Boeing engineers are in the process of replacing the wiring design used for the Dreamliners. It’s not a fix-it’s part of a plan to optimize weight and configuration of wiring bundles starting with plane number seven. The first six planes had flight test wiring that will be replaced as part of an overall refurbishing.As part of the overall materials revolution that the Dreamliner represents, some lightweight aluminum wiring will be used instead of copper. “We use both,” says Boeing spokesperson Lori Gunter, “There are different design considerations. We select the material that is appropriate for the intended use.”
Gunter did not provide specifics, but the design rules for aluminum and copper used as wiring are the following:
Aluminum is 50 percent lighter than copper and can save weight in the aircraft.
Copper bends more easily than aluminum.
Corrosion is a significant concern for aluminum wiring. Airbus engineers developed a special protection for aluminum wiring. There are also new specifications for connections.
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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