Investigation of Gear Heat Treatment by Use ELTA 7.0


The induction contour hardening of external gear is the most effective technology to increase steel hardness. A great deal of research using 3D software has been carried out and published in this field of knowledge. In order to perform these tasks more efficiently the authors offered new version of ELTA with special Gear Application. An idea of 2D gear model and structure of ELTA is described. FDM with internal coupling of EM and thermal problems according to a Total Flux Method for external electromagnetic problem is used. ELTA can calculate integral parameters of inductor, temperature field and power sources distribution in the cross-section of gear. Investigation may be simpler and faster than in the case of 3D simulation. Several examples of induction hardening taken into account variable frequency of power source and single or double frequency process are presented.