Micromachining of metals with ultra-short Ti-Sapphire lasers: Prediction and optimization of the processing time

• Published in: Optics and lasers in engineering Vol. 48; no. 3; pp. 268 - 271
• Main Authors: Bruneel, D., Matras, G., Le Harzic, R., Huot, N., König, K., Audouard, E.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.03.2010; Elsevier
• Subjects: Ablation rates; Biological and medical applications; Doped-insulator lasers and other solid state lasers; Engineering Sciences; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Industrial applications; Laser processing time; Lasers; Metals processing; Nonlinear optics; Optics; Photonic; Physics; Ultrafast laser processing; Ultrafast processes; optical pulse generation and pulse compression; Ultrafast laser processing; Laser processing time; Metals processing; Ablation rates; Micromachining; Optimization method; Laser assisted processing; Measuring methods; Laser beam applications; Ultrafast optics; Stainless steels; Solid state lasers; Laser beam machining; Copper
• ISSN: 0143-8166; 1873-0302
• DOI: 10.1016/j.optlaseng.2009.10.010

We investigate the processing times of ultrafast laser machining in the case of metals (copper and stainless steel). At a fluence of 2.5 J/cm 2, measurements of processing times are in good agreement with the calculations based on the ablation rates. We study the influence of laser repetition rates for 1, 5, 10 and 15 kHz. A linear reduction of the processing time can be expected with an increase of the repetition rate.