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The rotor and sprocket are used in an automotive cam-phaser application where fuel saving through weight reduction is required. These are the first known such components being manufactured from aluminium powder metal in large scale production.
Using aluminium metal powder combines the benefits from standard sintered iron components (like near net shape capability) with the advantages of lightweight materials. Compared to a standard PM iron cam-phaser design, weight is reduced from 900 grams to 450 grams. Rotating inertia is reduced as well, improving dynamic response behaviour of the cam-phaser, thus giving another benefit to engine performance and efficiency.
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