Extrapolation of Almen Control to Laser Shock Processing

Unlike the Almen control available for shot peening, no controlling solutions are proposed for laser shock processing at the industrial level to relate the processing parameters to results. This may cause time loss in preparing the convenient parameters to obtain desired results. The current work presented experimental and numerical studies evidencing the possible application of the Almen control in laser shock processing, where the exposition time considered in shot peening is substituted by the laser pass repetitions. C75 Almen-like strips of type “A” and “C” are used in this work. The obtained results confirmed the idea that laser shock evidence a saturation trend with laser pass repetitions. This trend was investigated by Almen gauges to measure strip curvatures and to deduce the Almen Intensities of the process parametrization. This finding demonstrated the possible extrapolation of the Almen control to laser shock processing allowing an easier parametrization at the industrial level.