A start-up company in New York has developed a new vibration-proof fastening system that offers interesting opportunities for plastics molding. The company, called Permanent Technologies, uses a patented system in which the nut has one or more tines that work in conjunction with longitudinal bolt thread channels to prevent counter rotation and loosening. Months-long testing on U.S. Navy Hovercrafts proved the concept. Engineers are often loathe to try new designs, but this is worth a look—particularly if you’re experiencing failures due to vibration. Some cool design ideas are possible. Take a pump assembly for example. Permanent Technologies can produce a cut-out underneath the pump cover and put a hexagon-shaped tine in the hole located in the body of the assembly. Then put the cover on and put a bolt through the cover. The bolt would then click through the tines just as if they were on top of a nut. You get vibration-proof blind hole fastening. And that translates well into injection molding, where undercuts can be mass produced at high speeds with tool action.
Why would the biggest connector company in the world design and build the first fully functional 3D-printed motorcycle? To show TE Connectivity's engineers what the technology can really do in making working load-bearing production parts, and free up their thinking when approaching design problems.
In his keynote address at the RAPID 2015 conference last week, Made In Space CTO Jason Dunn gave an update on how far his company and co-development partner NASA have come in their quest to bring 3D printing to the space station -- and beyond.
A composite based on a high-performance PEEK-like resin we told you about two years ago when it was still in R&D has now been licensed by the US Naval Research Laboratory (NRL) for commercial manufacturing.
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