Generation of high-saturation two-level iridescent structures by vibration-assisted fly cutting

Generation of high-saturation two-level iridescent structures by vibration-assisted fly cutting

Blog Article

The submicron-level structured surface Outbreak of Puumala Virus Infection, Sweden induces viewing-angle-dependent iridescence, and has wide applications in multi-color printing, micro-display projection, invisibility cloak technology.In this study, several types of two-level structures, which consist of the first-order micro geometric features corresponding to the pattern shape and the second-order submicron grooves corresponding to the diffraction grating, are designed to directly induce a variety of iridescent patterns based on their shape regulations.To fabricate these two-level iridescent structures with high accuracy in a single step, vibration-assisted fly cutting (VAFC) is proposed.VAFC involves the low-frequency vibration of the workpiece in the vertical direction during the feed in the horizontal direction and the high-speed rotation of the diamond cutting tool.

A 3D theoretical model Epidemiological Aspects and Differential Diagnosis of the Cutaneous Round Cell Tumors in Dogs is established for the numerical simulation of the generating process of the iridescent structures and the regulation of the first-order geometric feature by vibration parameters.As the key parameter to the iridescent color, the spacing of the second-order submicron grooves is flexibly controlled by the feed rate.A VAFC platform is developed to fabricate the two-level structures and an optical detection system is setup to test the surface iridescence.Various vivid colors are regulated by the two-level structures with high saturation and uniformity.