GE Aviation has so much faith in 3D printing that it will soon relocate its Sharonville facility to a much larger space. GE bought what used to be called Morris Technologies in 2012. Morris was the first to introduce 3D metallic based technology to North America.
The technology works by taking a very fine grain metal powder and thinly layering it using a laser. This is different than taking solid material and subtracting it to make a part, like is done in machining.