Experimental analysis of femtosecond laser ablation of spiral bevel gear

In order to study the influence of different energy density on the depth of ablation pit, vhx-600 three-dimensional depth of field detection system was used to measure the ablation pit depth h under different energy density I. as shown in the figure, the ablation pit depth increases with the increase of laser energy density, which is basically consistent with the simulation results. When the surface temperature of gear material reaches the melting temperature, the ablation depth is 8.72 nm

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