LEAF SPRING MADE OF A FIBER COMPOSITE MATERIAL HAVING INTEGRATED BEARING EYES AND METHOD OF PRODUCING SAID LEAF SPRING

摘要

A leaf spring made of a fiber composite material having integrated bearing holes and a method for producing is disclosed. The method comprises the steps of cutting prepreg strips of a predetermined length from a prepreg strand, removing cut-outs from the particular prepreg strip in the axial ends where a bearing hole should be formed, laying a plurality of prepreg strips one over the other in a prepreg stack in alternation so that the surfaces of the prepreg strips are flush to form a raw leaf spring forming a bearing hole by deforming an axial end of the prepreg stack in a plane perpendicular to the longitudinal extension (L) and perpendicular to the transverse extension (B) of the prepreg stack, setting the raw sheet spring to form the finished leaf spring in a mold with a suitable setting pressure and a suitable setting temperature.

主权项

1. A method for producing a leaf spring made of a fiber composite material, in which leaf spring, on at least one axial end, a bearing eye is configured, said method comprising the following steps:
cutting prepreg strips of predetermined length from a prepreg strand; cutting out cutouts from the respective prepreg strip in the region of those axial ends on which respectively a bearing eye is intended to be configured; laying a plurality of prepreg strips alternately superficially flush one on top of the other in a prepreg stack to form a crude leaf spring; configuring the at least one bearing eye by deforming an axial end of the prepreg stack in a plane oriented perpendicularly to the longitudinal extent (L) and perpendicularly to the transverse extent (B) of the prepreg stack; and setting the crude leaf spring to form the finished leaf spring in a mold, under the influence of a suitable setting pressure and a suitable setting temperature.