Laser processing of materials

Majumdar, J. Dutta ; Manna, I. (2003) Laser processing of materials Sadhana (Academy Proceedings in Engineering Sciences), 28 (3-4). pp. 495-562. ISSN 0256-2499

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Official URL: http://www.ias.ac.in/sadhana/Pdf2003JunAug/Pe1103....

Related URL: http://dx.doi.org/10.1007/BF02706446

Abstract

Light amplification by stimulated emission of radiation (laser) is a coherent and monochromatic beam of electromagnetic radiation that can propagate in a straight line with negligible divergence and occur in a wide range of wave-length, energy/power and beam-modes/configurations. As a result, lasers find wide applications in the mundane to the most sophisticated devices, in commercial to purely scientific purposes, and in life-saving as well as life-threatening causes. In the present contribution, we provide an overview of the application of lasers for material processing. The processes covered are broadly divided into four major categories; namely, laser-assisted forming, joining, machining and surface engineering. Apart from briefly introducing the fundamentals of these operations, we present an updated review of the relevant literature to highlight the recent advances and open questions. We begin our discussion with the general applications of lasers, fundamentals of laser-matter interaction and classification of laser material processing. A major part of the discussion focuses on laser surface engineering that has attracted a good deal of attention from the scientific community for its technological significance and scientific challenges. In this regard, a special mention is made about laser surface vitrification or amorphization that remains a very attractive but unaccomplished proposition.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Laser Processing; Laser-matter Interaction; Laser Surface Vitrification
ID Code:18775
Deposited On:17 Nov 2010 12:25
Last Modified:17 May 2016 03:27

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