But the things that might seem little at first can also prove to be important, as they add up to create overall results that matter. One of the examples that illustrates this comes from BMW, which has managed to achieve weight savings of 15 percent and cost savings of 10 percent for the rear seatbacks of the new BMW 5 Series working together with JSP.
The component uses a special design, as the German carmaker has chosen to use a three part structure, that would allow it to offer reduced weight while meeting impact test standards. The seatbacks are built around a “ARPRO” energy-absorbing structure, with an injection-moulded part supporting the passengers and a carpet finish facing the vehicle’s boot. The three parts work together to offer the components a good impact resistance.
ARPRO is an Expanded Polypropylene that is built by JSP and is already used in the automotive industry. The innovative material offers a high rigidity while being light.
BMW says that the new construction technology has alowed it to save a total of 1.2 kg for the component, which had already undergone weight saving procedures.
“Our business approach at JSP is working with designers to exploit ARPRO’s extraordinary versatility. With BMW’s Sandwich Seatback the result is a win on all fronts – economics, manufacturing efficiency, environmental benefits and – not least – passenger safety and functionality,” Paul Compton, JSP President and Chief Executive Officer was quoted as saying by just-auto.com.
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