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J. Manuf. Mater. Process. 2018, 2(3), 51; https://doi.org/10.3390/jmmp2030051

Molecular Dynamics Simulation Study of Liquid-Assisted Laser Beam Micromachining Process

Department of Mechanical Engineering, California State University Fullerton, Fullerton, CA 92831, USA
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Received: 29 June 2018 / Revised: 30 July 2018 / Accepted: 6 August 2018 / Published: 9 August 2018
(This article belongs to the Special Issue New Findings and Approaches in Machining Processes)
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Abstract

Liquid Assisted Laser Beam Micromachining (LA-LBMM) process is an advanced machining process that can overcome the limitations of traditional laser beam machining processes. This research involves the use of a Molecular Dynamics (MD) simulation technique to investigate the complex and dynamic mechanisms involved in the LA-LBMM process both in static and dynamic mode. The results of the MD simulation are compared with those of Laser Beam Micromachining (LBMM) performed in air. The study revealed that machining during LA-LBMM process showed higher removal compared with LBMM process. The LA-LBMM process in dynamic mode showed lesser material removal compared with the static mode as the flowing water carrying the heat away from the machining zone. Investigation of the material removal mechanism revealed the presence of a thermal blanket and a bubble formation in the LA-LBMM process, aiding in higher material removal. The findings of this study provide further insights to strengthen the knowledge base of laser beam micromachining technology. View Full-Text
Keywords: laser beam machining; molecular dynamics; liquid-assisted laser beam machining; molecular dynamics; liquid-assisted
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Menon, V.A.; James, S. Molecular Dynamics Simulation Study of Liquid-Assisted Laser Beam Micromachining Process. J. Manuf. Mater. Process. 2018, 2, 51.

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