| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals:
ICME Gaps: Material Property and Validation Data to Support Certification
|
| Presentation Title |
High Temperature Material Property Data and Challenges to Thermal Process Model Predictions and In-Situ/Ex-Situ Measurements for Metallic Additive Manufacturing |
| Author(s) |
Joshua Fody, Samuel Hocker, Joseph Zalameda, Wesley Tayon |
| On-Site Speaker (Planned) |
Joshua Fody |
| Abstract Scope |
Understanding and predicting as-built mechanical properties of parts produced by metallic additive manufacturing has improved significantly over the past decade; however, difficult to measure material properties and process outcomes continue to be challenges. The qualification or certification of aerospace parts require extensive measures to quantify variable properties of the parts in order to reduce the risk of component failure. The variability, inherent to the additive manufacturing process, adds unwanted uncertainty in the production of load critical structural components. Process modeling has proven valuable in providing predictions and context for understanding outcomes of the additive manufacturing process; however, these physically informed process models require material properties at temperatures that are difficult to measure and rarely available. Furthermore, calibrating or validating the process models is difficult because such ground truth data is challenging to measure. This talk will explore some of the challenges to acquiring and relating calibrated in-situ thermography and ex-situ optical microscopy measurements. |