolant hole opens at a gash of one of the two remaining end cutting edges.
摘要翻译：端铣刀包括：具有两个冷却剂孔的主体; 三个排屑槽，形成在主体的顶端部的外周; 在三个排屑槽的前端形成的气体; 以及三个端部切削刃，其形成在尖端侧面和面对端铣刀旋转方向的壁面之间的相交的棱线部分处。一端切割刃较长，并且在主体的尖端处延伸穿过轴线。两个剩余末端切削刃的内周端部从轴线间隔设置。沿着轴线的方向朝向前端侧钻出两个冷却剂孔。第一冷却剂孔在长边缘的尖端侧面处开口，并且第二冷却剂孔在两个剩余端部切削刃之一的间隙处打开。

4. 发明申请

US20180079016A1 FORMED END MILL 审中-公开
公开(公告)号：US20180079016A1
公开(公告)日：2018-03-22
申请号：US15554288
申请日：2016-03-24
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Takayuki Azegami
IPC分类号： B23C5/12 , B23C5/10
CPC分类号： B23C5/12 , B23C3/28 , B23C5/10 , B23C5/1009 , B23C5/14 , B23C2210/04 , B23C2210/0457 , B23C2210/0478 , B23C2210/0485 , B23C2210/088 , B23C2210/241 , B23C2210/242 , B23C2210/285 , B23C2210/40
摘要： In a formed end mill, a peripheral cutting edge has a smaller-diameter cutting part and a larger-diameter cutting part. An imaginary line obtained by lining up a deepest point of a flute bottom of a chip discharge flute, which appears in a cross-sectional view perpendicular to an axis of an end mill body, in an extending direction of the chip discharge flute is defined as a virtual flute bottom line. A flute helix angle, which is formed between the virtual flute bottom line and the axis, in a side view when the end mill body is seen from a radial direction orthogonal to the axis, is 0 degrees or more at a distal end part of the chip discharge flute in the axial direction, and increases gradually from the distal end part toward a posterior end in the axial direction.

5. 发明授权

US09821383B2 Ball end mill 有权
公开(公告)号：US09821383B2
公开(公告)日：2017-11-21
申请号：US14388484
申请日：2013-03-13
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Takayuki Azegami , Tarou Abe
IPC分类号： B23C5/10
CPC分类号： B23C5/1009 , B23C2210/205 , B23C2210/285 , B23C2210/287 , B23C2210/54 , Y10T407/1948
摘要： A ball end mill, which includes long and short cutting edges alternately formed, shows excellent chip discharge performance without sacrificing strength. An even number of cutting edges are formed at intervals in a circumferential direction on a front end of an end mill body rotated about an axis and have rotation trajectories formed around the axis that form a hemispherical shape. The cutting edges adjacent to each other in the circumferential direction with one cutting edge interposed are long cutting edges that intersect with each other on the axis. The other cutting edges adjacent to each other in the circumferential direction with one cutting edge interposed are short cutting edges that include inner peripheral ends at positions distant from the axis. A gash of the long cutting edge and a gash of the short cutting edge connect with each other on a front end side of the end mill body.

6. 发明申请

US20160303664A1 BALL END MILL 审中-公开
标题翻译：球头铣刀
公开(公告)号：US20160303664A1
公开(公告)日：2016-10-20
申请号：US15030424
申请日：2014-10-23
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Takayuki Azegami , Taro Abe , Masanori Kawasaki
IPC分类号： B23C5/10
CPC分类号： B23C5/1009 , B23C5/10 , B23C2210/203 , B23C2210/285 , B23C2210/54
摘要： In the ball end mill, at least two end cutting edges (9) are extended to the vicinity of an axis (O) at a tip portion of an end mill main body (1) which rotates around the axis (O). In two gashes (7) in which two end cutting edges (9) adjacent to each other in a circumferential direction are formed, a first gash (7A) on the end mill rotation direction (T) side extends beyond the axis (O) on the tip of the end mill main body (1) and a second gash (7B) on the rear side in the end mill rotation direction (T) does not exceed the axis (O). A first tip flank face (8A) which intersects with the first gash (7A) through a first end cutting edge (9A) is extended toward a second tip flank face (8B) which intersects with the second gash (7B) through a second end cutting edge (9B). A concavely curved surface (10) which is concavely curved and connected to an extended portion (8c) of the first tip flank face (8A) and extends toward the outer periphery side is formed between the extended portion (8c) of the first tip flank face (8A) and the second tip flank face (8B). The second end cutting edge (9B) intersects with the concavely curved surface (10) at an obtuse angle.
摘要翻译：在球头立铣刀中，至少两个末端切削刃（9）延伸到围绕轴线（O）旋转的端铣刀主体（1）的尖端处的轴线（O）附近。在其中形成有在圆周方向上彼此相邻的两个端部切削刃（9）的两个气体（7）中，端铣刀旋转方向（T）侧的第一间隙（7A）延伸超过轴线（O）端铣刀主体（1）的末端和端铣刀旋转方向（T）的后侧的第二间隙（7B）不超过轴线（O）。通过第一端切割刃（9A）与第一间隙（7A）相交的第一末端侧面（8A）朝着与第二间隙（7B）相交的第二末端侧面（8B）延伸穿过第二端部切割刃（9B）。在第一末端侧面（8A）的延伸部（8c）与第一末端侧面（8A）的延伸部（8c）之间形成凹曲面并与第一末端侧面（8A）的延伸部分（8c）连续并向外周侧延伸的凹曲面面（8A）和第二末端侧面（8B）。第二端切削刃（9B）以钝角与凹曲面（10）相交。

7. 发明申请

US20150043980A1 BALL END MILL 有权
标题翻译：球头铣刀
公开(公告)号：US20150043980A1
公开(公告)日：2015-02-12
申请号：US14388176
申请日：2013-03-13
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Genki Matsumoto , Takayuki Azegami
IPC分类号： B23C5/10
CPC分类号： B23C5/1009 , B23C2210/0414 , B23C2210/0442 , Y10T407/1948
摘要： A ball end mill comprises a gash provided at a front end portion of a main end mill body rotated about an axis; and at least one cutting edge which has a rotational trajectory around the axis that forms a convex hemispherical shape having a center on the axis. The cutting edge is formed at a peripheral edge portion of a wall surface of the gash. A difference between a first and second included angles is within ±7°, where the first included angle is formed between the axis and a straight line connecting the center with a cutting edge position at which a depth of the gash is maximal in a cross-section orthogonal to the cutting edge, and the second included angle is formed between the axis and a straight line connecting the center with a cutting edge position at which a rake angle of the cutting edge is maximal.
摘要翻译：球头铣刀包括设置在主轴旋转的主端铣刀主体的前端部的间隙; 以及至少一个切削刃，其具有围绕所述轴线的旋转轨迹，所述旋转轨迹形成具有在所述轴线上的中心的凸半球形状。切削刃形成在间隙的壁面的周缘部。第一和第二夹角之间的差值在±7°之内，其中第一夹角形成在轴线与连接中心与切割深度位置之间的直线之间的直线处，并且所述第二夹角形成在所述轴线和连接所述中心与所述切削刃的前角最大的切削刃位置的直线之间。

8. 发明申请

US20180154460A1 TAPERED END MILL AND CUTTING HEAD 审中-公开
公开(公告)号：US20180154460A1
公开(公告)日：2018-06-07
申请号：US15577936
申请日：2016-06-13
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Takayuki Azegami
IPC分类号： B23C5/04 , B23C5/10
摘要： A tapered end mill includes a cutting edge portion which includes an end cutting edge which extends from an inner peripheral side of an end mill body to an outer peripheral side thereof and a tapered peripheral cutting edge which extends from an outer peripheral end of the end cutting edge to a rear end side and has a cutting edge diameter which gradually increases toward the rear end side, the cutting edge portion being provided on a distal end portion of the end mill body which rotates around an axial line. A truncated conical tapered neck portion having an outer diameter which gradually increases toward the rear end side is provided on the rear end side of the cutting edge portion, and a columnar straight neck portion is provided about the axial line between the cutting edge portion and the tapered neck portion.

9. 发明授权

US09550238B2 Replaceable machining head 有权
标题翻译：可更换加工头
公开(公告)号：US09550238B2
公开(公告)日：2017-01-24
申请号：US14775932
申请日：2014-03-03
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Yasushi Ota , Taro Abe , Yuki Matsuoka , Takayuki Azegami
IPC分类号： B23C5/10 , C23C30/00
CPC分类号： B23C5/10 , B23C2210/02 , B23C2210/03 , B23C2228/10 , B23C2240/32 , C23C14/06 , C23C14/5873 , C23C30/005 , Y10T407/27 , Y10T408/78 , Y10T408/95
摘要： Provided is a replaceable machining head wherein: fractures on the tool attaching portion do not occur; the production cost is minimized; the tool life of the working tool will be lengthened; and the head body is free from a risk of falling off during replacement. In the replaceable machining head, a cutting edge section is formed on the front side of a head body; a tool attaching portion to which a working tool is to be attached, is formed on the rear end side of the cutting edge section; tool attaching faces are formed in the tool attaching portion; the surface of the head body 1 is coated with a coating film; and the number of droplets or macro particles having convex shapes with a size of 0.3 μm to 5.0 μm, is 200 or less, per area of 40 μm×60 μm on the surface of the coating film over the tool attaching faces.
摘要翻译：提供一种可替换的加工头，其中：不发生在工具附接部上的断裂; 生产成本最小化; 加工工具的刀具寿命延长; 并且头体在更换期间没有脱落的风险。在可更换加工头中，在头体的前侧形成切削刃部，在切削刃部的后端侧形成有安装有加工工具的工具安装部，工具安装面形成在工具安装部中; 头体1的表面涂覆有涂膜; 并且在工具安装面上的涂膜表面上的面积为40μm×60μm的尺寸为0.3μm〜5.0μm的具有凸形状的液滴或微粒子的数量为200个以下。

10. 发明申请

US20140308082A1 HEAD REPLACEMENT-TYPE CUTTING TOOL 有权
标题翻译：头替换型切割工具
公开(公告)号：US20140308082A1
公开(公告)日：2014-10-16
申请号：US14352174
申请日：2011-10-17
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Taro Abe , Yoshihiko Kimura , Takayuki Azegami
IPC分类号： B23C5/24
CPC分类号： B23C5/10 , B23B31/1122 , B23C2210/02 , B23C2210/03 , B23C2240/32 , Y10T407/1914
摘要： A head replacement-type cutting tool having a holder provided at the attachment hole with the fitting part formed in a tapered shape, and the leading end face is perpendicular to the central axis. The attachment part formed in a tapered shape protrudes on the cutting head from the rear end face perpendicular to the central axis of the cutting part. The cutting head is attached to the holder in such a manner that the attachment part is fitted into the fitting part by screwing the female thread part with the male thread part and the leading end face is in contact with the rear end face. The inner diameter to outer diameter ratio d/D1 which is a ratio of the inner diameter d of the fitting part before being fitted in relation to the outer diameter D1 of the leading end part of the holder is from 0.5 to 0.8.
摘要翻译：一种头置换型切割工具，具有设置在安装孔处的保持器，其中装配部分形成为锥形，并且前端面垂直于中心轴线。形成为锥形的安装部分从垂直于切割部分的中心轴线的后端面突出在切割头上。切割头通过将外螺纹部分与外螺纹部螺合而将前端面与后端面接触的方式安装在支架上。内径与外径之比d / D1为配合前的嵌合部的内径d相对于保持件的前端部的外径D1的比率为0.5〜0.8。

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