Multiaxial stack rigidly connected by means of weld points applied by means of inserted thermoplastic webs
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United States of America Patent
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Oct 25, 2016
Grant Date -
Aug 9, 2012
app pub date -
Oct 21, 2010
filing date -
Oct 23, 2009
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Abstract
The present invention relates to a stack of fibrous materials including at least two unidirectional carbon fiber layers, each extending in different directions, wherein each one of the unidirectional layers is connected by means of at least one of the surfaces thereof to an adjacent web of thermoplastic fibers, at least one web being inserted between two consecutive unidirectional layers, characterized in that the link between each unidirectional layer and each adjacent web is provided by the web, by weld points which produce an intermittent overall weld, and in that said weld points also guarantee the cohesion of the stack, as well as the method for manufacturing same.
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