Courtesy of Laserinstitut Hochschule Mittweida.
Stainless steel polishing is a finishing technique to achieve a specific or unique finish to a metal surface.
Stainless steel is a widely used alloy with rust-free and heat-resistant properties. Various applications, from consumer electronics to medical tools manufacturing, use stainless steel. Femtosecond lasers can engrave numerous types of stainless steel and change its surface properties.
Ultrashort pulsed laser radiation forms a typical micro-cone structure. The measured roughness of the structure is Sa approx. 6 µm, Sq approx. 8 µm and Sz over 30 µm. As a result, the bottom of the structure looks dark grey and does not have a metallic shine. It is possible to completely smooth the micro-cone structure by subsequent smoothing with GHz burst mode. This smoothing results in roughness with Sa and Sq below 0.2 µm and Sz below 2 µm.
- 190 fs – 20 ps 连续可调脉宽
- 最大单脉冲能量 2 mJ
- 最大输出功率 80 W
- 单脉冲 – 2 MHz 重复频率
- 脉冲选择器功能，可按需输出脉冲
- BiBurst 脉冲串模式
- 风冷型号
- 100 fs – 20 ps 连续可调脉宽
- 最大单脉冲能量 4 mJ
- 最高输出功率 20 W
- 单脉冲 – 1 MHz 重复频率
- BiBurst 脉冲串功能
- 自动谐波发生器（高达 5 次谐波）
Optimization of the ablation process using ultrashort pulsed laser radiation in different burst modes
D. Metzner, P. Lickschat, and S. Weißmantel, Journal of Laser Applications 1 (33), 012057 (2021).
High-quality surface treatment using GHz burst mode with tunable ultrashort pulses
D. Metzner, P. Lickschat, and S. Weißmantel, Applied Surface Science 531, 147270 (2020).