Boeing uses first FAA-approved 3D-printed parts for the 787
 

Boeing expects to shave $2 to $3 million off each 787 Dreamliner's manufacturing costs by 2018, thanks to 3D-printed titanium. The company has teamed up with Norwegian company Norsk Titanium to create the first printed structural titanium components...

https://www.engadget.com/2017/04/11/...ed-metals-787/