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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Main Authors | , , , , , |
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Format | Patent |
Language | English French German |
Published |
28.02.2018
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: EP20150382281 |