Laser Deposition for Manufacture of Titanium Cast Parts

Optomec proposes to develop the capability to use the laser deposition process to provide an alternative for investment casting for aerospace-grade Ti-6-4 components. Previous data suggests that laser deposition can be a viable manufacturing route forthese components. We will investigate the mechanical properties of laser-deposited material in thick sections, to determine whether laser deposition can be used for large components. We will use the feedback control sensors of the process to understanddefect formation, and determine whether real-time process checks can be used to eliminate defects. We will evaluate the microstructural and chemical properties to ensure compliance with the relevant standards, and we will evaluate non-destructive testingtechniques to determine whether they can adequately screen laser-deposited material. The outcome will be an assessment of the process relative to casting, and an identification of components and methods to successfully develop and introduce the technologyto the Navy.