Effects of Pulse Duration on Laser Micro Polishing Academic Article uri icon


  • Pulsed laser micro polishing (PLP) has been shown to be an effective method of polishing micro metallic parts whose surface roughness can approach the feature size. Laser pulse duration in the PLP process is an important parameter that significantly affects the achievable surface finish. This paper describes the influence of laser pulse duration on surface roughness reduction during PLP. For this purpose, near-infrared laser pulses have been used to polish Ti6Al4V at three different pulse durations: 0.65s, 1.91s, and 3.60s. PLP at longer pulse durations resulted in dominating Marangoni convective flows, yet significantly higher reductions in the average surface roughness were observed compared to the short pulse duration regime without convection.

published proceedings

  • Journal of Micro and Nano-Manufacturing

altmetric score

  • 0.5

author list (cited authors)

  • Vadali, M., Ma, C., Duffie, N. A., Li, X., & Pfefferkorn, F. E.

citation count

  • 28

complete list of authors

  • Vadali, Madhu||Ma, Chao||Duffie, Neil A||Li, Xiaochun||Pfefferkorn, Frank E

publication date

  • March 2013