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Lasers reinforce lightweight structures

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Dr. Jörg Schwartz, [email protected]

PARIS and AACHEN, Germany – At the JEC Composites Show in Paris, researchers from Germany’s Fraunhofer institutes showed how lasers can make the manufacturing of fiber-reinforced thermoplastic structures more efficient, reliable and automated. Fiber-reinforced plastics are used in applications including sporting equipment and in the aerospace and automotive industries. Parts using these materials combine impressive stability and breaking strength and are 50 to 70 percent lighter than steel and 15 to 20 percent lighter than aluminum. Nevertheless, there is room for improvement, fueled in part by the trend of...Read full article

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    Published: June 2010
    Glossary
    absorption
    The transfer of energy from an incident electromagnetic energy field with wavelength or frequency to an atomic or molecular medium.
    gaussian beam
    A beam of light whose electrical field amplitude distribution is Gaussian. When such a beam is circular in cross section, the amplitude is E(r) = E(0) exp [-(r/w)2], where r is the distance from beam center and w is the radius at which the amplitude is 1/e of its value on the axis; w is called the beamwidth.
    scattering
    Change of the spatial distribution of a beam of radiation when it interacts with a surface or a heterogeneous medium, in which process there is no change of wavelength of the radiation.
    absorptionaerospaceaviationbeam qualitycarcarbon fibercompositescrack propogationdiode lasersEuro NewsEuropefiber glassfiber lasersfiber opticsfiber reinforcedFraunhofer Institutegas flamesGaussian beamGFKglass fiberglass fibre reinforced plasticGRPhot airILTindustrialinfrared radiationIPTJEC Composites ShowJörg Schwartzlaser bondingLightweightMichael EmontsNewsParisplastic weldingplasticspolymersresinscatteringtapethermoplasticthermosettingWolfgang KnappLasers

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