PT  - JOURNAL ARTICLE
AU  - Wu, Chang
AU  - Sun, Songsong
TI  - Research of the Quenched Crankshaft Fatigue Property Based on the Multi-physics Coupling Analysis and the Theory of Critical Distance
DP  - 2022 Dec 11
TA  - Manufacturing Technology Journal
PG  - 624--632
VI  - 22
IP  - 5
AID - 10.21062/mft.2022.068
IS  - 12132489
AB  - Nowadays the electromagnetic induction quenching approach has been widely applied in the surface treatment process, especially for the parts made by metal materials such as the crankshafts. In this paper, quantitative study was adopted in researching the strengthening effect of this technique. First the multi-physics simulation was achieved to carry out the key information caused by this approach such as the temperature and residual stress distribution property. Then the fatigue limit load prediction was conducted based on the simulation results and the theory of critical distance. Finally corresponding experimental verification was performed to check the accuracy of the predictions. The results showed that the combination of the critical point method and the Goodmen mean stress model can provide highest accuracy in the prediction. While for the critical line method, the Gerbera mean stress model is the most suitable choice.