Experimental and simulation studies on temperature field of 40Cr steel surface layer in grind-hardening
by L. Zhang, P.Q. Ge, J.H. Zhang, Z.J. Zhu, Z.Y. Luan
International Journal of Abrasive Technology (IJAT), Vol. 1, No. 2, 2007

Abstract: The grinding heat is utilised to induce martensitic phase transformation and strengthen the surface layer of 40Cr steel by raising surface temperature higher than austenitic temperature and cooling quickly. Experiments were performed with different grinding conditions. Semi-natural thermocouple is used to measure the temperature field development of 40Cr steel surface layer in grind-hardening. Temperature field development of alloy steel 40Cr is simulated by finite element method in grind-hardening. Comparison between simulated results obtained from the finite element model and experiment results reveals a good agreement. The maximal surface temperature is smaller when the table speed is slower, but the hardness depth is deeper.

Online publication date: Fri, 12-Oct-2007

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