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Optimizing the temperature field during laser processing of materials using radiation focusators

S.P. Murzin1

1 Samara National Research University, 443086, Samara, Russia, Moskovskoye Shosse 34

 PDF,370 kB

Pages: 96-99.

Full text of article: Russian language.

Abstract:
The authors have developed a model for managing the thermal impact on structural materials of energy sources with spatio-temporal modulation of the power density distribution. They also performed theoretical and experimental research of the temperature fields found in the materials during laser thermal treatment with radiation focusators [1]. The authors performed theoretical and experimental research of the formation of the required temperature field in the materials, and developed a method for determining the required heat flux. This provided for the situation when the tool (the light spot shape and the radiation intensity distribution of a laser beam) was designed according to the technological needs, and not vice versa. The temperature fields were monitored by an optoelectronic system for analyzing the fluxes of thermal radiation from the object. An experimental verification of the temperature field distribution over the depth of the heat-affected zone was performed by the methods of metallographic analysis. Experimental research demonstrated that the calculated temperatures for the selected group of materials in wide ranges of movement speed (V = (2...30). 10-3 m/s) and power (Qp = (0.2...1). 103 W) were in satisfactory agreement with the results of the experimental estimate (error δ ≤ 15..25%).

Keywords:
temperature field, laser processing, radiation focusator, temperature field, laser beam, optoelectronic system, metallographic analys.

Citation:
Murzin SP. Optimizing the temperature field during laser processing of materials using radiation focusators. Computer Optics 2001; 22: 96-99.

References:
  1. Soifer VA, ed. Methods of computer optics [In Russian]. Moscow: "Fizmatlit" Publisher; 2000.
  2. Ready JF. Industrial applications of lasers. 2nd ed. San Diego, CA: Academic Press; 1997.
  3. Rykalin NN, Uglov AA, Zuev IV, Kokora AN. Laser and electron beam processing of materials [In Russian]. Moscow: "Mashinostroenie" Publisher; 1985.
  4. Grigoryants AG. Fundamentals of laser processing of materials. Moscow: Mashinostroenie Publisher; 1989: 304.
  5. Danilov VA, Popov VV, Prokhorov AM, Sisakian IN, Sagatelian DM, Soifer VA, Sisakian EV, Naumidi LP, Danileiko JK, Terekhin JD, Akopian VS, Shorin VP, Mordasov VI, Murzin SP. Device for laser treatment of an object. Pat. US 5103073 of April 7, 1992.

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