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    MULTI-PIECE DRILL HEAD AND DRILL INCLUDING THE SAME
    1.
    发明公开
    MULTI-PIECE DRILL HEAD AND DRILL INCLUDING THE SAME 审中-公开
    BOHRKOPF BHRTEILIGER BOHRER DAMIT

    公开(公告)号：EP2593258A1

    公开(公告)日：2013-05-22

    申请号：EP10737160.1

    申请日：2010-07-15

    申请人： TDY Industries, Inc.

    发明人： FANG, Daniel, X. ,  DUFOUR, Jean-Luc ,  WILLS, David J.

    IPC分类号： B23B51/00 ,  B23B51/04

    CPC分类号： B23B51/0009 ,  B23B51/048 ,  B23B2251/085 ,  B23B2251/48 ,  B23B2251/50 ,  Y10S408/713 ,  Y10T408/78 ,  Y10T408/892 ,  Y10T408/8923 ,  Y10T408/9065 ,  Y10T408/909 ,  Y10T408/9098

    摘要： One non-limiting aspect of the present disclosure is directed to a multi-piece spade drill head for a spade drill, wherein the spade drill includes an elongate body portion and a cutting portion removably secured to an end of the body portion. The multi-piece spade drill head includes at least two insert pieces, each piece including a cutting edge. The at least two insert pieces are configured to be removably secured to the body portion of the spade drill adjacent one another and with the cutting edges of the insert pieces aligned to together form a cutting edge on an end of the spade drill.

    摘要翻译： 本公开的一个非限制性方面涉及用于铲钻的多件式铲钻头，其中铲形钻具包括细长主体部分和可移除地固定到主体部分的端部的切割部分。 多件式铲钻头包括至少两个插入件，每件包括切削刃。 所述至少两个插入件构造成可拆卸地固定到所述铲形钻的主体部分，所述主体部分彼此相邻并且所述插入件的切割边缘对齐在一起，在所述铲形钻的端部上形成切割边缘。

    DRILL INSERT WITH CONTROLLED CONTACT CLEARANCE
    4.
    发明公开
    DRILL INSERT WITH CONTROLLED CONTACT CLEARANCE 审中-公开
    钻井作业与控制接触距离

    公开(公告)号：EP1610918A2

    公开(公告)日：2006-01-04

    申请号：EP04719801.5

    申请日：2004-03-11

    申请人： Allied Machine & Engineering Corp.

    发明人： KRAEMER, Rolf, H.

    IPC分类号： B23B51/02

    CPC分类号： B23B51/0009 ,  B23B2200/126 ,  B23B2251/48 ,  B23B2251/50 ,  Y10S408/713 ,  Y10T408/909 ,  Y10T408/9095

    摘要： A cutting tool insert having a controlled contact clearance behind the cutting edge which limits flank wear and allows more coolant near the cutting edge further allowing an increase in surface speed, feed rates, and tool life. The controlled contact clearance surface provides a first wear zone and a second wear zone, the first wear zone generated during operation of the drill insert allows the flank wear distance to grow from zero to the distance from the cutting edge to the controlled contact clearance surface, the second wear zone keeps the flank wear distance substantially constant until the controlled contact clearance surface is substantially worn away.

    THROW-AWAY DRILL
    9.
    发明公开
    THROW-AWAY DRILL 失效
    BOHRER MIT WEGWERFEINSATZ。

    公开(公告)号：EP0460237A1

    公开(公告)日：1991-12-11

    申请号：EP91900955.5

    申请日：1990-12-21

    申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

    发明人： NOGUCHI, Kazuo, c/o Itami Works of Sumitomo ,  MORI, Yoshikatsu, c/o Itami Works of Sumitomo ,  KITAGAWA, Nobuyuki, c/o Itami Works of Sumitomo ,  NOMURA, Toshio, c/o Itami Works of Sumitomo ,  ISOBE, Kazutaka, c/o Itami Works of Sumitomo

    IPC分类号： B23B51/00

    CPC分类号： B23B51/0009 ,  B23B27/141 ,  B23B51/02 ,  B23B51/048 ,  B23B2200/081 ,  B23B2205/02 ,  B23B2251/02 ,  B23B2251/48 ,  B23B2251/50 ,  Y10S408/713 ,  Y10S408/714 ,  Y10T407/27 ,  Y10T408/78 ,  Y10T408/901

    摘要： A throw-away drill which includes a cutting edge portion (31) for cutting a work and a shank portion for fitting to a predetermined position of a cutting tool, and in which the cutting edge portion is detachably and mechanically coupled to the shank portion (32). The cutting edge portion (31) and the shank portion (32) have complementary fitting portions and slits are formed in either one of the cutting edge portion (31) and the shank portion (32). When the cutting edge portion (31) and the shank portion (32) are fitted to each other, the opposed surfaces to these slits (34, 39) move away from each other and undergo elastic deformation, so that the resulting elastic force fixes the cutting edge portion (31) to the shank portion (32). Accordingly, screwing or the like is not necessary and the cutting edge portion (31) and the shank portion (32) can be coupled by mere press-in operation. Accordingly, working efficiency can be improved during the assembly process. A surface coated ultra-hard alloy is used as the material of the cutting edge portion (31), and steel as the material of the shank portion (32). Therefore, the cutting edge is excellent in wear resistance, adhesion resistance and heat crack resistance and the shank portion (32) a relatively low-coat throw-away drill.

    摘要翻译： 抛弃钻头包括用于切割工件和柄部分以用于装配到切割工具的预定位置的切割边缘部分（31），并且其中切割边缘部分可拆卸地和机械地联接到柄部分（32） ）。 切削刃部和柄部具有互补的配合部，狭缝形成在切削刃部和柄部中的任意一个上。 当切割边缘部分和柄部彼此嵌合时，这些狭缝（34,39）的相对表面彼此远离并且发生弹性变形，使得所产生的弹力将切割边缘部分固定到柄部 一部分。 因此，不需要螺纹连接等，仅通过压入操作即可将切削刃部和柄部联接。 因此，在组装过程中可以提高工作效率。 使用表面涂覆的超硬合金作为切削刃部分的材料，以及作为柄部的材料的钢。 因此，切削刃具有优异的耐磨性，耐粘附性和耐热裂纹性，并且刀柄部分具有相对较低的涂层抛掷钻头。 @（56pp Dwg.No.6 / 23）@。

    Throw-away tipped drill, throw-away tip, and drill main body
    10.
    发明公开
    Throw-away tipped drill, throw-away tip, and drill main body 审中-公开
    SchneideinsatzfürBohrer und Bohrer

    公开(公告)号：EP2343145A1

    公开(公告)日：2011-07-13

    申请号：EP10180003.5

    申请日：2004-03-04

    申请人： MITSUBISHI MATERIALS CORPORATION

    发明人： Takiguchi, Syoji

    IPC分类号： B23B51/04 ,  B23B51/02

    CPC分类号： B23B51/02 ,  B23B51/0009 ,  B23B51/048 ,  B23B2251/02 ,  B23B2251/50 ,  B23B2260/016 ,  B23B2260/132 ,  B23B2270/08 ,  Y10S408/713 ,  Y10T408/909 ,  Y10T408/9097 ,  Y10T408/90993

    摘要： A throw-away tipped drill, in which: a pair of chip disposal grooves are formed on the outer peripheral surface of a drill main body which rotates around an axial line, At an end portion of said drill main body, a concave groove shaped tip attachment seat is formed which, along with connecting to said pair of chip disposal grooves, also opens at an end surface of said drill main body. To said tip attachment seat, a throw-away tip of approximately a flat plate shape, upon an edge of which a pair of cutting edges are formed, is fitted by the pair of internal side surfaces of said tip attachment seat being mutually brought towards one another by a clamp bolt which is screwed into an end portion of said drill main body so that it crosses said tip attachment seat.
    Along with a pair of outer side surfaces of said throw-away tip respectively confronting a pair of internal side surfaces of said tip attachment seat, a pair of raked surfaces, which are portions of said pair of outer side surfaces of said throw-away tip which face towards the forward rotational direction of the drill, respectively, open into said pair of chip disposal grooves.
    By forming concave portions on the internal side surfaces of said tip attachment seat which do not contact against the outer side surfaces of said throw-away tip, pressure portions are created and are positioned more to the rearward direction of the rotational direction of the drill than the central axial line of said clamp bolt. When said clamp bolt is tightened up, said pressure portions press against the outer side surfaces of said throw-away tipped drill.

    摘要翻译： 一种抛弃式钻头，其中：在钻头主体的围绕轴线旋转的外周面上形成有一对切屑处理槽。在所述钻头主体的端部，形成凹槽形的尖端 形成附接座，其连同所述一对芯片处理槽一起也在所述钻头主体的端面处开口。 对于所述尖端附接座，在其边缘形成有一对切削刃的大致平板形状的扔掉的尖端由所述尖端安装座的一对内侧面相互连接， 另一个通过夹紧螺栓拧入到所述钻头主体的端部，使得其穿过所述末端附接座。 随着分别面对所述尖端安装座的一对内侧表面的所述甩掉尖端的一对外侧表面，一对倾斜表面是所述扔掉尖端的所述一对外侧表面的部分 其朝向钻头的正向旋转方向分别面向所述一对切屑排出槽中。 通过在所述尖端安装座的内侧表面上形成凹部，其不与所述抛弃尖端的外侧表面接触，产生压力部分并且更靠近钻头旋转方向的后方定位， 所述夹紧螺栓的中心轴线。 当所述夹紧螺栓拧紧时，所述压力部分压靠所述抛弃尖头钻头的外侧表面。