Rapid advances in manufacturing technology

Rapid advances in digital manufacturing, particularly additive manufacturing, are changing aviation design and testing.

The aviation company Pratt & Whitney is exploring whether technology known as additive manufacturing could be used to develop more compact jet engines that could make commercial airplanes lighter and more fuel efficient.+
Pratt & Whitney already uses two additive manufacturing techniques to make some engine components. Instead of casting metal in a mold, the methods involve forming solid objects by partially melting a metal powder with either a laser or an electron beam. Other aircraft makers use similar technology; GE, for example, creates fuel nozzles for jet engines using its own additive manufacturing techniques.

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