Rocket and scramjet developer Aerojet Rocketdyne is looking to additive manufacturing as a way to sustain production of engines over the long term in the face of a shrinking supplier base. Additive manufacturing is a key part of plans to transform the long-running RL10 upper-stage engine "into an engine for the future," says Scott Seymour, president and CEO of parent company GenCorp. "There is an enormous amount of welding [in the RL10]," Seymour said during a June 3 ...


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