公开(公告)号：US20040123462A1

公开(公告)日：2004-07-01

申请号：US10605340

申请日：2003-09-23

Applicant: VOLVO LASTVAGNAR AB

Inventor： Stefan Preijert ,  Leon Fuks

IPC: B21D039/03 ,  B23P011/00

CPC classification number: B60B35/08 ,  B21C37/0803 ,  B21C37/0815 ,  B21K1/06 ,  B21K21/00 ,  B23K20/023 ,  B23P15/00 ,  Y10T29/49622 ,  Y10T29/49829 ,  Y10T29/49865 ,  Y10T29/49893 ,  Y10T29/49968

Abstract: Method and apparatus for providing a hollow, elongated construction element, for example for use as a vehicle front axle. The method includes (1) directing a first blank through a furnace (2) for heating the blank to a working temperature. The blank is directed between a pair of rollers (3, 4) having profiled surfaces, the blank being preformed in one or more steps to form an intermediate product having a predetermined profile along its longitudinal extent. The blank is fed to a forging press having a number of cooperating die pads, the blank being worked in a plurality of steps (5, 8, 11) to form a substantially finished product, having a cross section substantially in the form of a hat profile of predetermined varying height, width and material thickness along its length. A second blank (14), having essentially the same profile as the hat profile of the first blank in the dividing plane of the cooperating die pads, is placed in connection with the hat profile. In a later step (15), the first (1) and the second blank (14) are joined together, at least along their respective edges, to form a composite hollow construction element (18). One embodiment of the disclosed invention is also the construction element that is produced according to the above-described method.

Abstract translation: 用于提供中空的细长构造元件的方法和装置，例如用作车辆前桥。 该方法包括（1）将第一坯料引导通过炉（2），以将坯料加热到工作温度。 坯料被引导在具有成型表面的一对辊（3,4）之间，坯料在一个或多个步骤中预成型，以形成沿其纵向范围具有预定轮廓的中间产品。 将坯料送入具有多个配合的冲压垫的锻压机中，坯料被加工成多个步骤（5,8,11），以形成基本成品，其截面基本上呈帽形 沿其长度的预定变化的高度，宽度和材料厚度的轮廓。 与配合的模具衬垫的分割平面中的第一坯料的帽子形状基本上相同的轮廓的第二坯件（14）被放置成与帽子轮廓相关联。 在后续步骤（15）中，第一（1）和第二坯料（14）至少沿其相应的边缘连接在一起以形成复合中空构造元件（18）。 所公开的发明的一个实施例也是根据上述方法制造的结构元件。