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公开(公告)号：EP2073950B1
公开(公告)日：2013-11-20
申请号：EP07844153.2
申请日：2007-10-11
IPC分类号： B23G5/18
CPC分类号： B23G5/06 , B23G2200/26 , B23G2200/48 , B23G2225/28 , B23G2225/32 , B23G2225/56 , B23G2225/60 , B23P15/52 , Y10T408/9048 , Y10T408/906 , Y10T408/9097
摘要： A cutting tool that includes an elongate body that has a forward end and a rearward end. The elongate body has a fluted portion that beginning near and extends in a rearward direction from the forward end. The fluted portion has a flute that defines a cutting edge. The flute presents a concave cutting face wherein the concave cutting face is defined by a first radius. The flute further presents a concave core surface adjacent to the concave cutting face wherein the concave core surface is defined by a second radius. The flute presents a convex heel surface adjacent to the concave core surface wherein the convex heel surface is defined by a fourth radius.
摘要翻译： 一种切割工具，其包括具有前端和后端的细长主体。 细长主体具有从前端开始靠近并且从前端向后方延伸的槽纹部分。 凹槽部分具有限定切割边缘的凹槽。 凹槽具有凹形切割面，其中凹形切割面由第一半径限定。 凹槽进一步呈现与凹形切割面相邻的凹形芯表面，其中凹形芯表面由第二半径限定。 凹槽呈现与凹形芯表面相邻的凸起脚跟表面，其中凸起脚跟表面由第四半径限定。
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公开(公告)号：EP1816358A1
公开(公告)日：2007-08-08
申请号：EP05805236.6
申请日：2005-10-27
申请人： Yamawa Mfg. Co., Ltd. , Yamawa Taps Co., Ltd. , Yamawa Precision Co., Ltd. , Yamawa Engineering Co., Ltd.
摘要： A shape of a screw for fastening thin-sheets or thin-walled parts is characterized in that a value of ratio (P/D) of a pitch (P) to each of nominal diameters (D) of coarse thread in the shape of screw thread is reduced as compared to values of ratio of pitches to a corresponding nominal diameter of coarse thread in known kinds of screw thread standard, and the multiple number of thread start is set to 2 or more. Thus, for the thin-sheets and thin-walled parts in which three engaging ridges of screw threads cannot be secured when current metric coarse thread screw is used, the shape of the screw thread advantageous in strength and excellent in loose torque after vibration can be provided, since screw fastening is stabilized more than a case in which the metric coarse thread screws are used.
摘要翻译： 用于紧固薄板或薄壁部件的螺钉的形状的特征在于，螺距形式的粗螺纹的标称直径（D）与螺距的每个公称直径（D）的间距（P）的比值（P / D） 与已知种类的螺纹标准中的螺距比与粗螺纹的相应公称直径的值相比，螺纹减少，多次螺纹起始设定为2以上。 因此，对于使用当前的公制粗螺纹螺钉时，不能确保螺纹的三个接合脊的薄板和薄壁部件，具有强度和振动后的松散扭矩优异的螺纹形状可以是 因为螺钉紧固比使用公制粗螺纹螺钉的情况更稳定。
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公开(公告)号：EP1611983A4
公开(公告)日：2007-04-04
申请号：EP04716346
申请日：2004-03-02
申请人： YAMAWA MFG CO LTD , KENNAMETAL INC
发明人： AKAKI S , MITSUI M , HENDERER WILLARD E
IPC分类号： B23G5/06
CPC分类号： B23G5/06 , Y10T408/90467 , Y10T408/906
摘要： A high-speed tap (1) for cutting a female screw by cutting edges (E) of a screw portion (2) fed in synchronous with the rotation of a machine tool. The high-speed tap is characterized in that chamfers (CF) are provided at a leading portion (2a) of the screw portion (2). The chamfers (CF) start at a cutting edge (E) and are located along ridges (R) between a crest surface (2e) and flanks, or a following flank (2c) and a leading flank (2d). This structure enables the shape of the edges of the tap leading portion to be stably maintained and high-speed, smooth female screw cutting with high accuracy, and provides a tap with long life.
摘要翻译： 一种高速丝锥（1），用于通过切削与机床的旋转同步进给的螺纹部分（2）的边缘（E）切削内螺纹。 高速丝锥的特征在于，在螺纹部（2）的前端部（2a）设置有倒角部（CF）。 倒角（CF）从切削刃（E）开始，并沿着脊顶面（2e）和侧面或后续侧面（2c）和前侧面（2d）之间的脊（R）定位。 这种结构使得丝锥引导部分的边缘的形状能够被稳定地保持，并且高速，平滑的内螺纹切割具有高精度，并且提供了长寿命的丝锥。
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公开(公告)号：EP1611983A8
公开(公告)日：2006-05-10
申请号：EP04716346.4
申请日：2004-03-02
IPC分类号： B23G5/06
CPC分类号： B23G5/06 , Y10T408/90467 , Y10T408/906
摘要： A high-speed forming tap (1) for cutting and forming a female screw by cutting edges (E) of a screw portion (2) fed in synchronous with the rotation of a machine tool. The high-speed forming tap is characterized in that chamfers (CF) are provided at a bevel lead (2a) of the screw part (2). The chamfers (CF) start from the cutting edge (E) and are provided along ridgelines (R) between a crest face (2e) and flanks, or a following flank (2c) and a leading flank (2d). This structure enables the shape of the edges of the tap leading portion to be stably maintained and high-speed, smooth female screw cutting with high accuracy, and provides a tap with long life.
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公开(公告)号：EP1816358B1
公开(公告)日：2013-09-04
申请号：EP05805236.6
申请日：2005-10-27
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公开(公告)号：EP2073950A4
公开(公告)日：2011-01-26
申请号：EP07844153
申请日：2007-10-11
申请人： KENNAMETAL INC , YAMAWA MFG CO LTD
IPC分类号： B23G5/18
CPC分类号： B23G5/06 , B23G2200/26 , B23G2200/48 , B23G2225/28 , B23G2225/32 , B23G2225/56 , B23G2225/60 , B23P15/52 , Y10T408/9048 , Y10T408/906 , Y10T408/9097
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公开(公告)号：EP2073950A2
公开(公告)日：2009-07-01
申请号：EP07844153.2
申请日：2007-10-11
IPC分类号： B23G5/18
CPC分类号： B23G5/06 , B23G2200/26 , B23G2200/48 , B23G2225/28 , B23G2225/32 , B23G2225/56 , B23G2225/60 , B23P15/52 , Y10T408/9048 , Y10T408/906 , Y10T408/9097
摘要： A cutting tool that includes an elongate body (22) that has a forward end (26) and a rearward end (24). The elongate body (22) has a fluted portion (30) that beginning near and extends in a rearward direction from the forward end (26). The fluted portion (30) has a flute (36, 38, 40, 42) that defines a cutting edge. The flute presents a concave cutting face (60) wherein the concave cutting face (60) is defined by a first radius (R1). The flute further presents a concave core surface (66) adjacent to the concave cutting face (60) wherein the concave core surface (66) is defined by a second radius (R2). The flute presents a convex heel surface (64) adjacent to the concave core surface (66) wherein the convex heel surface (64) is defined by a fourth radius (R4).
摘要翻译： 一种切割工具，其包括具有前端（26）和后端（24）的细长主体（22）。 细长本体（22）具有开口部分（30），该部分从前端（26）开始靠近并且在向后方向上延伸。 凹槽部分（30）具有限定切割边缘的凹槽（36,38,40,42）。 凹槽具有凹形切割面（60），其中凹形切割面（60）由第一半径（R1）限定。 凹槽进一步呈现邻近凹切割面（60）的凹芯表面（66），其中凹芯表面（66）由第二半径（R2）限定。 凹槽具有与凹形芯表面（66）相邻的凸起脚跟表面（64），其中凸起脚跟表面（64）由第四半径（R4）限定。
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公开(公告)号：EP1597064A4
公开(公告)日：2008-06-25
申请号：EP04712337
申请日：2004-02-18
申请人： KENNAMETAL INC , YAMAWA MFG CO LTD
IPC分类号： B22F9/00 , B23B51/00 , B23D77/00 , B23G5/06 , B23P15/52 , B27G15/00 , B32B9/00 , B32B9/04 , B32B15/04 , B32B18/00 , B32B19/00 , C22C5/00 , C22C29/00 , C23C30/00
CPC分类号： C23C30/005 , B23G5/06 , B23G2200/26 , B23G2225/36 , B23G2225/48 , B23G2225/56 , B23G2225/60 , B23P15/52 , Y10T428/30
摘要： A coated carbide tap comprises a substrate consisting of tungsten carbide cemented with 12 to 16% by weight cobalt with additions of small amounts of transition metal carbides added to restrain grain growth, and may also contain low levels of impurities that might be picked up during processing. The substrate is coated with a layer of metal nitrides, carbides, carbonitrides, borides and/or oxides, the metal being chosen from one or more of the following: aluminum, silicon and the transition metals from Groups IVa, Va, and VIa of the Periodic Chart. The coating may comprise a monolayer and/or alternating layers optionally with varying chemical composition. To reduce friction, a top outer layer comprised of molybdenum disulphide; molybdenum disulphide and transition metals, or any combination thereof; carbon; carbon and transition metal carbides, or any combination thereof; carbon and a transition metal, or any combination thereof; and/or carbon nitride may be either co-deposited as a single layer or deposited in multiple or alternating layers to the coating. The coated carbide tap of the invention can be used at cutting speeds at least three times faster than conventional taps without chipping or breaking the tap.
摘要翻译： 涂覆的硬质合金龙头包括由碳化钨组成的基底，该碳化钨与12至16重量％的钴结合，并加入少量的过渡金属碳化物以抑制晶粒生长，并且还可含有在加工过程中可能被拾取的低含量杂质 。 基底涂覆有一层金属氮化物，碳化物，碳氮化物，硼化物和/或氧化物，该金属选自以下一种或多种：铝，硅和来自第Ⅳa族，Ⅴa族和Ⅵa族的过渡金属 定期图。 涂层可以包括任选具有不同化学组成的单层和/或交替层。 为了减少摩擦，由二硫化钼组成的顶部外层; 二硫化钼和过渡金属，或其任何组合; 碳; 碳和过渡金属碳化物，或其任何组合; 碳和过渡金属，或其任何组合; 和/或碳氮化物可以共沉积成单层或以多层或交替层沉积到涂层上。 本发明的涂覆硬质合金丝锥的切割速度可以比传统的丝锥快至少三倍，而不会破裂或破碎龙头。
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公开(公告)号：EP2073966A4
公开(公告)日：2011-01-26
申请号：EP07853951
申请日：2007-10-11
申请人： KENNAMETAL INC , YAMAWA MFG CO LTD
IPC分类号： B27G15/00
CPC分类号： B23G5/06 , B23G2200/04 , B23G2200/26 , B23G2225/28 , B23G2225/32 , B23G2225/52 , B23G2225/56 , B23G2225/60 , B23P15/52 , Y10T408/9046 , Y10T408/9048
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公开(公告)号：EP1816358A4
公开(公告)日：2010-09-15
申请号：EP05805236
申请日：2005-10-27
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