Metal clamps are eliminated because of a new spin welding process used in the pressure line of the award-winning diesel exhaust fluid system (DEF) in the 2011 Ford Superduty pickup truck. A 50 percent glass reinforced polyamide quick connector is friction welded to a polyamide line in one of the many technical innovations in the DEF system, which won the Grand Prize at the 40th Annual Automotive Innovation Awards Gala held by the Society of Plastics Engineers International in November. The all PA12 inner tube line construction is 40 percent lighter than competitive EPDM rubber lines, according to Scott Cooper, an engineer with Ford Powertrain Engineering.
Spin welding, a technical strength at Ford, is used to join spherical plastic parts. Generation of friction at the mating surface by spinning one part (upper) against a fixtured (lower) part, fastens the assembly.
NASA and Boeing developed a huge, carbon composite cryogenic fuel tank for deep space missions, and started testing it last month. The 18-ft cryotank will enable heavy-lift launch vehicles to send both humans and robots into deep space.
German engineering firm EDAG Group showed a single-piece, 3D-printed car body design inspired by a turtle at the Geneva Motor Show. It came about after an assessment of how additive manufacturing could be applied to making industrial components, modules, and complete vehicle bodies.
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