December 2, 2014
There’s a great deal of testing that goes into airplane parts to be sure they can handle the temperatures and stresses of aviation. Alcoa would know. The 125 year old metals producer makes parts for gas turbine engines used by Boeing and Airbus. The problem? All that testing takes time. Between tooling, development, and casting, it used to take Alcoa a year to manufacture one of the nickel-alloy parts that go into an engine, where it must withstand temperatures of up to 2,000˚F. Then, writes Fortune (Dec. 1, 2014), the company discovered additive manufacturing—better known as 3-D printing.


