• P.P.S.Keerthi
• K.V.Varalakshmi
• M.S.Rao

In the current manufacturing scenario, micromachining is state-of-the-art technology for precision manufacturing. Laser micromachining (LMM) utilizes a laser beam for producing complex shapes and miniature devices on any known material. This process eliminates the use of a physical tool, thereby reducing the problems of tool wear and minimizing the cutting forces on the work material. In LMM, material removal occurs by the localized heating, melting, and subsequent vaporization. Several process parameters govern the process and have a major influence on the machining quality. Therefore, investigating the optimal parameters for achieving the best machining quality is required. In this paper, an attempt is made to review the literature on Laser micromachining process optimization and the most focused process parameters and performance measures have been identified. Furthermore, an attempt is also made to recognize the most used on which LMM has been performed. Finally, this work tries to point out the process parameters, performance measures, materials, and machining operations which have future scope for research in Laser micromachining.

Laser Micromachining, Heat affected zone (HAZ), Pulsed lasers, Pulse frequency

"Laser Micromachining- A review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 7, page no.d253-d259, July-2021, Available :http://www.jetir.org/papers/JETIR2107420.pdf

"Laser Micromachining- A review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 7, page no. ppd253-d259, July-2021, Available at : http://www.jetir.org/papers/JETIR2107420.pdf