NASA has developed a way to 3-D-print its rocket nozzles
The space agency can finally ensure that additive manufacturing produces parts that withstand the incredible heat experienced by rocket engines.
The news: A newly patented method is called laser wire direct closeout (LWDC). Differing substantially from typical methods of 3-D printing with metal (see “10 Breakthrough Technologies of 2018: 3-D Metal Printing”), it uses a laser and metal wire to create strong metal bonds and precise structures.
The upshot: This process can cut the manufacturing time of rocket nozzles from months to weeks. “Our motivation behind this technology was to develop a robust process that eliminates several steps in the traditional manufacturing process,” says Paul Gradl, a senior propulsion engineer at NASA’s Marshall Space Flight Center. Taking out these steps allows for faster manufacturing.
Next up: The team is looking for additional ways to apply the technology across the industry.
This story first appeared in our future-of-work newsletter, Clocking In. Sign up here!
Deep Dive
Space
How to safely watch and photograph the total solar eclipse
The solar eclipse this Monday, April 8, will be visible to millions. Here’s how to make the most of your experience.
How scientists are using quantum squeezing to push the limits of their sensors
Fuzziness may rule the quantum realm, but it can be manipulated to our advantage.
The great commercial takeover of low Earth orbit
Axiom Space and other companies are betting they can build private structures to replace the International Space Station.
Stay connected
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.