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    Default GM unveils welding technology to reduce vehicle weight, improve fuel economy

    GM unveils welding technology to reduce vehicle weight, improve fuel economy

    By Shaun Byron | MLive.com
    on October 02, 201
    2

    FLINT TOWNSHIP, MI -- Fuel economy is becoming an industry standard for automakers as the price at the pump trends upward and the federal government continues pressure for a greater reduction in emissions.

    General Motors Co. has now unveiled a new welding technology that will increase the amount of aluminum used in its vehicles to reduce weight and improve fuel efficiency.

    Invented by David Sigler, a technical fellow with GM, the process is called resistance spot welding and was unveiled Tuesday morning at the Flint Metal Center in Flint Township.

    It uses a patented multi-ring electrode, replacing smooth electrodes used to spot weld steel.

    The technology is now being used for the hood of the Cadillac CTS-V and the lift gate for the hybrid version of the Chevrolet Tahoe and GMC Yukon. It will be used more extensively starting next year.

    Full Story: GM unveils welding technology to reduce vehicle weight, improve fuel economy | MLive.com
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