ForschungPublications
Investigation of the surface residual stresses in spray cooled induction hardened gearwheels

Investigation of the surface residual stresses in spray cooled induction hardened gearwheels

Categories Zeitschriften/Aufsätze (reviewed)
Year 2012
Authors Rodman, D., Krause, C., Nürnberger, F., Bach, F.-W., Gerdes, L., Breidenstein, B.:
Published In International Journal of Materials Research, 103 (2012) 1, S. 73-79.
Description

The objective of the current investigation consists of testing the interchangeability of polymer solutions used during induction hardening with water – air spraying regarding compressive residual stresses. Gearwheels made of 42CrMo4 steel were induction hardened and subsequently quenched using water – air spray cooling. The effect of different cooling parameters on the surface’s residual stresses in the gearwheel’s tooth flanks was analyzed by means of X-ray diffraction. The microstructure was characterized by means of hardness measurements and light-microscopy. Residual stresses could be specified after using water – air spray cooling and are comparable to those using polymer quenching. Quench parameters leading to maximum compressive residual stresses in tooth flanks were determined.