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Underwater pulsed laser beam cutting with a case study

N. Roy, A.S. Kuar and S. Mitra,    Jadavpur University, Kolkata, West Bengal, India

Abstract

This chapter gives an overview of a nanosecond pulsed neodymium-doped yttrium aluminum garnet (Nd:YAG) laser beam cutting at submerged condition. A brief illustration of basic nanosecond pulsed laser beam workpiece material interaction is given here; the illustration considers generation of photon and interaction with electron to generate heat, absorption of heat, phase transformation, plasma generation, ablation and removal mechanism of cut material from the irradiate region, both at dry and submerged conditions. The reason to use a water environment during laser beam cutting is discussed in ...

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