Surface microstructures obtained by femtosecond laser pulses

被引：36

作者：

Groenendijk, M. N. W. ^{[1
]}

Meijer, J. ^{[1
]}

机构：

[1] Univ Twente, Dept Engn Technol, Lab Mech Automat, NL-7500 AE Enschede, Netherlands

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2006年 / 55卷 / 01期

关键词：

laser; micromachining; surface texture;

D O I：

10.1016/S0007-8506(07)60394-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

After machining of steel by femtosecond laser ablation unexpected surface structures are found at the bottom of the machined area. Periodic sub-micrometer spaced ripple patterns are formed after irradiation with several pulses. At a certain number of incident pulses the ripples starts to break up resulting in a more chaotic structure. The point of transition and the morphology of the chaotic structure depend on several parameters. The paper describes the ripple formation and the resulting surface structures dependent on the repetition frequency of the laser and the number of incident pulses.

引用

页码：183 / 186

页数：4

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