To provide an automated method for manufacturing large and complex omega stringers with high curvature.SOLUTION: There is provided a method for manufacturing curved omega stringers made by a composite material, comprising: a step of automatically laying-up a tape in an ATL machine, an AFP machine or a FLU machine, and automatically cutting a contour to obtain a straight preform; a step of flat forming to obtain an omega shape on the straight preform to process it into a straight omega shaped preform; a curve forming step, in which the straight omega shaped preform is placed in a flexible tool comprising a longitudinally embedded stiff band and some laminate clamping means, the laminate clamping means located in the extremes of the flexible tool, the flexible tool being covered by mechanical closing means, such that a reinforcement is held with the laminate clamping means during the forming process, and then the straight omega shaped preform is heated and processed into the curved omega stringer.SELECTED DRAWING: Figure 1

    【課題】高い曲率を有する大型で複雑なオメガ形ストリンガを製造するための自動的方法の提供。【解決手段】複合材料製曲線オメガ形ストリンガの製造方法において、ATL機又はAFP機又はFLU機内において自動でテープをレイアップし、輪郭を自動的に切断し、直線プリフォームを得るステップと、平面成形して直線プリフォーム上でオメガ形状を得、それを直線オメガ形状プリフォームへと加工するステップと、直線オメガ形状プリフォームが、長手方向に埋込まれた剛性バンド及びいくつかの積層品挟持用手段を含む可撓性工具内に設置される、曲線成形するステップであって、積層品挟持用手段が可撓性工具の端部内に位置設定されており、可撓性工具が機械的閉鎖用手段によりカバーされ、補強材は成形プロセス中、積層品挟持用手段によって保持され、その後直線オメガ形状プリフォームが加熱され、曲線オメガ形ストリンガへと加工されるステップとを含む方法。【選択図】図1


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    Title :

    METHOD FOR MANUFACTURING CURVED OMEGA STRINGERS AND Z-SHAPED STRINGERS OF COMPOSITE MATERIAL, AND METHOD FOR MANUFACTURING COMPOSITE MATERIAL STIFFENED PANEL WITH CURVATURE


    Additional title:

    複合材料製の曲線オメガ形ストリンガおよびZ形状ストリンガの製造方法および曲率を有する複合材料補剛パネルの製造方法



    Publication date :

    2020-03-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B64C AEROPLANES , Flugzeuge / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



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