MACHINING OF HARD-WORKABLE MATERIALS USING TWO LASER BEAMS

Authors

  • P. Dakić Academy of Sciences and Arts of the Republic of Srpska, Bana Lazarevića 1, Banja Luka, Republic of Srpska
  • V. Dakić Dakom, Belgrade, Serbia

DOI:

https://doi.org/10.7251/COMEN1202194D

Abstract

The paper gives an overview of the importance of modern materials in industry and problems regarding their machining. Materials such as: composites, hard metals, different types of ceramics and similar are hard to machine using conventional methods, because of their nature and mechanical properties. One of the ways to solve the machining problem for this type of material is by using a laser beam machining with two beams. In this process each laser beam makes a groove on the working area while the volume of the material lying between the crossover of two beams is eliminated. Theoretical discussion on thermal properties of materials which were subject to laser machining created a mathematical model which was subsequently compared with the experimental results.

References

[1] G. Chryssolouris, Theoretical Aspects of Laser Machine Tool, ASME Winter Annals Meeting Proceedings, PED 20 (2006) 177−190.

[2] G. Chryssolouris, P. Scheng, V. Choi, Investigation of Laser grooving for Composite Materials, Annals of CIRP, 7988, 161−164.

[3] D. Schuocker, Cutting, Industrial Laser, Handbook, 2008, 87−107.

[4] M. Modest, Heat Conduction in a Moving Semi-Infinite Solid Subjected to Pulsed Laser Irradiation, ASME Journal of Heat Transfer, 1108 (2006) 597−601.

[5] V. Konig, Provisional list of Terms for Laser Beam Cutting, CIRP, Cooperative Work, 1997, 537−548.

[6] J. Fleret, B. Ward, Circular and Non-circular Nozzle Exits for Supersonic Gas Jet Assist in CO2 Laser Cutting, Proc. 3rd Intl. Conf. Of Laser in Mfg (LIM 3), Paris 2006.

[7] V. Choi Chryssolouris, Theoretical Aspects of Laser Grooving, Proceedings 14th Conference of Production Research and Technology, 2007, 323−331.

[8] P. Dakić, Laser Grooving Composite Materials, Research Papers, M.I.T. Cambridge 1991, 19−32.

[9] P. Dakić, Izrada žljeba laserskim snopom [Making a groove by laser beam], Naučno-tehnički pregled, Beograd, Vol. 42−2 (2002) 13−18.

[10] P. Dakić, Laser Cutting Graphite Materials, Work Papers, M.I.T. 1990, 27−42.

[11] P. Dakić, Trodimenzionalna obrada materijala laserom [Three-dimensional machining of mate-rials by laser], Naučno-tehnički pregled, Beograd, Vol. 42−1 (2002) 18−23.

[12] P. Dakić, Obrada materijala laserom [Machining materials with laser], Conference Proceedings Heavy Metallurgy, Kruševac 1993, 5−17.

[13] P. Dakić, Analiza procesa obrade kompozitnih materijala laserom [Analysis of the process of ma-chining of composite materials using laser], 25th Conference Proceedings Production Engineering, 2010, 227–234,

[14] P. Dakić, Istraživanje procesa izrade navoja laserom [Research of the process of making folds by laser], VII International Conference on Flexible Technologies MMA 2009, Novi Sad 2009, 3−5.

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Published

2013-02-26