Investigation of Al-6061 alloy in face milling through DFA approach

Singh, Kamaljeet; Sharma, Vijay Kumar; Singh, Talvinder; Rana, Mohit; Goyal, Rakesh; Rana, Ajay

doi:10.1016/j.matpr.2023.03.031

Cited by 2 publications

(1 citation statement)

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“…Coloring copper is particularly interesting due to its well‐known characteristics, such as high electrical and thermal conductivity, making it ubiquitous in its microelectronic and power electronics industries. [ 1 ] Copper can also be laser printed into flexible wearable materials, [ 2 ] however, a non‐invasive, non‐destructive, and ultra‐precise technique for coloring its delicate surface remains elusive.…”

Section: Introductionmentioning

confidence: 99%

Efficient Composite Colorization of Copper by Spatially Controlled Oxidation with Deep‐UV Ultrafast Lasers

Groussin,

Martinez‐Calderon,

Beldarrain

et al. 2023

Advanced Optical Materials

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Colorizing metals using micrometer and nanometer scale surface modifications has been vastly investigated and presents many advantages for applications across scientific and technological fields. By tuning the surface chemical composition or controlling its morphology, it is possible to produce a wide range of chromatic effects. Ultrafast laser processing presents here an interesting asset, as it allows to simultaneously provide chemical and morphological modifications at the micro‐scale in a single step. In this article, the composite colorization of copper surfaces with mW‐class average power deep ultraviolet (DUV) femtosecond laser pulses is demonstrated. The advantages of this setup are twofold: first, thanks to the increased absorption of copper in the DUV, the technique allows scaling down the requirement for laser power. Second, under ultrafast short‐wavelength illumination molecular oxygen bond‐breaks occur, enhancing the oxidation rate of the copper. The technique allows for highly controllable and efficient copper oxidation with the irradiation parameters. Taking these two effects into account, the generation of a wide spectrum of colors—from dark blue to shiny red—is demonstrated, and the role of the surface oxidation rate, the laser fluence, and laser scanning strategies in the colorization of copper surfaces employing DUV lasers is discussed.

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Section: Introductionmentioning

confidence: 99%