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1. 发明授权

EP0361435B1 Ball end mill 失效
标题翻译：球头铣刀
公开(公告)号：EP0361435B1
公开(公告)日：1995-03-29
申请号：EP89117842.8
申请日：1989-09-27
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Tsujimura, Osamu c/o Tokyo-Seisakucho , Nakayama, Masaaki c/o Tokyo-Seisakucho , Okawa, Masayuki c/o Tokyo-Seisakucho
IPC分类号： B23C5/10 , B23C5/22
CPC分类号： B23C5/1045 , B23C5/1027 , B23C5/2221 , B23C2200/123 , B23C2200/125 , B23C2200/201 , B23C2200/203 , Y10S408/713 , Y10T407/1924 , Y10T407/1948 , Y10T408/905 , Y10T408/909

2. 发明公开

EP0361435A3 Ball end mill 失效
标题翻译：球头铣刀
公开(公告)号：EP0361435A3
公开(公告)日：1991-03-13
申请号：EP89117842.8
申请日：1989-09-27
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Tsujimura, Osamu c/o Tokyo-Seisakucho , Nakayama, Masaaki c/o Tokyo-Seisakucho , Okawa, Masayuki c/o Tokyo-Seisakucho
IPC分类号： B23C5/10 , B23C5/22
CPC分类号： B23C5/1045 , B23C5/1027 , B23C5/2221 , B23C2200/123 , B23C2200/125 , B23C2200/201 , B23C2200/203 , Y10S408/713 , Y10T407/1924 , Y10T407/1948 , Y10T408/905 , Y10T408/909
摘要： In a ball end mill, a rotational locus is described by cutting edges (12a, 13a) of respective throw-away tips (12, 13) mounted to a tool body (10). The cutting edge (12a) of one of the tips (12) and the cutting edge (13a) of the adjacent tip (13) overlap with each other, and the center of the overlapping portion is located at a position that is substantially 45° from a forward end of the cutting edge (12a) along a 1/4 arc of the rotational locus therefrom. The overlapping length (ℓ) is 1/4 to 1/3 of a diameter (D) of the rotational locus in an arcuate length thereof. A planar section is formed at a side surface of at least one of the tips (12), which is located at a forward end of the tool body (10). The side surface is located adjacent a forward end of the cutting edge (12a). A planar surface is formed at at least one of the tip Pockets formed in the tool body (10), at a position facing toward the planar section. The planar surface is subject to a radial cutting force acting from the throw-away tip (12) having the planar section. The planar section is abutted against the planar surface.

3. 发明公开

EP0361435A2 Ball end mill 失效
标题翻译： Kugelstirnfräser。
公开(公告)号：EP0361435A2
公开(公告)日：1990-04-04
申请号：EP89117842.8
申请日：1989-09-27
申请人： MITSUBISHI MATERIALS CORPORATION
发明人： Tsujimura, Osamu c/o Tokyo-Seisakucho , Nakayama, Masaaki c/o Tokyo-Seisakucho , Okawa, Masayuki c/o Tokyo-Seisakucho
IPC分类号： B23C5/10 , B23C5/22
CPC分类号： B23C5/1045 , B23C5/1027 , B23C5/2221 , B23C2200/123 , B23C2200/125 , B23C2200/201 , B23C2200/203 , Y10S408/713 , Y10T407/1924 , Y10T407/1948 , Y10T408/905 , Y10T408/909
摘要： In a ball end mill, a rotational locus is described by cutting edges (12a, 13a) of respective throw-away tips (12, 13) mounted to a tool body (10). The cutting edge (12a) of one of the tips (12) and the cutting edge (13a) of the adjacent tip (13) overlap with each other, and the center of the overlapping portion is located at a position that is substantially 45° from a forward end of the cutting edge (12a) along a 1/4 arc of the rotational locus therefrom. The overlapping length (ℓ) is 1/4 to 1/3 of a diameter (D) of the rotational locus in an arcuate length thereof. A planar section is formed at a side surface of at least one of the tips (12), which is located at a forward end of the tool body (10). The side surface is located adjacent a forward end of the cutting edge (12a). A planar surface is formed at at least one of the tip Pockets formed in the tool body (10), at a position facing toward the planar section. The planar surface is subject to a radial cutting force acting from the throw-away tip (12) having the planar section. The planar section is abutted against the planar surface.
摘要翻译：在球头立铣刀中，旋转轨迹由安装在工具本体（10）上的各个丢弃尖端（12,13）的切削刃（12a，13a）描述。相邻顶端（13）的尖端（12）和切割刃（13a）中的一个的切割刃（12a）彼此重叠，并且重叠部分的中心位于大致45度的位置从切削刃（12a）的前端沿着其旋转轨迹的1/4弧。重叠长度（l）为弧形长度的旋转轨迹的直径（D）的1/4至1/3。平面部分形成在至少一个尖端（12）的位于工具主体（10）的前端的侧表面上。侧表面邻近切削刃（12a）的前端定位。在面向平面部的位置上，在形成于工具体（10）中的至少一个尖端口部形成有平面。平面表面受到从具有平面部分的丢弃尖端（12）作用的径向切割力。平面部分抵靠平面。

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