Atlanta — The plastics materials sector is responding to today's stronger-than-ever "green" momentum by developing bioplastics and beefing up recycled content, both mechanical and chemical. And ...

This file type includes high-resolution graphics and schematics when applicable. Lead screws are one of the most common linear-motion devices, thanks to their low cost and reliability. And recent ...

Invention of the gear-hobbing process about 150 years ago revolutionized not only gear fabrication, but also gear design. Basically, a hob or shaper cutter traverses the gear blank to generate teeth.