METHOD OF MANUFACTURING "T" SHAPED STRINGERS FOR AN AIRCRAFT AND CURING TOOL USED THEREOF

Method of manufacturing "T" shaped stringers for an aircraft whereby the "T" shaped stringers have a stringer web and a stringer foot, the method comprising: a first step of hot-forming a carbon fiber laminate in order to achieve semi-stringers geometry with an "L" shap...

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Bibliographische Detailangaben
Hauptverfasser:	PEREZ PASTOR AUGUSTO, SANCHEZ FERNANDEZ JULIAN, ESQUIVIAS GARCIA FERNANDO
Format:	Patent
Sprache:	eng
Schlagworte:	LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	Method of manufacturing "T" shaped stringers for an aircraft whereby the "T" shaped stringers have a stringer web and a stringer foot, the method comprising: a first step of hot-forming a carbon fiber laminate in order to achieve semi-stringers geometry with an "L" shaped cross-section, a second step of placing together two hot-formed "L" shaped semi-stringers in order to form a "T" shaped stringer, a third step of co-bonding the resulting "T" shaped stringer on a cured skin with an adhesive line between them, and a fourth step of curing the obtained "T" shaped stringer inside a vacuum bag using invar alloy angles as curing tools. The method characterised in that the invar alloy angles are cut at a radius area eliminating a part of the invar alloy angles covering the stringer foot in order to define an invar alloy piece having no foot.