Comparison of experimental and simulation distortions of quenched C-ring test parts

TL;DR

This paper compares experimental measurements and simulation results of distortions in quenched C-ring parts, highlighting similarities and differences in distortion amplitudes and analyzing physical causes like phase transformations.

Contribution

It introduces a mathematical method for analyzing 3D distortions and compares experimental data with simulation to understand distortion origins in quenched steel parts.

Findings

Distortions and their tendencies are similar in experiment and simulation.

Amplitude differences exist between measured and simulated distortions.

Physical origins like phase transformations influence distortion patterns.

Abstract

We present a mathematical method for identifying, separating and quantifying the 3D significant distortions. Measurement of a gas quenched C-ring type sample is performed by a Coordinate Measuring Machine (CMM). Quenching simulation is done with the commercial software Forge 2008 TTT. After comparisons, we notice that the distortions and their tendencies are the same but not exactly the amplitudes. We only focus on distortions which have a physical origin, like the pincers opening, often observed in the literature. As a first explanation, we underline the role of phase transformations and volume dilatation of the steel during quenching.