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GE Aviation completes T901 turboshaft testing for the US Army’s Improved Turbine Engine Program

There's no specific mention of laser or EBM additive manufacturing but both are implied.

At geaviation.com - GE Aviation completes T901 turboshaft testing for the US Army’s Improved Turbine Engine Program - October 9, 2017

The T901 incorporates extensive use of advanced manufacturing and high-temperature material technologies initially developed and matured for GE's commercial jet engines, such as ceramic matrix composites (CMCs) and additive manufactured components pioneered on the best-selling LEAP and GE9X engines. These innovations—which dramatically reduce fuel consumption and lower aircraft operating weight—will have millions of hours of operating experience by the time the T901 enters production, enabling the engine to meet or exceed the Army's aggressive performance targets with field-proven, low-cost technologies.

The T901 will utilize a significant number of additive parts, leveraging investments in new production plants, equipment and designs utilized for GE’s commercially-funded programs such as the Advanced Turboprop (ATP) for the Cessna Denali. Additive manufacturing allows GE to build complex parts with advanced, 3D shapes at lower weight and with better performance and durability. For example, the T901 includes an additive part that reduces an assembly of more than 50 subcomponents into one part. To learn how GE utilizes additive manufacturing to build parts, watch this YouTube video by clicking here.

“With traditional machining and fabrication methods, individual parts are machined into finished parts from castings or forgings and built into assemblies using welding/brazing or bolted joints,” said Hutter. “On the T901, additive manufacturing reduces weight by minimizing attaching features in assemblies. Additive also allows for more advanced aerodynamic shapes, leading to better engine performance, reliability and durability for the Army.”
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To read the T901 white paper, click here.
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GE’s T901 Turboshaft Engine: Inspired by experience
GE Aviation - Published on Oct 8, 2017
As Apache and Black Hawk helicopters add capabilities and associated weight, they are also required to perform at higher and hotter conditions than they were designed for. This has led to the need for additional power.
In response, the U.S. Army launched the Improved Turbine Engine Program (ITEP) to seek a new turboshaft engine to provide 50% more power, 25% better specific fuel consumption while reducing life cycle costs.
Inspired by four decades of U.S. Army rotorcraft experience, GE responded to this need by designing the new T901. Building on an unparalleled record with the U.S. Army’s Apache and Black Hawk helicopters, the T901 meets all ITEP requirements with fewer parts, a simpler design, and proven, reliable technology. GE stands ready to take the U.S. Army into the future of rotorcraft aviation.