What do gears, bearings, and shafts have in common? For one thing, they're often made out of steel. For another, they're subject to a failure mode known as rolling contact fatigue. Rolling contact ...

Heat treatment is an essential technique for influencing workpiece characteristics. Several industries focus on reliable part design to avoid breaking parts, e.g. by decreasing material weight and ...

Aninnovative carburized case-hardening process that increases the strength of precisiongear racks, including the tooth flanks and root, maximizes power density,stiffness and performance. The Strong ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...