A reinforcing fiber structure for composite material parts with great variation of thickness
US-2018038021-A1 · Feb 8, 2018 · US
Fiber structure and a composite material part incorporating such a structure
US11560650B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11560650-B2 |
| Application number | US-202117221439-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 2, 2021 |
| Priority date | Nov 14, 2017 |
| Publication date | Jan 24, 2023 |
| Grant date | Jan 24, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method of fabricating a fiber structure by multilayer three-dimensional weaving between a plurality of weft yarns and of warp yarns, the fiber structure having at least first and second portions that are adjacent in the warp direction, the first portion presenting, in a direction perpendicular to the warp and weft directions, a thickness greater than the thickness of the second portion, includes making the first portion using a step of three-dimensionally weaving warp and weft layers in which a fiber fabric is formed in the form of a Mock-Leno weave grid in a core of the first portion together with skins at a surface of the first portion, a weave of the skins being modified locally so as to deflect certain warp yarns from said skins and weave them with the fiber fabric in the form of the Mock-Leno weave grid.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of fabricating a fiber structure by multilayer three-dimensional weaving between a plurality of weft yarns and of warp yarns, the fiber structure having at least first and second portions that are adjacent in the warp direction, the first portion presenting, in a direction perpendicular to the warp and weft directions, a thickness greater than the thickness of the second portion, the method comprising making the first portion by means of a step of three-dimensionally weaving warp and weft layers in which a fiber fabric is formed in the form of a Mock-Leno weave grid in a core of the first portion together with skins at a surface of the first portion, a weave of the skins being modified locally so as to deflect certain warp yarns from said skins and weave them with the fiber fabric in the form of the Mock-Leno weave grid. 2. The method according to claim 1 , wherein the Mock-Leno weave fabric presents, in a direction perpendicular to the warp and weft directions, a thickness that decreases going towards the second portion. 3. The method according to claim 1 , wherein the first and second portions have the same number of warp yarns woven continuously between the first and second portions, and wherein the first portion comprises in its core a number of warp yarn layers that is greater than the number of warp yarn layers present in the core of the second portion. 4. The method according to claim 3 , wherein the first portion comprises in its core a number of warp yarn layers equal to twice the number of warp yarn layers present in the core of the second portion. 5. The method according to claim 1 , wherein the fiber structure comprises carbon yarns or ceramic material yarns.
Assignees
Inventors
Classifications
Ceramics · CPC title
and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM] {, e.g. by vacuum} · CPC title
Carbon · CPC title
Blades, e.g. for helicopters · CPC title
Woven fabrics · CPC title
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- What does patent US11560650B2 cover?
- A method of fabricating a fiber structure by multilayer three-dimensional weaving between a plurality of weft yarns and of warp yarns, the fiber structure having at least first and second portions that are adjacent in the warp direction, the first portion presenting, in a direction perpendicular to the warp and weft directions, a thickness greater than the thickness of the second portion, inclu…
- Who is the assignee on this patent?
- Safran Ceram, Albany Int Corp
- What technology area does this patent fall under?
- Primary CPC classification D03D25/005. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Jan 24 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).