INSPECTION METHODS AND SYSTEMS FOR DETECTING LEAKS IN VACUUM BAG ASSEMBLIES

The invention provides inspection methods and systems for detecting leaks in a vacuum bag assembly (11) used in the manufacture of a composite part based in spraying helium over the vacuum bag (31) and detecting the helium dragged by the vacuum inside the vacuum bag (31) through a leak. The inspecti...

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Bibliographic Details
Main Authors Gordo Arias, Ángel Pablo, Perez Pastor, Augusto, Galera Cordoba, Georgina, Miguez Charines, Yolanda, Jordan Carnicero, Francisco Javier, Álvarez Antonon, Laura
Format Patent
LanguageEnglish
French
German
Published 28.02.2018
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
MEASURING
PERFORMING OPERATIONS
PHYSICS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:The invention provides inspection methods and systems for detecting leaks in a vacuum bag assembly (11) used in the manufacture of a composite part based in spraying helium over the vacuum bag (31) and detecting the helium dragged by the vacuum inside the vacuum bag (31) through a leak. The inspection methods comprise creating a local helium atmosphere in a chamber (55) over the vacuum bag assembly (11) by zones following a programmed zonal sequence for a first leak detection test of each zone and a subsequent second leak detection test if the first test gives a positive result. The inspection systems comprise a helium spraying system (61) and a helium detecting equipment arranged to implement said inspection methods.
Bibliography:Application Number: EP20150382281