Einfluß von Induktiv-Härtungsparametern auf die Schwingfestigkeit von Gesenkschmiedeteilen

From previous research projects it was known that the best increase in fatigue strength against vibratory stress out of all conventional surface retreatment methods could be achieved for die forged specimens of similar component shape by induction hardening. In the framework of a next study the correlation between material, tempering stage, effective hardening depth and fatigue strength under vibratory stress was established taking particular account of the microstructure, the progression of the hardening process, residual stress and the hardening parameters.