GM Cites ‘Breakthrough’ in Cutting Vehicle Weight

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Detroit Free Press - September 24, 2012

General Motors plans to accelerate its plan for replacement of steel in its product lineup, after researchers achieved what the company described as a “breakthrough” in welding technology.

GM looks to increase fuel savings with breakthrough technology.

General Motors plans to accelerate the replacement of steel with aluminum….

GM hopes the technological advancement will boost fuel economy by making its vehicles lighter. Aluminum is lighter than steel, making it an enticing alternative when it is not too expensive. But several hurdles remain for aluminum, including production challenges.

GM believes it has solved one of those challenges: the frustrating process of welding aluminum body panels.

GM has already used the technology to use aluminum in the hood of the Cadillac CTS-V sedan and the lift gate of Chevrolet Tahoe and GMC Yukon hybrids.

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