A study jointly conducted by Simpson Industries Inc., Ricardo Inc. and Intermet Corp. reveals that a crankshaft manufactured from cast ductile iron installed in an aluminum V-6 engine displays characteristics on par with one made of forged steel. But the trend has been to move away from iron because of a perception that steel produces less torsional and bending vibrations than iron, resulting in reduced noise, vibration and harshness (NVH), says the study. The study also reveals that ...

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