Method for producing a fiber-composite hollow component, and fiber-composite hollow component
AssigneeDeutsches Zentrum für Luft- und Raumfahrt e.V.
InventorsSebastian Meyer, Martin Hillebrandt, Christian Hühne, Martin Zander
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Abstract
A method produces a fiber-composite hollow component from a fiber-composite material which contains at least one fibrous material and one matrix material. The fiber-composite hollow component is formed from at least two fiber-composite half-shells which in a joining edge region of the fiber-composite half-shells are joined to one another such that a cavity is configured between the joined-together fiber-composite half-shells.
Claims12
A method for producing a fiber-composite hollow component from a fiber-composite material which contains at least one fibrous material and one matrix material, wherein the fiber-composite hollow component is formed from at least two fiber-composite half-shells which are joined to one another in joining edge regions of each of the two fiber-composite half-shells such that a cavity is configured between the two fiber-composite half-shells when they are joined together, comprising:
- providing a first fiber-composite half-shell and at least one second fiber-composite half-shell, each of which are formed from the fiber-composite material;
- assembling the first fiber-composite half-shell and the at least second fiber-composite half-shell so as to form the fiber-composite hollow component wherein at least one spacer element is inserted in each joining edge region between the first fiber-composite half-shell and the at least one second fiber-composite half-shell to generate a defined mutual spacing of the half-shells and to form a part of an inner wall of the fiber-composite hollow component, so that at a joining region radii of the half-shells do not converge in a tangential manner but are interrupted by the at least one spacer element, wherein the spacer element does not extend into the cavity;
- incorporating an internal vacuum cover in the cavity of the fiber-composite hollow component formed by the assembling step, and incorporating the fiber-composite hollow component formed by the assembling step in an external vacuum cover such that a component cavity having the fibrous material of the fiber-composite hollow component to be produced is formed between an internal vacuum cover and the external vacuum cover;
- evacuating the component cavity having the fibrous material such that the internal vacuum cover not only hugs the first fiber-composite half-shell and the second fiber-composite half-shell from the inside but also hugs an end side of the spacer element;
- and
- curing the matrix material which embeds the fibrous material of the fiber-composite half-shells to produce a roll-up hollow body in which at a joining region radii of the half-shells do not converge in a tangential manner but are interrupted by the at least one spacer element.
A method for producing a fiber-composite hollow component from a fiber-composite material which contains at least one fibrous material and one matrix material, wherein the fiber-composite hollow component is formed from at least two fiber-composite half-shells which are joined to one another in joining edge regions of each of the two fiber-composite half-shells such that a cavity is configured between the two fiber-composite half-shells when they are joined together, comprising:
- providing a first fiber-composite half-shell and at least one second fiber-composite half-shell, each of which are formed from the fiber-composite material;
- assembling the first fiber-composite half-shell and the at least second fiber-composite half-shell so as to form the fiber-composite hollow component wherein at least one spacer element is inserted in each joining edge region between the first fiber-composite half-shell and the at least one second fiber-composite half-shell to generate a defined mutual spacing of the half-shells and to form a part of an inner wall of the fiber-composite hollow component, so that at a joining region radii of the half-shells do not converge in a tangential manner but are interrupted by the at least one spacer element, wherein the spacer element does not extend into the cavity;
- incorporating an internal vacuum cover in the cavity of the fiber-composite hollow component formed by the assembling step, and incorporating the fiber-composite hollow component formed by the assembling step in an external vacuum cover such that a component cavity having the fibrous material of the fiber-composite hollow component to be produced is formed between an internal vacuum cover and the external vacuum cover;
- evacuating the component cavity having the fibrous material such that the internal vacuum cover bears completely on an internal wall of the fiber-composite hollow component to be produced including an end side of the spacer element;
- and
- curing the matrix material which embeds the fibrous material of the fiber-composite half-shells to produce a roll-up hollow body in which at a joining region radii of the half-shells do not converge in a tangential manner but are interrupted by the at least one spacer element.
Dependencies are inferred from the claim text.