Abstract: In order to predict the residual stress and deformation of 2A14 aluminum alloy after quenching, a material model of the 2A14 aluminum alloy during quenching was established with thermal expansion test, high temperature tensile test and material computation method. Based on the on-line measured temperature change during quenching process and the residual stress value after quenching measured by XRD, the surface heat transfer coefficient of the C-ring specimen during quenching was calculated by inverse heat transfer method, and the changes of the temperature, stress and opening distance of the C-ring during quenching process were simulated and calculated. The simulation results shows that the increase of the opening distance of the C-ring after quenching is 0.1158 mm, and the actual measurement is 0.1657 mm, which show that the calculated results are in good agreement with the measured results.

Key words: quenching, inverse heat transfer calculation, residual stress, 2A14 aluminum alloy