Abstract
This paper focused a two-step procedure to imprint the tailored emblems, patterns, symbols and codes onto the metallic and polymer product surfaces. The laser printing was first used to form these tailored micro-/nano-textures onto a Diamond-Like Carbon (DLC) coating die. The DLC film with the thickness of 20 mm and the hardness of 22 GPa was utilized as a mother die. Femtosecond laser printing was used to shape the tailored micro-/nano-textures on this die. Seven emblems such as a star-patterned texture with the maximum depth of 4 mm were just cut into the DLC-die to have color-grating by micro-texturing and surface plasmonic brilliance by nanotexturing. In second, Computer Numerical Control (CNC) – stamping was used to imprint these textures onto the aluminum alloy plate with the thickness of 1 mm. Scanning Electron Microscopy (SEM) and three dimensional profilometer were used to investigate the geometric accuracy in this two-step printing procedure. The constituent micro-/nano-textures of each emblem was accurately imprinted onto the aluminum work. The optical properties were also duplicated together with this geometric imprinting.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference18 articles.
1. Ministry of Finance, https://www.asahi.com/articles/ASP916DKBP91ULFA00J. html (2021/ 9/2).
2. P. Murugan, M. Krishnamurthy, S. N. Jaisankar, D. Samanta, A. B. Mandal, Controlled decoration of the surface with macromolecules: polymerization on a self-assembled monolayer. Chem. Soc. Rev. 44 (10) (2015) 3212-3243.
3. J. Pina-Estany, A. A. GarciaGranada, E. Corull-Massana, Injection moulding of plastic parts with laser textured surfaces with optical applications. Opt. Mater. 79 (2018) 372-380.
4. Holographic-film.com, holographic films, holographic packaging and holographic papers. http://holographic-film.com/. (Retrieved at 2021/11/15).
5. T. Aizawa, T. Inohara, Multi-dimensional micro-patterning onto ceramics by pi-co-second laser machining. Res. Rep. SIT 56 (1) (2012) 17-26.