Calibration of Finite Element Model of Titanium Laser Welding by Fractional Factorial Design

This paper focuses on the calibration of heat source parameters to reproduce temperatures and distortions in welded joints. Specifically, proposed methodology, which combines Finite Element Method Design Experiments, is applied calibrate a T-joint dissimilar titanium laser welding process. The thermal problem addressed using 3D transient model with Conical Gaussian flux, mechanical tackled elastic-plastic model. A Fractional-Factorial performed define set thermo-mechanical uncoupled models. Finally, optimal parameter combinations that replicate experimental data are identified. methodology allows automation replaces traditional trial error process, frequently does not provide good results, an exhausting task requires dubious amount time.