Hydro-form bonded bolster
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United States of America Patent
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Sep 27, 2016
Grant Date -
Dec 4, 2014
app pub date -
May 28, 2014
filing date -
May 28, 2013
priority date (Note) -
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Abstract
A vehicle front end load bearing bolster is provided with improved structural performance and a lower component weight, while also minimizing material, tooling, and production costs. The front end assembly is formed with a hydro-formed cross car reinforcement tube secured or bonded with mechanical fasteners and room temperature adhesive to a bolster, thereby improving stress distribution and increasing cross car system stiffness. The bonded hydro-form tube/bolster assembly provides increased torsion stiffness and dimensional stability to the vehicle frame. The hydro-formed cross car reinforcement tube have flattened terminal ends with apertures for integrated attachment to a bolster. The hydro-formed cross car reinforcement tube is formed of aluminum, brass, carbon, steel, stainless steel, copper and high strength alloys. The bolster is formed of high strength plastics and composites including sheet molding compounds (SMC), bulk molding compounds (BMC), and thermoplastic compounds such as glass mat thermoplastic (GMT) and direct long fiber thermoplastic (DLFT).
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