A copper vapor laser (CVL) of 511/578 nm wavelength, 25 ns pulse width and 10 kHz repetition rate combined with a computer controlled Galvo head was used for laser micromachining of 304 stainless steel. The objectives of this study were determination of the characteristics of laser micromachining process and its optimization. A significant improvement in micromachining quality was observed with a spatially filtered beam. Micromachining experiments were carried out on stainless steel samples of 75, 153 and 356 µm thicknesses.
Topics
Laser micromachining
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