Welding is a thermal process which results in high strain and stress values in the\nmaterial and leads to its change of phase. This might cause significant distortions in the welded\nstructure, which often becomes a relevant design and manufacturing issue. This study deals with\na line-heating-based forming process that is applied at the moment of the welding operation,\nwith the final objective of minimizing distortion. A FEM (finite element method) based on\na thermo-elastoplastic approach is used here. The computational method is first calibrated in three\nstages: heatline forming calibration, flame heat source calibration, and the weld process. The final\nmodel presented in this work simulates a hybrid process called htTTT (high-temperature thermal\ntransient tensioning) which was optimized over large T welds to minimize the final distortion of\nthe components
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