Since my last article reviewed a subject covering a fundamental of a robust process, I decided to continue with that theme and cover screw-recovery time. You might think screw-recovery time should be ...

The degree to which a ball screw performs well in the field is the direct result of the process used to make it. Grinding, rolling, and whirling are the most common ways to thread ball screws. Some ...

This examination has trickled down to fasteners in applications including bolted or riveted joints. With new ELV standards, the auto industry must look at lead, cadmium, and hexavalent-chromium ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Charles Vander Woerd, a ...

While single-screw extruders perform the lion’s share of recycling applications, twin-screw machines have a lot to offer recyclers—especially when the goal is a higher-value end product. Are ...

Can you make a screw out of a piece of paper and pencil? Your friends might think it is magic, but it’s science at work. Here’s an easy experiment that might add a “twist” to your thinking. MATERIALS ...