Induction Heating of Gear Wheels in Consecutive Contour Hardening Process

Abstract

Induction contour hardening of gear wheels belongs to effective heat treatment technologies especially recommended for high-tech applications in machinery, automotive and aerospace industries. In comparison with long term, energy consuming conventional heat treatment (carburizing and consequent quenching), its main positive features are characterized by high total efficiency, short duration and relatively low energy consumption. However, modeling of the process is relatively complicated. The numerical model should contain both multi-physic and non-linear formulation of the problem. The paper concentrates on the modeling of rapid induction heating being the first stage of the contour induction hardening process which is the time consuming part of the computations. It is taken into consideration that critical temperatures and consequently the hardening temperature are dependent on the velocity of the induction heating. Numerical modeling of coupled non-linear electromagnetic and temperature fields are shortly presented. Investigations are provided for gear wheels made of a special quality steel AISI 300M. In order to evaluate the accuracy of the proposed approach, exemplary computations of the full induction contour hardening process are provided. The exemplary results are compared with the measurements and a satisfactory accordance between them is achieved.

Data-Driven Inverse Problem for Optimizing the Induction Hardening Process of C45 Spur-Gear

“…However, it is known that the tooth tip and the tooth root are influenced by the high and medium frequencies of the process, respectively [64][65][66]. The generators work simultaneously under the same heating time; hence, it is possible to consider the problem based on the specific location in the gear in order to obtain more information about the different process parameters such as:…”

Modeling of the Temperature Regimes in a Layered Bimetallic Plate under Short-Term Induction Heating

“…One of the important usages of induction heating is the strengthening of gears [14,15]. Induction contour strengthening of gears is an effective heat treatment technology recommended for high-tech applications in engineering and aerospace.…”

Research Progress on Magnetic Catalysts and Its Application in Hydrogen Production Area

“…Electromagnetic induction heating technology has been exploited for a wide range of applications in the past, involved in steel metallurgy [4,5], biomedical technologies for drug release [6][7][8][9][10], and disease treatment by magnetic hyperthermia [11][12][13] and thermo-magnetism [14]; moreover, nowadays, due to the successful application of catalytic oxidation reaction [15] and strong endothermic reaction [16] by magnetic nanoparticle heating, it has been widely concerned by researchers. The heating can be generated directly on the catalyst active site by using induction heating technology, which can substantially exceed the volume temperature of the surrounding reaction medium and lead to significant accelerations of chemical reactions [17]; it is also important that the reactor wall is not exposed to the high temperatures in this process.…”