Cold-forming dies and cold-forming process
    1.
    发明公开
    Cold-forming dies and cold-forming process 失效
    Matritzen und Verfahren zum Kaltformen。

    公开(公告)号:EP0426312A2

    公开(公告)日:1991-05-08

    申请号:EP90311034.4

    申请日:1990-10-09

    IPC分类号: B21C23/03 B21K21/00 H01M2/30

    CPC分类号: B21K21/10 B21C23/03 H01M2/307

    摘要: Progressive step and compound dies (50,66,78) are employed in a cold-working process to form a metallic pre-form (42) of selected mass into a precision-finished, pore-free, annular bushing (64) with a mass substantially equal to that of the pre-form (42), for use as a battery terminal which allows the fracture-free spin-over connection of a stem (46) of the bushing (64) to a battery cover (102) and the close-fit of the bushing (64) on a battery post (103) when the cover (102) is fitted to a battery casing.

    摘要翻译: 逐步步骤和复合模具(50,66,78)用于冷加工过程中,以将精选成品的无孔环形衬套(64)形成选定质量的金属预成型件(42),其中具有 质量基本上等于预成型件(42)的质量,用作电池端子,其允许衬套(64)的杆(46)与电池盖(102)的无断裂旋转连接和 当盖子(102)装配到电池壳体上时,衬套(64)在电池柱(103)上的紧密配合。

    Cold-forming dies and cold-forming process
    2.
    发明公开
    Cold-forming dies and cold-forming process 失效
    冷成型和冷成型工艺

    公开(公告)号:EP0426312A3

    公开(公告)日:1991-12-27

    申请号:EP90311034.4

    申请日:1990-10-09

    IPC分类号: B21C23/03 B21K21/00 H01M2/30

    CPC分类号: B21K21/10 B21C23/03 H01M2/307

    摘要: Progressive step and compound dies (50,66,78) are employed in a cold-working process to form a metallic pre-form (42) of selected mass into a precision-finished, pore-free, annular bushing (64) with a mass substantially equal to that of the pre-form (42), for use as a battery terminal which allows the fracture-free spin-over connection of a stem (46) of the bushing (64) to a battery cover (102) and the close-fit of the bushing (64) on a battery post (103) when the cover (102) is fitted to a battery casing.

    Process and apparatus for the cold extrusion of metal bushings, in particular, for tracks of track-laying tractors and the like
    5.
    发明公开
    Process and apparatus for the cold extrusion of metal bushings, in particular, for tracks of track-laying tractors and the like 失效
    用于对金属衬套冷挤压,特别是用于履带式车辆的环形履带的方法和装置。

    公开(公告)号:EP0003773A1

    公开(公告)日:1979-09-05

    申请号:EP79100356.9

    申请日:1979-02-08

    IPC分类号: B21C23/03 B21C23/20

    CPC分类号: B21C23/03 B21C23/20 B21K1/02

    摘要: Process and apparatus for the cold extrusion of bushings (2) from cylindrical metal pieces or slabs, carried out by means of a single extrusion step, performed into an apparatus comprising a press body with a reciprocating punch (4), cooperating with a coaxial press die (8), including a coaxial seat adapted to receive the metal slab to be transformed in a bushing as well as a upper sleeve (6), slidably mounted about said punch and acting as guiding means for correctly centering said punch with regard of said piece during the extrusion step.

    摘要翻译: 方法和装置用于从筒状金属片或板,借助于一个单个的挤出步骤的情况下进行,所执行进到装置,包括一个压体与往复冲头(4)的衬套(2)的冷挤压,具有同轴压配合 所述(8),其包括同轴的座angepasst以接收所述金属板被变换成一个衬套,以及一个上部套筒(6)可滑动地安装大约所述冲头,并作为引导装置,用于正确地定心所述冲头与所述的方面 在挤出步骤片。

    VARIABLE-THICKNESS EXTRUSION METHOD AND EXTRUSION UNIT IN ACCORDANCE WITH SAID METHOD
    6.
    发明授权
    VARIABLE-THICKNESS EXTRUSION METHOD AND EXTRUSION UNIT IN ACCORDANCE WITH SAID METHOD 失效
    方法和设备产品中变截面挤压

    公开(公告)号:EP0889763B1

    公开(公告)日:2002-03-13

    申请号:EP97915464.8

    申请日:1997-03-26

    发明人: GANDINI, Angelo

    IPC分类号: B21C23/18 B21K21/08 B21C23/20

    摘要: A cold impact extrusion method for hollow metal elements, in particular cartridge cases, comprises the steps of placing a slug or blank in a die, pressing the blank within the die between a punch and counter-punch facing each other, during compression moving the punch forward in the die at a first velocity and moving the counter-punch backward at a second velocity slower than the first one, so as to reduce the distance between the punch and counter-punch. During movement, the punch head is caused to pass through die areas having different distances from the punch sides so as to identify an extrusion annulus of variable width between the die and punch. An extrusion unit for applying the method comprises a punch (11, 111, 211) and a counter-punch (12, 112, 212) facing each other and coaxially movable within a die (13, 113, 213) to identify an extrusion chamber (14, 114, 214) therebetween, which has a variable transverse size along the punch and counter-punch movement axis.

    Outillage de formage à froid de pièces métalliques comportant des éléments axiaux opposés
    9.
    发明公开
    Outillage de formage à froid de pièces métalliques comportant des éléments axiaux opposés 失效
    装置的具有相反轴向部分金属工件冷加工。

    公开(公告)号:EP0117213A1

    公开(公告)日:1984-08-29

    申请号:EP84420011.3

    申请日:1984-01-27

    发明人: Bostbarge, Guy

    IPC分类号: B21C23/03 B21K1/76

    摘要: L'outillage suivant l'invention comprend une filière fixe (4-6) réalisée sous la forme d'un poinçon (4) entouré d'une bague annulaire (6) pour la réalisation d'une jupe (11) d'un organe comportant en outre en bout d'arbre (12) axial opposé à cette jupe. Ce bout d'arbre est réalisé par une filière tubulaire (2) solidaire de la partie mobile de l'outillage. Cette filière (2) s'engage sans jeu dans l'alésage (8a) d'une matrice (8) frettée de manière que ladite filière se frette dynamiquement pendant le travail de filage dans ledit alésage.
    Extrusion à froid des métaux.

    摘要翻译: 1.一种用于成型,优选冷成型,金属工件(11,12,14,14A,14B)从一个钢坯(10)包括一个固定的,(4,6),这确保轴向或纵向元件的绘制( 11,14a)和所有其由带在装置的固定部分(8)静态地保持以便反抗成形力在其固定部分(8)显影和在除了包括管状的(2)所有这是一体 用该装置的移动部分和在所述固定部件被引导(8),从而通过绘制相对于第一第二轴向元件(12)(11,14A)dadurch gekennzeichnet,DASS模具环形面(2a)来创建, 模具(2)是截头圆锥体的形状或为凹形(图3),其中通入所述模具(2)(图1〜3),引入的金属的流动方向 管状的(2)到所述装置的固定部分(8)使其可以在固定部件(8)留在这个(8)抵接于坯料接触的瞬间动态带状(1 0)。

    METHOD OF FABRICATING SHAFT FROM METAL PLATE
    10.
    发明公开
    METHOD OF FABRICATING SHAFT FROM METAL PLATE 失效
    从金属板制造轴的方法

    公开(公告)号:EP0937522A1

    公开(公告)日:1999-08-25

    申请号:EP96929544.3

    申请日:1996-09-06

    IPC分类号: B21K1/06 B21J5/06 B21D22/04

    摘要: The object of the present invention is to disclose a method of forming integrally an axis on a metallic plate at an arbitrary position thereof and perpendicularly to the surface thereof.
    The method comprises a first step of forward squeezing performed by a pressing process applied to a metallic plate 1 and a second step of extending the length of a projection formed in the first step by rear-squeezing performed by pushing a punch into the projection, thereby producing an axis with a sufficient height and high precision.

    摘要翻译: 本发明的目的是公开一种在金属板的任意位置并垂直于其表面一体地形成轴的方法。 该方法包括通过施加到金属板1的加压工艺进行的前进挤压的第一步骤和通过将冲头推入突起中而进行的后挤压来延伸形成在第一步骤中的突起的长度的第二步骤,由此 产生足够的高度和高精度的轴。