Method and apparatus for producing a composite component
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United States of America Patent
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Aug 14, 2012
Grant Date -
Mar 25, 2010
app pub date -
Sep 25, 2007
filing date -
Oct 12, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method and apparatus for producing a composite component, a tubular hollow section blank is placed into a die cavity of a combination tool comprising an inner high-pressure shaping tool and an injection-molding tool. The combination tool is filled with a fluid in such a way that the blank is wetted from the inside by the fluid, and the ends of the combination tool are sealed by two axial molding plugs. The filled blank is then expanded under pressure . The finished hollow section is plastic-coated in the same tool. The hollow section is emptied after shaping in the sealed state, at least until it is no longer dripping, the pressurized fluid being expelled under pressure from the hollow section through at least one discharge channel formed in the axial molding plugs.
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