Precise hole drilling in PMMA using 1064 nm diode laser CNC machine

Abstract

This paper represents the outcome of efforts that intended to achieve laser hole drilling execution in polymethylmethacrylate (PMMA) of 2.5mm thickness using 1064nm diode laser of 5W output power. Different laser beam powers, exposure time, and positions of the laser spot were taken into consideration with respect to the workpiece. The workpieces were tested in the existence of low-pressure assist gas (20-60mmHg of air). The experimental results were supported by the predicted results of the analytical model. Copyright © 2011 Jinan A. Abdulnabi et al.