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An hourglass-like heat source model is developed to simulate the geometry of weld beads of laser beam welding. The welding experiments with different welding parameters were carried out to find whether the welds are full-penetrated or not. The laser powers ranged between 1.0 and 5.0 kW with steps of 1.0 kW. Five levels of the welding speed were used: 1.0, 2.0, 3.0, 4.0, and 5.0 m/min. The numerical...
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