Patent ID: 8920698
Filing Date: 2014-12-30
Classification: B29C,Y10T

Abstract:
1. A production method for a workpiece composed of a fibre-composite material, the method comprising: (a) providing two first supports and two second supports; (b) fitting of a main material composed of a pre-impregnated fibre semi-finished product and of a secondary material to the two first supports and the two second supports in order to form two first mould-blank areas and two second mould-blank areas in such a manner that each of the mould-blank areas comprises the main material and the secondary material, wherein each of the mould-blank areas has a varying cross section in a longitudinal direction of the mould-blank area, and wherein each of the mould-blank areas has a first cross section in a first portion of the mould blank area and a second cross section in a second portion of the mould-blank area, the first and the second portions being spaced apart from each other in the longitudinal direction of the mould-blank area; (c) pressure-bonding of the two first mould-blank areas and the two second mould-blank areas to form a workpiece blank in such a manner that the two first supports and the two second supports are provided on a surface of the workpiece blank, wherein the two second mould-blank areas are arranged at a rear with surfaces facing one another, and the two first mould-blank areas are arranged with surfaces facing longitudinal edges of the second mould-blank areas, wherein one of the first mould-blank areas is arranged facing first longitudinal edges of the second mould-blank areas, and the other one of the first mould-blank areas is arranged facing second longitudinal edges of the second mould-blank areas, and wherein the workpiece blank has a same cross section throughout a longitudinal direction of the workpiece blank; and (d) removing the two first supports and the two second supports and the secondary material from the workpiece blank in order to form the workpiece, wherein the workpiece has a varying cross section in a longitudinal direction of the workpiece, and wherein the workpiece has a first cross section in a first portion of the workpiece and a second cross section in a second portion of the workpiece, the first and second portions being spaced apart from each other in the longitudinal direction of the workpiece.