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Predicting the Heat-Treat Response of a Carburized Helical Gear - November/December 2002

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Archive > 2002 > November/December 2002 > Predicting the Heat-Treat Response of a Carburized Helical Gear

The article "Predicting the Heat-Treat Response of a Carburized Helical Gear" appeared in the November/December 2002 issue of Gear Technology.

Summary
Using the DANTE software, a finite element simulation was developed and executed to study the response of a carburized 5120 steel helical gear to quenching in molten salt. The computer simulation included heat-up, carburization, transfer and immersion in a molten salt bath, quenching, and air cooling. The results of the simulation included carbon distribution of phases, dimensional change, hardness, and residual stress throughout the process. The predicted results were compared against measured results for hardness, dimensions and residual stress. The excellent agreement between predictions and measured values for this carburized 5120 steel gear provides a basis for assessing the various process parameters and their respective importance in the characteristics of not only these heat-treated parts, but of other compositions and shapes.

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