|About this Abstract
||Materials Science & Technology 2019
||Additive Manufacturing of Metals: Post Processing
||Correlation between Surface Texture and Mechanical Performance of AM Components
||Agustin Diaz, Patrick McFadden
|On-Site Speaker (Planned)
AM-built components show significant surface and near-surface defects, hindering their mechanical properties, and consequently their performance. These defects are usually located within 0.02" (0.5 mm) from the surface, therefore a surface finishing operation capable to remove this amount of metal is necessary to achieve a significant fatigue improvement. However, classical surface finishing processes (based on abrasive action) capable of significant improvement on the surface average roughness (Ra) seems to fail to improve the mechanical performance of AM-built components. The simplistic, yet classical, use of Ra to predict the mechanical fatigue performance is too vague to actually correlate with the performance of AM-built components since it does not account for the micro v-notches shapes and the near-surface defects. In this presentation, we are going to showcase the mechanical performance achieved on AM-built components surface finished by different processes, and a correlation between surface texture and performance will be established.
||Planned: At-meeting proceedings