Structure Component

Abstract

A structure component which is produced by means of a fluid injection technique and has at least one first portion in which a hollow profile is provided and at least one second portion which is reinforced with continuous fibers.

Claims

1-13. (canceled)

14. A structure component which is produced by means of a fluid injection technique and has at least one first portion in which a hollow profile is provided and at least one second portion which is reinforced with continuous fibers.

15. The structure component according to claim 14, wherein at least one first portion and at least one second portion are arranged relative to one another in such a manner that the at least one first portion is surrounded at least in portions by the at least one second portion.

16. The structure component according to claim 14, which is designed as a hollow body having an inner, cut-out hollow space and a wall with the second portion with the continuous fibers.

17. The structure component according to claim 14, wherein the hollow profile is produced by a projectile driven by water.

18. The structure component according to claim 14, wherein endless fibers extend parallel to a longitudinal axis of the hollow profile.

19. The structure component according to claim 14, wherein endless fibers extend diagonally to a longitudinal axis of the hollow profile.

20. The structure component according to claim 14, wherein endless fibers extend tangentially to the hollow profile.

21. The structure component according to claim 14, wherein the fluid injection technique is selected from a group consisting of: water injection technology, projectile injection technology, gas injection technology.

22. The structure component according to claim 14, wherein a thermoplastic or thermosetting plastic is used with or without reinforcement.

23. The structure component according to claim 14, wherein continuous fibers with or without matrix material are used.

24. The structure component according to claim 14, wherein the material for the continuous fibers is selected from a group consisting of: glass, carbon, synthetic aramid fiber, basalt fibers, natural material.

25. The structure component according to claim 14, wherein the continuous fibers are included in the fluid injection step.

26. The structure component according to claim 14, wherein the continuous fibers are integrated in a step after the fluid injection step.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0030] FIG. 1 shows a perspective representation of an embodiment of the structure component, which is intended for use in a motor vehicle.

[0031] FIG. 2 shows a section along line II in FIG. 1.

[0032] FIG. 3 shows two further structure components.

[0033] FIG. 4 shows another structure component in two representations.

[0034] FIG. 5 shows an open tool for the production of a structure component.

[0035] FIG. 6 shows a section along line VI-VI in FIG. 5.

[0036] FIG. 7 shows in a flow chart a possible sequence of the method presented for the production of one embodiment of the structure component.

[0037] FIG. 8 shows in a further flow chart a further possible sequence of the method presented for the production of a further embodiment of the structure component.

EMBODIMENTS OF THE INVENTION

[0038] The invention is shown schematically by means of embodiments in the drawing and is described in detail below with reference to the drawing.

[0039] FIG. 1 shows a structure component 10 of a motor vehicle, wherein a plurality of structure segments 12 are accommodated in this structure component 10. These structural segments 12, which are made of a plastic material, are produced by means of an E-FIT method. This can be done in a one-step process.

[0040] FIG. 2 shows a section along line II-II in FIG. 1. A hollow profile 14 can be seen in a first portion 13. At the upper end and at the lower end of the first portion 13, a profiling 16 is provided in each of two second portions 18 with continuous fibers.

[0041] FIG. 3 shows a first structure component 30 and a second structure component 40. The two structure components 30, 40 are each constructed as a hollow body with a cut-out hollow space 35 or 45 and a wall 37 or 47 surrounding this hollow space 35 or 45 and have, on their outer surfaces or in the area of their outer surfaces on the wall 37 or 47, areas or second portions 32 or 42 which are reinforced with continuous fibers 33 or 43.

[0042] The portion 32 has endless fibers 33 which are aligned diagonally, for example at a 45 angle, with respect to a longitudinal axis 34 of the structure component 30 and overlapping or crossing one another. This orientation is particularly suitable for torsional loads, as illustrated by arrow 36.

[0043] In the second portion 42, on the other hand, the continuous fibers 43 are aligned parallel to the longitudinal axis 44 of the structure component 40. This is particularly suitable for a bending load, as illustrated by arrow 46.

[0044] FIG. 4 shows another structure component 50, in this case a front side door, in two representations. The representation above illustrates a component design with six injection points 52 and a cascade for a cored U-profile. The representation shows a circular interrupted channel 54. An arrow 56 shows the direction of the long fiber orientation.

[0045] The representation illustrates the cold channel connection to surfaces of the structure component 50 and the partial filling via a cold channel 58. The surfaces are completely filled via the cold channel 58.

[0046] The method of production of the structure component 50 has a number of advantages, at least in some variations: [0047] increase in rigidity, [0048] increase in the strength target, [0049] weight reduction of the structure, [0050] functional integration, [0051] cost reduction, [0052] fully automatic manufacturing in very short cycle times, [0053] can be completely recycled, [0054] open-technology development.

[0055] FIG. 5 shows an opened tool 100 with a first continuous fiber insert 102 and a second continuous fiber insert 104. After closing the tool 100, plastic reinforced with long or short fibers is inserted and the hollow profile is created by means of a fluid injection technique.

[0056] FIG. 6 shows a section along line VI-VI in FIG. 5. The representation shows a structure component 150 having a hollow profile 152, a first portion 154 of long or short fiber reinforced plastic and two continuous fiber inserts 156 forming the second portion.

[0057] FIG. 7 shows in a flow chart a possible process for the production of a structure component of the type described herein using injection molding as an example.

[0058] In a first step 200, a tool is opened and, if necessary, a component is removed if one is present. Then, in one step, 202 continuous fiber inserts are stored in a positioned position. The tool is then closed in a step 204. A polymer reinforced with short or long fibers is then injected in a step 206 and a cavity in the tool is filled. In a step 208, a fluid is injected and the hollow profile is designed. The workpiece, the later structure component, then cools down in step 210. Once this has been done, the tool is opened in a step 212 and the structure component is removed in a step 214.

[0059] FIG. 8 shows in a further flow chart a further possible process for the production of a further structure component of the type described herein using the example of impact extrusion.

[0060] In a first step 300, a tool is opened and, if necessary, a component is removed if one is present. Then, in one step, 302 continuous fiber inserts are stored in a positioned position. A polymer reinforced with short or long fiber is then stored in a step 304. In a step 306, the tool is closed and a cavity in the tool is filled. In a step 308, a fluid is injected and a hollow profile is designed. The workpiece, the later structure component, then cools down in step 310. Once this has been done, the tool is opened in a step 312 and the structure component is removed in a step 314.