Effects of Pulse Duration on Laser Micro Polishing-Reference-Cited by-同舟云学术

Effects of Pulse Duration on Laser Micro Polishing

Published:2013-03-01 Issue:1 Volume:1 Page:
ISSN:2166-0468
Container-title:Journal of Micro and Nano-Manufacturing
language:en
Short-container-title:

Author:

Vadali Madhu¹,Ma Chao¹,Duffie Neil A.²,Li Xiaochun³,Pfefferkorn Frank E.⁴

Affiliation:

1. Graduate Research Assistant e-mail:

2. Professor Fellow ASME e-mail:

3. Professor ASME member e-mail:

4. Associate Professor Mem. ASME e-mail: Mechanical Engineering Department, University of Wisconsin–Madison, Madison, WI 53706

Abstract

Pulsed laser micro polishing (PLμP) 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 PLμP 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 PLμP. For this purpose, near-infrared laser pulses have been used to polish Ti6Al4V at three different pulse durations: 0.65 μs, 1.91 μs, and 3.60 μs. PLμP 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.

Publisher

ASME International

Subject

Industrial and Manufacturing Engineering,Process Chemistry and Technology,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/micronanomanufacturing/article-pdf/doi/10.1115/1.4023756/5947104/jmnm_1_1_011006.pdf

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