Simulation and Experimental Verification of W9Mo3Cr4V HSS Temperature Field in Cryogenic Treatment

In the cryogenic treatments process, the temperature distribution in a work-piece of high speed steel (HSS) is crucial to the effectiveness of the treatment. However, determination of temperature field during the cryogenic process is difficult. In this study, the temperature distribution in W9Mo3Cr4V HSS bars with a diameter of 24mm during cryogenic treatment was investigated using thermocouples so that obtained the optimization of process parameters and improve the high speed steel tool life. Temperatures at different nodes and their variations with time were measured and numerically studied using Pro/E, Workbench and Fluent software. Results from both the simulation study and experimental measurement are in good agreement, indicating that the temperature distribution inside a work-piece during cryogenic treatment can be determined using a combination of simple tests and numerical simulation, and finally provided a theoretical guidance for making the reasonable cryogenic treatment procedure.