Method for forming a composite article
AssigneeROLLS-ROYCE plc
InventorVincent Gill
Life of this patent
Estimating the term…
Abstract
A method of forming a composite article involves the steps of: providing a formed article, the formed article comprising a plurality of non-crimp fibre fabrics with each non-crimp fibre fabric comprising at least two dry-fibre layers; stabilising the plurality of non-crimp fibre fabrics; machining a surface of the formed article having exposed ply terminations to provide a smooth blended surface with chamfered plydrops; positioning the machined formed article in a second mould; infiltrating the second mould with a polymer matrix resin; and curing the machined formed article to form the composite article.
Claims14
A method of forming a composite article, the method comprising the steps of:
- providing a formed article, the formed article comprising a plurality of non-crimp fibre fabrics with each non-crimp fibre fabric comprising at least two dry-fibre layers;
- stabilising the plurality of non-crimp fibre fabrics;
- arranging an insert at a first end of the plurality of non-crimp fibre fabrics such that at least a first plurality of non-crimp fibre fabrics are arranged directly adjacent to and contacting the insert;
- machining a surface of the formed article having exposed ply terminations to provide a smooth blended surface with chamfered plydrops;
- positioning the machined formed article in a second mould;
- infiltrating the second mould with a polymer matrix resin;
- and
- curing the machined formed article to form the composite article,
- wherein the step of infiltrating the machined preform article with a polymer matrix resin, comprises the additional previous step of applying a fibre fabric wrap layer to the machined formed article, the fibre fabric wrap layer extending over at least a part of the exterior surface of the machined formed article.
Dependencies are inferred from the claim text.