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2002 №11 (01) 2002 №11 (03)

The Paton Welding Journal 2002 #11
The Paton Welding Journal, 2002, #11, 7-11 pages

Improvement of efficiency of laser treatment using off-axis beams focused by mirror systems

V.V. Roman

National Technical University of Ukraine «КРI», Kyiv, Ukraine

Abstract
Method of forming space characteristics of a laser beam, based on a mathematical model of the process of radiation focusing using a spherical mirror and method of evaluation of effect of space characteristics of the laser beam on thermal state of the body being radiated, is suggested. With its use the optimum space distribution of heat source on the material surface is reached, resulting in the improvement of the efficiency of the laser treatment and widening of its technological capabilities.
Keywords: laser treatment, mirror systems, off-axis beams, beam power, efficiency

References

1. Chachin, V.N., Kardopolova, M.A., Spiridonov, N.V. et al. (1991) Reduction of cracking in surface melting of coatings from self-fluxing alloys by laser beam. Fizika i Khimiya Obrab. Materialov, 1, 125-131.
2. Zvelmo, O. (1990) Principles of lasers. Moscow: Mir.
3. Rykalin, N.N., Uglov, A.A. (1969) Temperature field of dissimilar materials in butt welding with surface source. Fizika i Khimiya Obrab. Materialoc, 5, 13-23.
4. Grigoriants, A.G., Shiganov, I.N. (1988) Laser technique and technology. Vol. 5. Laser welding of metals. Moscow: Vysshaya Shkola.
5. Huonker, M., Waibel, G., Giesen, A. et al. (1997) Fast and compact adaptive mirror. In: Proc, of SPIE on Lasers in Material Processing, Vol. 3097.
6. Kovalenko, V.S., Golovko, L.F., Chernenko, V.S. (1990) Strengthening and alloying of machinery parts by laser beam. Kviv: Tekhnika.
7. Golovko, L.F., Roman, V.V., Kanso Ziyad (1999) Non-traditional use of spherical mirrors in laser treatment . Naukoci Visti NTTU «KPI», 2. 85-90.
8. Golovko, L.F., Roman, V.V., Duveyko Dzhavad (2002) Influence of space-time distribution of laser beam on thermal state of body being radiated. Ibid., 1, 80-86.
9. Golovko, L.F., Roman, V.V. Device for laser beam focusing in spot with preset characteristics. Pat. 42237A Ukraine, Int. Cl. В 23 К 26, 06. Publ. 15.10.01.

Suggested Citation

V.V. Roman (2002) Improvement of efficiency of laser treatment using off-axis beams focused by mirror systems. The Paton Welding J., 11, 7-11 .