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    CUTTING PLATE AND METHOD AND COMPRESSION MOLD FOR PRODUCING A GREEN BODY OF THE CUTTING PLATE
    41.
    发明公开
    CUTTING PLATE AND METHOD AND COMPRESSION MOLD FOR PRODUCING A GREEN BODY OF THE CUTTING PLATE 审中-公开

    公开(公告)号：EP3403817A1

    公开(公告)日：2018-11-21

    申请号：EP17171734.1

    申请日：2017-05-18

    申请人： WALTER AG

    发明人： BOEHNKE, David

    IPC分类号： B30B7/04 ,  B22F3/03 ,  B22F5/10 ,  B23C5/20 ,  B30B15/02 ,  B30B11/00

    CPC分类号： B30B11/007 ,  B22F3/03 ,  B22F5/10 ,  B23B51/0009 ,  B23C5/207 ,  B30B7/04 ,  B30B15/022

    摘要： The present invention is related to a method of producing a cutting plate made of hard metal, in particular of sintered carbide, by multiaxial pressing a powder mixture of a hard metal component and a binder to form a green body (10), followed by sintering the green body, which after pressing comprises two substantially parallel main surfaces (1 a, 1 b) and a peripheral edge surface (2, 3a, 3b) extending between the main surfaces at the periphery thereof and connecting the same, which main surfaces include depressions (4a,b; 5a,b) extending at least partly to the edge surface such that cutting edges (6a, 6b) are formed at the intersection of the bottom of said depressions and at least a part (3a, 3b) of said edge surface wherein the powder mixture is supplied to a compression mold comprising a cavity which is defined by side punches moveable along at least a first direction for forming said edge surfaces and at least one heading punch moveable substantially perpendicular to the first direction for compacting the powder mixture to form a cutting plate green body, wherein a heading tool is used which is moveable perpendicular to and towards said main surfaces, characterized in that the heading tool comprises two parts, one of which is a main punch (23,a,b) and the other being an independently moveable form punch (24a,b), wherein in a first pressing step the form punch (24a,b) is moved towards the powder mixture to form a preliminarily compressed portion of the green body adjacent the edge surface (3) and including an area designated to become an area of a minimal final thickness of the green body, while in a second step the main punch (23a,b) and the form punch (24a,b) are both moved towards their final position to provide the green body with its final dimensions of the parallel main surfaces (1 a, 1 b) including the depressions (4a,b, 5a,b). The invention further discloses a corresponding compression tool and a cutting plate.

    OUTIL DE COUPE PLAT ET PORTE-OUTIL ASSOCIE
    44.
    发明公开
    OUTIL DE COUPE PLAT ET PORTE-OUTIL ASSOCIE 审中-公开
    平面刀具和相关刀柄

    公开(公告)号：EP2328704A1

    公开(公告)日：2011-06-08

    申请号：EP09741391.8

    申请日：2009-09-09

    申请人： Sarl Fac

    发明人： CHURLET, André

    IPC分类号： B23B31/20 ,  B23B51/00

    CPC分类号： B23B31/202 ,  B23B27/007 ,  B23B51/0009 ,  B23B51/107 ,  B23B2226/125 ,  B23B2226/315 ,  B23B2231/2032 ,  B23B2231/2075 ,  Y10T407/14 ,  Y10T407/2282

    摘要： The invention relates to a rotary or fixed cutting tool (1) for machining elements made of a hard and/or abrasive material, said tool comprising at least one active portion having hardness and/or abrasion properties higher than that of the material to be machined, and a passive portion interacting with a tool holder including a clamp (7), characterised in that the active portion (PA) and the passive portion (PP) of said tool are formed by an integral plate defining both portions and obtained directly from a blank having a predetermined constant thickness and a hardness corresponding to that of the active portion (PA) so as to obtain a planar tool, and in that the passive portion (PP) is elongate and has a constant substantially quadrangular cross-section for interaction with a housing (3) with a corresponding cross-section in the clamp (7), wherein the integral planar tool (1) thus formed is directly mounted in the housing (3) secured by tightening the same in the clamp (7).

    Spade bit
    46.
    发明公开
    Spade bit 审中-公开
    Spade位

    公开(公告)号：EP1525964A3

    公开(公告)日：2007-12-19

    申请号：EP04256433.6

    申请日：2004-10-19

    申请人： Textron Innovations Inc.

    发明人： Nordlin, William F.

    IPC分类号： B27G15/00 ,  B23B51/00

    CPC分类号： B23B51/0009 ,  B23B2251/14 ,  B23B2251/248 ,  B23B2251/406 ,  B27G15/00 ,  Y10T408/9065 ,  Y10T408/909

    摘要： An embodiment of a spade bit (100) has straight grooves (128) at a lead angle (α) of 4 to 8 degrees placed on flat edges of the spade bit. In an alternative embodiment, a spade bit (200) has two steps (232a,232b) of straight grooves (228) at a lead angle (α) of 4 to 8 degrees placed on flat edges of the spade bit. In other alternative embodiments, a spade bit (300) has tapered flat edge which have straight grooves (328) at a lead angle (α) of 4 to 8 degrees placed thereon. The straight grooves on the flat edges of the spade bit allows the spade bit to pull itself through the workpiece with a minimal amount of penetration. The flat edges of the spade bit may also have cutting surfaces for cleaning the hole and permitting the easy removal of the spade bit from the hole after drilling.

    摘要翻译： 铲形钻头（100）的实施例具有位于铲形钻头的平坦边缘上的处于4至8度的导程角（α）的直槽（128）。 在一个替代实施例中，铲形钻头（200）具有位于铲形钻头的平坦边缘上的4至8度导程角（α）的直槽（228）的两个台阶（232a，232b）。 在其他替代实施例中，铲形钻头（300）具有锥形平坦边缘，其具有放置在其上的处于4至8度的导程角（α）的直槽（328）。 铲形钻头平坦边缘上的直槽允许铲形钻头以最小的钻入量穿过工件。 铲形钻头的平坦边缘也可以具有用于清洁孔的切割表面，并且允许在钻孔之后从钻孔中容易地将铲形钻头移除。

    DAMAGED BOLT AND SCREW REMOVING DEVICES
    48.
    发明公开
    DAMAGED BOLT AND SCREW REMOVING DEVICES 审中-公开
    设备可以在删除损坏螺栓和螺钉

    公开(公告)号：EP1633532A2

    公开(公告)日：2006-03-15

    申请号：EP04750578.9

    申请日：2004-04-23

    申请人： Eazypower Corporation

    发明人： KOZAK, Burton ,  KOZAK, Ira

    IPC分类号： B25B13/50

    CPC分类号： B25B27/18 ,  B23B51/00 ,  B23B51/0009 ,  B23B51/0081 ,  B23B51/009 ,  B23B51/10 ,  B23B2251/04 ,  B23B2251/087 ,  B23B2251/14

    摘要： A bit for removing a broken fastener comprises a tip from which extend two or more notches separated by scraping surfaces formed from two-sided frusto-conically-­shaped regions. The scraping surfaces are bounded on one side by a cutting edge and on the other side by a non-cutting edge and are configured to cut into the fastener when the bit is rotated in a direction opposite to the fastener's direction of engagement. Specific embodiments include configurations where the cutting edges extend at different angles with respect to the bit axis and where the scraping surfaces comprise a plurality of serrations.

    Throw-away tipped drill, throw-away tip, and drill main body
    49.
    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：EP1454693A3

    公开(公告)日：2005-01-05

    申请号：EP04005146.8

    申请日：2004-03-04

    申请人： MITSUBISHI MATERIALS CORPORATION

    发明人： Takiguchi, Syoji

    IPC分类号： B23B51/04

    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： In a throw-away tipped drill, a slit (17) is formed at the bottom surface of a tip attachment seat (14) which faces towards the end of its axial line direction (O), with this slit (17) extending towards the rear of the axial line direction (O). Furthermore, when seen from the end of the axial line direction (O), this slit (17) is arranged as being displaced so as to be closer to a second end portion into which a shaft portion of a clamp bolt is threaded than to a first end portion which is pressed by a head portion of that clamp bolt. As a result, when, using the clamp bolt, the pair of outer side surfaces of the tip are pressed by the pair of internal side surfaces of the tip attachment seat (14), the pressing forces are mutually equal to one another.

    摘要翻译： 在扔掉的钻头中，在尖端安装座（14）的面向其轴线方向（O）的端部的底表面处形成狭缝（17），该狭缝（17）朝向 轴线方向（O）的后方。 此外，当从轴线方向（O）的端部观察时，该狭缝（17）被布置为更靠近夹紧螺栓的轴部分被螺纹连接到的第二端部 第一端部被该夹紧螺栓的头部按压。 结果，当使用夹紧螺栓时，尖端的一对外侧表面被尖端安装座（14）的一对内侧表面按压时，挤压力彼此相等。