A finite element model(FEM) based on numerical model is established to study the process of laser-assisted pre-stress forming and further verified with experimental data.Based on the verified FEM model,the effects of pre-stress and laser parameters on forming efficiency are investigated via a set of dimensionless quantities.A higher pre-stress level results in a higher forming efficiency in the elastic range.A larger beam radius at constant scanning velocity and power density,or a higher power at constant scanning velocity and beam radius,or a faster scanning velocity at constant beam radius and injected energy,results in a higher forming efficiency
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