This presentation will provide details on recent work on the qualification of Ti-6Al-4V components additively manufactured with an electron beam powder bed fusion process for air vehicles at Northrop Grumman. This work was primarily conducted on Arcam A2X machines within the past 5 years. Specifically, the following topics will be addressed: 1) material specifications including discussion on powder chemistry, size distribution, flow, and apparent density; 2) process specification requirements including machine qualification, witness coupons, and fabrication processes; 3) material static allowables development, fatigue curve development, and durability and damage tolerances; and 4) non-destructive inspection techniques and probability of detection and effect of defects study results. In addition to presenting the current technology state of electron beam powder bed fusion adoption at Northrop Grumman Aerospace Systems, future work and paths forward will be discussed.
- Determine key material properties for quality control in air vehicle components manufactured with electron beam powder bed fusion
- Define qualification process for air vehicle components manufactured with electron beam powder bed fusion
- Discuss non-destructive inspection methods and requirements for air vehicle components manufactured with electron beam powder bed fusion
Why Is It Important?
Additive manufacturing is an evolving and emerging technology important in the Aerospace community. This presentation will discuss work done on the qualification process of electron beam powder bed fusion at Northrop Grumman.