Making cars of the future stronger and lighter, while using less energy

Story excerpt provided by The Ohio State University College of Engineering.

Engineers at The Ohio State University have developed a new welding technique that consumes 80 percent less energy than a common welding technique, yet creates bonds that are 50 percent stronger.

The new technique could have a huge impact on the auto industry, which is poised to offer new cars which combine traditional heavy steel parts with lighter, alternative metals to reduce vehicle weight.

Despite recent advances in materials design, alternative metals still pose a challenge to manufacturers in practice. Many are considered un-weldable by traditional means, in part because high heat and re-solidification weaken them, said Glenn Daehn, professor of materials science and engineering at Ohio State, who helped develop the new technique.

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Originally published October 30, 2015.

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