Apparatus for shear-cutting a stack of amorphous steel sheets
    2.
    发明公开
    Apparatus for shear-cutting a stack of amorphous steel sheets 失效
    Schervorrichtung zum Schneiden eines Stapel von amorphen Stahlblechen。

    公开(公告)号:EP0391194A1

    公开(公告)日:1990-10-10

    申请号:EP90105703.4

    申请日:1990-03-26

    IPC分类号: B23D15/04

    摘要: For shear-cutting a stack (10) of thin sheets (11) of amorphous steel along a cutting plane (42) that extends transversely of the stack (10), we utilize apparatus that comprises two blades (12, 14) that are positioned at the start of a cutting operation on opposite sides of the stack (10). Each of the blades (12, 14) has a first surface (30, 36) for engaging one side of the stack (10) and a second surface (32, 38) extending trans­versely of the first surface (30, 36) and generally parallel to said cutting plane (42) and intersecting the first surface (30, 36) at a corner (34, 40). The first surface (30, 36) of each blade (12, 14) is dis­posed at a predetermined rake angle (α) with respect to a reference plane (50) extending through a point on the corner (34, 40) of the blade (12,1 4)and normal to said cutting plane (42). By making the sum of these rake angles of a negative value and between 5 and 35 degrees, we are able to substan­tially improve the wear resistance of the blades (12, 14) and lengthen their working life.

    摘要翻译: 为了剪切沿着横向于堆叠(10)延伸的切割平面(42)的非晶体钢板(11)的堆叠(10),我们利用包括两个叶片(12,14)的装置, 在堆叠(10)的相对侧上的切割操作开始时。 每个叶片(12,14)具有用于接合堆叠(10)的一侧的第一表面(30,36)和横向于第一表面(30,36)延伸的第二表面(32,38),并且通常 平行于所述切割平面(42)并且在角部(34,40)处与所述第一表面(30,36)相交。 每个叶片(12,14)的第一表面(30,36)相对于延伸穿过叶片的角部(34,40)上的点的参考平面(50)以预定的前角(α)设置 (12,1 4)并垂直于所述切割平面(42)。 通过使这些前角的总和为负值和5至35度之间,我们能够显着提高叶片(12,14)的耐磨性并延长其使用寿命。