2403 Study on Reduction of Thermal Distortion in Carburized Quenching Gear

Abstract

A study on heat treatment process of quenching in order to improve the surface hardness and strength has been carried out for high quality gear of transmission for a vehicle and construction machinery in general. The thermal distortion and quenching crack in the quenched gear occurs, because the gear is suddenly cooled down from high temperature during quenching process. In this study, the thermal distortion and transformation in carburized quenching gear were made clear using a heat treatment and thermal fluid simulations. Also, the reduction method of the thermal distortion was examined.