Additive Manufacturing for Superalloys - Producibility and Cost Validation (Preprint)

摘要

The primary goal of this project, Additive Manufacturing for Superalloys -- Producibility and Cost Evaluation, is to achieve cost and lead- time reductions of up to 50% for high-temperature static turbine engine components such as diffuser and turbine cases. Such components are used in virtually all aerospace gas turbine engines with the majority of these components fabricated from Alloy 718. These components are made from either forgings or castings. Each of these material forms presents some common and unique issues that result in these parts being some of the most expensive found in the engine. This program addresses these cost-driving issues through the development and implementation of additive manufacturing techniques, resulting in a methodology that can be used to determine the most cost-effective way to fabricate the target structures based on overall part and feature specific geometries. The developed additive technologies can also be implemented into other areas, such as repair, for additional benefits.