The University of Sheffield investigates resonant frequency measurements to predict the mechanical properties of Ti-6Al-4V

Highly regulated industries such as aerospace and nuclear power long for qualified additively manufactured parts. Therefore, a research team of the University of Sheffield investigated the usage of resonant frequency measurements to predict the mechanical properties of Ti-6Al-4V manufactured by selective laser melting. Using a Renishaw AM 250 printer the team found that a linear model with the resonant frequency peaks as predictors cannot be used to predict elongation at failure or reduction in area. However, linear models did demonstrate better predictive capabilities for Young’s modulus, yield strength, and especially ultimate tensile strength.

The team published their research in the Scientific Report Journal under the title “Investigation into using resonant frequency measurements to predict the mechanical properties of Ti-6Al-4V manufactured by selective laser melting“.

Source: Todd, M. A., Hunt, J., & Todd, I. (2019). Investigation into using resonant frequency measurements to predict the mechanical properties of Ti-6Al-4V manufactured by selective laser melting. Scientific reports, 9.