公开(公告)号：US07316849B2

公开(公告)日：2008-01-08

申请号：US10325612

申请日：2002-12-20

申请人： Andreas Boegel ,  Isabell Buresch ,  Robert Kloeckler ,  Heinz-Ulrich Koboecken ,  Eberhard Lepin ,  Karl-Hermann Stahl ,  Hans-Juergen Stoeckl

发明人： Andreas Boegel ,  Isabell Buresch ,  Robert Kloeckler ,  Heinz-Ulrich Koboecken ,  Eberhard Lepin ,  Karl-Hermann Stahl ,  Hans-Juergen Stoeckl

IPC分类号： B32B3/30

CPC分类号： B23D31/002 ,  Y10T428/12188 ,  Y10T428/12389 ,  Y10T428/15

摘要： A band-shaped semi-finished product is made out of a ductile material and is configured to be separated into at least two sections. At least one pair of wedge-shaped, non-cuttingly formed longitudinal notches are formed, between the tips of which there remains a thin web of material, which can be torn easily with little force. The semi-finished product is distinguished by burr-free separated edges, defined geometry of the separating surfaces, and extremely reduced breaking-surface portions. It shows improved resistance during static and dynamic stress, in particular for alternating bending loads, in comparison to conventional, for example via the rolling-cutting technique, separated semi-finished products.

摘要翻译： 带状半成品由延性材料制成并且被构造成分成至少两个部分。 形成至少一对楔形，非切割形成的纵向凹口，其尖端之间仍然存在薄的材料网，其可以很小的力被撕裂。 半成品的特征在于无毛刺的分开的边缘，分离表面的限定几何形状和极度减小的断面部分。 与传统的例如通过轧制切割技术，分离的半成品相比，在静态和动态应力下，特别是用于交替的弯曲载荷下，其显示出改善的阻力。