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US 9,914,191 B2Granted
Chamfering of laminate layers
AssigneeVestas Wind Systems A/S
InventorsYohann Bellanger, Christopher Thomson
Life of this patent
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Abstract
A method of machining a fibrous sheet for a composite structure is described. The sheet comprises a resin matrix having a glass transition temperature, wherein the method comprises cooling the sheet substantially to maintain the temperature of the matrix below its glass transition temperature during machining.
Claims25
A method of machining a fibrous sheet for a composite structure, the fibrous sheet comprising a resin matrix being tacky at room temperature and having a glass transition temperature, wherein the method comprises:
- providing the fibrous sheet at a first temperature;
- supporting the fibrous sheet for machining;
- and
- cooling at least part of the fibrous sheet to a second temperature below the first temperature, substantially to maintain a temperature of the matrix below its glass transition temperature during the machining.
1 more element
A method of making a composite structure, comprising:
- tapering an edge of a fibrous sheet by a method of machining a fibrous sheet for a composite structure, the fibrous sheet comprising a resin matrix being tacky at room temperature and having a glass transition temperature, wherein the method comprises:
- providing the fibrous sheet at a first temperature;
- supporting the fibrous sheet for machining;
- and
- cooling at least part of the fibrous sheet to a second temperature below the first temperature, substantially to maintain a temperature of the matrix below its glass transition temperature during the machining, the machining effecting the tapering of the edge of the fibrous sheet;
- and
- incorporating the fibrous sheet into a composite structure with the tapered edge lying against or beside at least one other fibrous reinforcement sheet.
4 more elements
Dependencies are inferred from the claim text.