Hö? This pdf is from MAPNA 2015. So the technics/ovens exists.
https://www.mapnaturbine.com/storage/2020/3/43371584287524751technical%20review-no.3.pdf
Imagine!
A turbine blade made out of Ti super alloy, has to widthstand high shear force, high temperatur, is thin, and have COOLING VANES in...