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公开(公告)号：EP3950184A1
公开(公告)日：2022-02-09
申请号：EP20777061.1
申请日：2020-03-27
摘要： There is provided a base material for a hard sintered body including a pillar portion having a central axis and extending in an axial direction of the central axis. The pillar portion has a first outer peripheral portion disposed in an outer peripheral portion of the pillar portion, and forming a part of the outer peripheral portion, a second outer peripheral portion disposed in the outer peripheral portion of the pillar portion, and forming a part of the outer peripheral portion, and a protruding stripe portion of the base material located in a connection portion between the first outer peripheral portion and the second outer peripheral portion which are connected to each other in a cross-sectional view perpendicular to the central axis, and extending in the axial direction. In the cross-sectional view, one side portion of the first outer peripheral portion extending in a circumferential direction or a radial direction is located inside the other side portion in the radial direction. In the cross-sectional view, one side portion of the second outer peripheral portion extending in the circumferential direction or the radial direction is located outside the other side portion in the radial direction. The protruding stripe portion of the base material is located in a connection portion between the other side portion of the first outer peripheral portion and one side portion of the second outer peripheral portion, and protrudes outward in the radial direction.
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公开(公告)号：EP3040146A1
公开(公告)日：2016-07-06
申请号：EP14839052.9
申请日：2014-08-20
发明人： FUKATA Koji
CPC分类号： B23C5/28 , B23C5/10 , B23C2210/202 , B23C2210/282 , B23C2210/40 , B23C2250/12
摘要： The discharge performance of chips generated by end cutting edges adjacent to a backward side of a long end cutting edge in a rotational direction of an end mill is improved. End cutting edges (9) are formed at intersecting ridgeline portions between tip flank faces (8) and gashes (7) at the tips of a plurality of chip discharge grooves (4) that are formed in an end mill body (1). At least one of the end cutting edges (9) is a long end cutting edge (9A) that extends further toward an inner peripheral side than the other end cutting edges (9B, 9C). Coolant holes (10) are formed between the chip discharge grooves (4) within the end mill body (1). The interval, in a tip view in the direction of an axis (O), between the long end cutting edge (9A) and an opening of a first coolant hole (10A) that opens at the backward side thereof in the rotational direction (T) of the end mill is made greater than the interval, in the tip view in the direction of the axis (O), between a second end cutting edge (9B) adjacent to the backward side of the long end cutting edge (9A) in the rotational direction (T) of the end mill and an opening of a second coolant hole (10B) that opens at the backward side thereof in the rotational direction (T) of the end mill.
摘要翻译： 在端铣刀的旋转方向上，由与长端切削刃的后侧相邻的端部切削刃产生的切屑的排出性能得到改善。 在形成于端铣刀主体（1）中的多个排屑槽（4）的末端处的末端后刀面（8）和间隙（7）之间的交叉棱线部分处形成端部切削刃（9）。 至少一个端部切削刃9是比另一端部切削刃9B，9C更向内周侧延伸的长切削刃9A。 在端铣刀主体（1）内的切屑排出槽（4）之间形成冷却孔（10）。 在长轴端切削刃（9A）与第一冷却剂孔（10A）的开口之间沿着轴线（O）方向的顶视图中的间隔在第一冷却剂孔（10A）的旋转方向（T ）大于在轴线（O）的方向上的顶视图中在与长端切削刃（9A）的后侧相邻的第二端部切削刃（9B）之间的间隔 立铣刀的旋转方向（T）和在立铣刀的旋转方向（T）的后方侧开口的第二冷却剂孔（10B）的开口。
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公开(公告)号：EP2913133A1
公开(公告)日：2015-09-02
申请号：EP13850824.7
申请日：2013-10-21
发明人： FUKATA Koji , AZEGAMI Takayuki
CPC分类号： B23C5/28 , B23C5/10 , B23C2210/202 , B23C2210/246 , B23C2210/285 , B23C2250/12 , Y10T407/14
摘要： The wear of a flank face of a long bottom blade of the tip of an end mill body is effectively minimized, and chips produced by the long bottom blade are smoothly discharged. Bottom blades (9) are formed at ridgelines where gashes (7) and tip flank faces (8) intersect, the gashes (7) being formed at the tips of a plurality of chip discharge grooves (4) that are formed in an end mill body (1). At least one of the bottom blades (9) serves as a long bottom blade (9A) that extends toward an inner peripheral side longer than the remaining bottom blades (9B, 9C). Coolant holes (10) are formed between the chip discharge grooves (4) within the end mill body (1). A coolant hole (10A) that is located between a chip discharge groove (4A) of a gash (7A) along which the long bottom blade (9A) is formed and a chip discharge groove (4C) that is located behind the chip discharge groove (4A) in a rotational direction (T) of the end mill is open to the tip clearance face (8A) of the long bottom blade (9A). A coolant hole (10B) which is located between the chip discharge groove (4A) of the gash (7A), along which the long bottom blade (9A) is formed, and a chip discharge groove (4B) that is located in front of the chip discharge groove (4A) in the rotational direction (T) of the end mill is open to the gash (7A) of the long bottom blade (9A).
摘要翻译： 端铣刀体的顶端的长底刀片的后刀面的磨损被有效地最小化，并且由长底刀片产生的切屑平滑地排出。 底部刀片（9）形成在其中气体（7）和尖端侧面（8）相交的脊线处，所述气体（7）形成在形成在端铣刀中的多个切屑排出槽（4）的顶端处 身体（1）。 底部叶片9中的至少一个用作长的底部叶片（9A），该底部叶片延伸到比其余的底部叶片（9B，9C）更长的内周侧。 冷却孔（10）形成在端铣刀体（1）内的切屑排出槽（4）之间。 位于形成有长底刀片（9A）的间隙（7A）的切屑排出槽（4A）之间的冷却剂孔（10A）和位于排屑槽后方的排屑槽（4C） （4A）在端铣刀的旋转方向（T）上与长底刀片（9A）的刀头间隙面（8A）相通。 位于所述沟槽（7A）的所述切屑排出槽（4A）之间的冷却剂孔（10B），形成有所述长底部叶片（9A）的排屑槽（4A）和位于 端铣刀的旋转方向（T）的切屑排出槽（4A）对长底刀片（9A）的间隙（7A）开放。
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公开(公告)号：EP3950194A1
公开(公告)日：2022-02-09
申请号：EP20778357.2
申请日：2020-03-25
摘要： The present invention provides a base material (1) for a hard sintered material having a multi-stage columnar shape having a central axis (C) and extending in an axial direction of the central axis (C). The base material (1) for the hard sintered material includes a smaller-diameter portion (2), a larger-diameter portion (3) having an outer diameter larger than an outer diameter of the smaller-diameter portion (2), a base material end surface (4) located between a one end portion in the axial direction of an outer peripheral surface of the larger-diameter portion (3) and the other end portion in the axial direction of the smaller-diameter portion (2), and facing toward the one end portion in the axial direction, and a first inclined portion (6) disposed in at least a portion in a circumferential direction of an annular corner portion (5) to which an outer peripheral surface of the larger-diameter portion (3) and the base material end surface (4) are connected. The first inclined portion (6) is located inward in a radial direction toward the one end portion in the axial direction.
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公开(公告)号：EP2913133B1
公开(公告)日：2017-04-26
申请号：EP13850824.7
申请日：2013-10-21
发明人： FUKATA Koji , AZEGAMI Takayuki
CPC分类号： B23C5/28 , B23C5/10 , B23C2210/202 , B23C2210/246 , B23C2210/285 , B23C2250/12 , Y10T407/14
摘要： The wear of a flank face of a long bottom blade of the tip of an end mill body is effectively minimized, and chips produced by the long bottom blade are smoothly discharged. Bottom blades (9) are formed at ridgelines where gashes (7) and tip flank faces (8) intersect, the gashes (7) being formed at the tips of a plurality of chip discharge grooves (4) that are formed in an end mill body (1). At least one of the bottom blades (9) serves as a long bottom blade (9A) that extends toward an inner peripheral side longer than the remaining bottom blades (9B, 9C). Coolant holes (10) are formed between the chip discharge grooves (4) within the end mill body (1). A coolant hole (10A) that is located between a chip discharge groove (4A) of a gash (7A) along which the long bottom blade (9A) is formed and a chip discharge groove (4C) that is located behind the chip discharge groove (4A) in a rotational direction (T) of the end mill is open to the tip clearance face (8A) of the long bottom blade (9A). A coolant hole (10B) which is located between the chip discharge groove (4A) of the gash (7A), along which the long bottom blade (9A) is formed, and a chip discharge groove (4B) that is located in front of the chip discharge groove (4A) in the rotational direction (T) of the end mill is open to the gash (7A) of the long bottom blade (9A).
摘要翻译： 立铣刀刀头尖端的长底刀刃侧面的磨损被有效地减小，由长刀刃刀刃产生的切屑顺利排出。 底刃（9）形成在齿条（7）和齿侧面（8）相交的棱线处，齿条（7）形成在多个排屑槽（4） 身体（1）。 底刀9中的至少一个作为比其余的底刀9B，9C更向内周侧延伸的长底刀9A。 在端铣刀主体（1）内的切屑排出槽（4）之间形成冷却孔（10）。 位于形成长底刀片（9A）的切口（7A）的切屑排出槽（4A）与位于切屑排出槽（4A）后方的切屑排出槽（4C）之间的冷却剂孔（10A） （4A）沿着所述立铣刀的旋转方向（T）向所述长底刀（9A）的顶端间隙面（8A）开口。 位于形成长底刀片（9A）的切口（7A）的切屑排出槽（4A）与排屑槽（4B）之间的切屑排出槽（4B）之间的冷却剂孔（10B） 在立铣刀的旋转方向（T）上的切屑排出槽（4A）向长底刀（9A）的切口（7A）开口。
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公开(公告)号：EP3069808A1
公开(公告)日：2016-09-21
申请号：EP14861371.4
申请日：2014-11-06
发明人： FUKATA Koji
IPC分类号： B23C5/10
CPC分类号： B23C5/10 , B23C5/003 , B23C2210/0414 , B23C2210/088 , B23C2210/202 , B23C2210/203 , B23C2210/486 , B23C2220/60
摘要： In a roughing end mill, a plurality of corner cutting edges (8) and a plurality of peripheral cutting edges (5) are formed at an outer periphery of a distal end portion of an end mill main body, a roughing part (9) having a waveform pattern of recesses and protrusions when viewed from the rotation direction of the end mill is formed in the peripheral cutting edge (5) of each of the chip discharge flutes (4), wherein a phase of the recesses and protrusions of the roughing part (9) of one chip discharge flute (4) is shifted with respect to that of the other chip discharge flute (4) adjacent to the one chip discharge flute (4) in the circumferential direction, a foremost protrusion (9A) of the roughing part (9) of one peripheral cutting edge (5) is located closer to a distal end of the end mill main body than those of the other peripheral cutting edges (5), a peak (9C) in a radial direction of the foremost protrusion (9A) of the one peripheral cutting edge (5) is aligned with another peak (8A) in the radial direction of the corner cutting edge (8) adjacent to the one peripheral cutting edge (5), or connected to the another peak (8A) in the radial direction of the corner cutting edge (8) by a straight portion (10) extending in a linear manner when viewed from the rotation direction of the end mill, and a peak (9C) in the radial direction of a foremost protrusion (9A) of the roughing part (9) of each of the other peripheral cutting edges (5) is connected to another peak (8A) in the radial direction of the corner cutting edge (8) adjacent to the other peripheral cutting edge (5) by another straight portion (10) extending in a linear manner when viewed from the rotation direction of the end mill.
摘要翻译： 在粗加工端铣刀中，在立铣刀主体的前端部的外周形成有多个角刃（8）和多个外周刃（5），粗加工部（9）具有： 当从端铣刀的旋转方向观察时，在每个切屑排出槽（4）的外周切削刃（5）中形成凹槽和凸起的波形图案，其中粗加工部件的凹槽和凸起的相位 一个切屑排出槽（4）的切削刃（9）相对于与一个切屑排出槽（4）相邻的另一个切屑排出槽（4）在圆周方向上偏移，最初的粗加工突起（9A） 一个外周刃（5）的部分（9）位于比其他外周刃（5）更靠近端铣刀主体的远端的位置，在最前方突起的径向方向上的峰（9C） 所述一个外围切削刃（5）的所述第一端（9A）与另一个峰对齐 （8）的径向方向上与所述一个外周切削刃（5）相邻或与所述角切削刃（8）的径向方向上的另一个尖峰（8A）通过直线（8A） 在从立铣刀的旋转方向观察时以直线状延伸的部分（10）和其他周边部的粗加工部（9）的最前部的突起（9A）的径向的顶点（9C） 切削刃5通过从另一个直线部分（10）观察时沿直角方式延伸的另一直线部分（10）与在另一个外围切削刃（5）附近的拐角切削刃（8）的径向方向上的另一个峰部 立铣刀的旋转方向。
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