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    • 1. 发明申请
    • ANTI-ABRASIVE LAYER
    • 磨损保护
    • WO2005038089A3
    • 2005-09-01
    • PCT/DE2004002308
    • 2004-10-13
    • GUEHRING JOERGWEBER FRANK-R
    • WEBER FRANK-R
    • C22C27/06C23C30/00C23C14/06
    • C23C30/005C22C27/06C23C30/00Y02T50/67Y10T428/24975Y10T428/265
    • The invention relates to a hard anti-abrasive layer for tools, especially for cutting tools, such as e.g. rotating shank tools, such as drills, countersinks and counterbores, screw taps, reamers, etc. for cutting metals. The anti-abrasive layers are hard material layers having a thickness of approximately 1 to 10 mu m and are preferably deposited by physical vapor deposition (PVD). The anti-abrasive layer substantially comprises nitrides with the metal component Cr, Ti and Al and a low percentage of elements ( kappa ) for the purpose of grain diminution, with a Cr percentage - in relation to all metal atoms in the entire layer - of more than 65 %, preferably 66 to 70 %, an Al percentage of 15 to 23 % and a Ti percentage of 10 to 15 %.
    • 描述了用于工具的硬质磨损保护层,特别是用于切削工具的硬质磨损保护层, 用于金属切削的旋转刀柄工具,例如钻头,埋头孔,丝锥,铰刀等。 耐磨层为约1至10克厚的硬质材料层,其优选通过PVD(物理气相沉积)在工具表面上沉积。 磨损保护层基本上由与所述金属成分的Cr,Ti和Al和元件(K)用于晶粒细化的一个很小的比例,与氮化物 - 超过65%Cr含量,优选66 - 每相对于所有金属原子在整个层的情况下在 至70%,Al含量为15至23%,Ti含量为10至15%。
    • 4. 发明申请
    • SINTERED BLANKS HAVING COILED COOLING CHANNELS
    • 用连续冷却通道烧结BLANKS
    • WO2004056513A3
    • 2005-01-06
    • PCT/DE0304272
    • 2003-12-18
    • GUEHRING JOERGKAROS HORST
    • KAROS HORST
    • B21C23/14B22F3/20B22F5/10B23B51/04B23B51/06B23P15/32
    • B21C23/147B22F3/20B22F5/10B22F2005/001B22F2005/004B23B51/0493B23B51/06B23P15/32
    • The invention relates to an extrusion press method for the continuous production of fully cylindrical sintered blanks (24) comprising at least one internal, spirally extending channel (3) having a predetermined cross-section, wherein the plastic material (12) forming the blank (24) is pressed out of the mouth of a nozzle (DZ) of an extrusion press (10) on the outlet side thereof in the form of a substantially circular cylindrical, preferably internally smooth pipe. The plastic material which exits from the mouthpiece of the nozzle (DM) in a substantially twist-free manner flows along the axis of at least one spirally twisted pin (400, 420) which is maintained in a stable position on a gudgeon of the nozzle (18). Said pin protrudes at least sectionally into the mouthpiece of the nozzle (DM). According to the invention, high-precision fully cylindrical sintered blanks can be produced even if the geometry of the cooling channel is difficult to construct. The method is characterized in that the pin (400, 420) does not rotate, the plastic material (12) in the mouth of the nozzle (DM) is displaced in a twisted flow corresponding to the spiral shape of the pin (400, 420) and the rotation movement of the plastic material (12) is supported by a rotationally driven section (140) of the mouth of the nozzle (DM), which is engaged on the outer periphery of the material such that the pin (400, 420) is essentially not subjected to any bending deformation.
    • 描述了一种用于连续生产全柱面烧结坯件(24)与至少一个内部螺旋形延伸的通道(3)规定的横截面,其中,所述坯料(24)形成,塑料挤出的喷嘴口(DM)的质量(12)模具的挤出过程 (10)在所述出口的形式被压是大致圆柱形,优选内部光滑管出来。 的塑料物质,其基本上扭转 - 自由,所述喷嘴口部件(DM)时,而在所述喷嘴口流动的至少螺旋扭曲一个沿喷嘴心轴(18)在位置上保持销(400,420)的轴线至少部分地(DM) 突出。 因此,可以在难以产生充分圆柱状烧结毛坯以创建冷却高精度信道的几何结构,该方法的特征在于,所述销(400,420)不会在螺旋形的一个旋转时,在所述喷嘴口(DM)的塑料的质量(12) 销相应的(400,420),漩涡流被抵消,和塑料的质量(12)的通过对质量的外周接合,旋转驱动的喷嘴口(DM)的一部分(140)的旋转以这样的方式被支撑,所述销(400 ,420)是基本上不经受弯曲变形。
    • 6. 发明申请
    • COOLING CHANNEL GEOMETRY
    • 冷却通道几何
    • WO2004056519A3
    • 2004-09-16
    • PCT/DE0304276
    • 2003-12-18
    • GUEHRING JOERGKLEINER GILBERT
    • KLEINER GILBERT
    • B23B51/06
    • B23B51/06Y10T407/14Y10T408/455
    • A rotationally driven machining tool, especially a drill, having a nominal drill diameter (D) and comprising at least one machining groove (1) and at least one web (2). A main cutting edge (4) and an inner cooling channel (3) are formed on each web (2). Said cooling channel has a continuously extending cross-sectional contour (30; 31; 32; 30X) enclosing an imaginary circle (K) with a center point (M). The cross-­sectional contour comprises one, preferably comprises two, maximum curvature value(s) whose distance to the drill axis (A) is greater in the direction of a line between the center point (M) and the drill axis (A) or equal to the distance of the center point (M) to the drill axis (A). Minimum wall thicknesses (dAUX, dSPX, dSFX) exist between the inner cooling channel (3) and the outer periphery of the drill (7), between the inner cooling channel (3) and the machined surface (5) and between the inner cooling channel (3) and the machining surface (6), ranging from a lower threshold (Wmin,1; Wmin, 2,; Wmin,3) and to an upper threshold ( Wmax,1;. Wmax,2; Wmax,3). The lower threshold is 0.08 x D for D 1 mm (Wmin,1) and the upper threshold is 0.35 x D for D 6mm (Wmax,1). The radius (R1;R1';R1";R1X) at the highest amount of curvature of the cross section contour (30;31;32;30X) of the internal cooling channel (3) corresponds to 0.35 - 0.9 of the radius (R0) of the circle (K).
    • 旋转驱动切削工具,特别是钻头,用钻头标称直径(D),至少一个芯片槽(1)和至少一个腹板(2),其中,在每个肋(2)具有一主切削刃(4)和内部冷却通道(3)的形成 连续地延伸的横截面轮廓(30; 31; 32; 30X)具有。 的横截面轮廓(30; 31; 32; 30X)的内部冷却通道(3)包括具有中心(M)接触的假想圆(K)和具有至少一个,优选两个,曲率最大值,其距离与钻孔轴线(A)在 是中心(M)和所述钻轴之间的直线的方向(a)大于或等于所述中心点(M)的距离,以钻头轴(A)。 该内部冷却通道之间的最小壁厚(DAUX,DSPX DSFX)(3)和钻外周(7,7“),所述内部冷却通道(3)和前刀面(5)之间和所述内部冷却通道(3)之间和切割侧面(6)是在一个下限之间的范围内 (WMIN,1; WMIN,2; WMIN,3; WMIN,4)和上限(WMAX,1; WMAX,2; WMAX,3),其中,所述下限是关于d 0.08 x深<= 1mm且 0.08毫米为D>1毫米是(WMIN,1),并且上限是关于d 0.35 x深<= 6毫米,0.4 x深 - 0.30毫米为D> 6毫米(W(最大值),升) , 半径(R1; RL”,R1“; R 1 X)的横截面轮廓的最强的曲率(30; 31; 32; 30X)的内部冷却通道(3)对应于半径为0.35〜0.9倍(RO) 的圆(K)。