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July 6, 2016. Greenville, South Carolina. <br />
 Kassy Hart, an additive manufacturing engineer, works on a Direct Metal Laser Melting (DMLM) machine to create gas turbine parts. The machine uses additive manufacturing, or 3D printing, processes to create parts in a very short amount of time and with very high tolerances. <br />
 At the General Electric Gas Turbine factory, engineers  design, produce, test and repair gas turbines for generating electricity. These turbines weigh more than 900,000 pounds and can create internal combustion temperatures up to 2,900 degrees F. Depending on the model, one of the GE turbines can produce enough electricity for half a million American households.