Precise Hole Drilling in PMMA Using 1064 nm Diode Laser CNC Machine

Figure 10

The first-stage temperature distribution; exposure time (𝑠)=2.25, total power (𝑊)=0.96, and surfacetemperature=6.0201e+003. The second-stage temperature distribution; exposure time (𝑠)=2.25, total power (𝑊)=0.1782, and surfacetemperature=1.1175e+003. The third-stage temperature distribution; exposure time (𝑠)=2.25, total power (𝑊)=0.19, and surfacetemperature=1.2559e+003. The forth-stage temperature distribution; exposure time (𝑠)=2.25, total power (𝑊)=0.0989, and surfacetemperature=620.196.