|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Beyond the Beam III
||Temperature Influence on Microstructure and Mechanical Behavior During Deposition of Solid-State Additively Manufactured Aluminum Alloy 7050
||James Tew, Malcolm Williams, Christopher Williamson, Ryan Kinser, Bret Cordle, James Jordon, Paul Allison
|On-Site Speaker (Planned)
In this study, Additive Friction Stir Deposition (AFSD), a thermo-mechanical solid-state additive manufacturing process, is employed to repair AA7050 plates with a simulated damage-groove and the results of the following parametric study are discussed. Initially, a range of parameters in a 3x3 matrix of process variables including tool rotation, actuator federate, and traverse velocity were tested with a constant damage-groove geometry. Throughout this process, thermal data was recorded using temperature sensing equipment including a pyrometer, thermocouple, and thermal camera, which determined the impact of heat input to the deposition process. Process parameter sets with macro-structural defects like galling and excess flash will be contrasted by successful repairs that display a fully bonded and mechanically strong microstructure with hardness plots describing the strength of the various repair zones. Finally, alternate groove geometries were tested to prove the robust nature of the AFSD repair process for use in various military applications.
||Additive Manufacturing, Aluminum, Mechanical Properties