Aluminum Surface Texturing by Means of Laser Interference Metallurgy

Conference · Thu Jan 01 00:00:00 EST 2015

OSTI ID:1185736

Chen, Jian ^[1]; Sabau, Adrian S ^[1]; Jones, Jonaaron F. ^[2]; Hackett, Alexandra C. ^[3]; Daniel, Claus ^[1]; Warren, Charles David ^[1]

---

1. ORNL
2. University of Tennessee (UT)
3. University of Tennessee, Knoxville (UTK)

The increasing use of lightweight materials, such as aluminum alloys, in auto body structures requires more effective surface cleaning and texturing techniques to improve the quality of the structural components. The present work introduces a novel surface treatment method using laser interferometry produced by two beams of a pulsed Nd:YAG laser operating at 10Hz of frequency to clean aluminum surfaces, and meanwhile creating periodic and rough surface structures. The influences of beam size, laser fluence, wavelength, and pulse number per spot are investigated. High resolution optical profiler images reveal the change of the peak-to-valley height on the laser-treated surface.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1185736
• Resource Relation: Conference: TMS 2015 144th ANNUAL MEETING & EXHIBITION, Orlando, FL, USA, 20150315, 20150315
• Country of Publication: United States
• Language: English