Abstract
Laser micromachining is one of the widely accepted micromachining methods to create microchannels for various applications. One of the major challenges is laser micromachining is to create microchannels with high surface quality. In the present work, the microchannels generated during the CO2 laser micromachining of polymethylmethacrylate substrate are investigated. The laser parameters such as power, machining speed and number of passes were varied to create the micro channels. The nature of surface generated was investigated. The findings will also help attain the optimum process parameters for the laser micromachining of polymethyl-methacrylate.
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