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Material Improvement by Laser Radiation

#1259


Development of Industrial Technology of Magnetic Properties of Electrotechnical Materials Improvement by Pulse - Periodic CO2 - Laser Radiation

Tech Area / Field

  • MAN-MAT/Engineering Materials/Manufacturing Technology

Status
3 Approved without Funding

Registration date
19.04.1998

Leading Institute
NIIEFA Efremov, Russia, St Petersburg

Supporting institutes

  • Ural Branch of RAS / Institute of Metal Physics, Russia, Sverdlovsk reg., Ekaterinburg\nVNIIEF, Russia, N. Novgorod reg., Sarov

Project summary

The purpose: The purpose of the appeared project is complex researches of influence of pulse-periodical CO2-laser radiation on various types of materials, that processing by the laser, high-quality anisotropy steel with a large crystal grain, most thin ribbons of anisotropy electrotechnical steel (0.1 mm and it is less), amorphous ribbons of soft magnetic iron-base alloys. Opportunities of the used equipment (CO2-laser and other experimental equipment) allow to carry out complex researches of interaction process of laser radiation with material in conditions, similar to conditions of industrial production of such materials. In this project processing of electrotechnical materials on the rolling mill with speed of a movement up to 1 m/s will be modeling. The main aims of the appeared project are: the investigation of efficiency of different materials laser processing; the processing regimes optimization in dependency of thickness for various types of electrotechnical materials; modeling of specialized laser radiation scanning system work, that allow to treat a strip of material with width up to 80 sm in one short (10 - 20 mcs) pulse of laser radiation.

The technical approaches: For successful realization of the above project it will be necessary to apply the next technical approaches: scientific researches of efficiency of laser processing in dependence from distribution of laser radiation field; the experimental study of optimum regimes of material processing, the development of optical circuits of the system of laser radiation scanning; experimental testing of some optical elements work.

The expected results: Under the program, financed earlier from the state budget, preliminary results were received. The efficiency of laser processing has been achieved 10 % and more decreasing of core losses at processing of steel samples with grade 3408 (standard of Russia) and 0.3 mm thickness. Increase of useful effect up to 15 % and more is expected at processing more high-quality steel and also at reduction of thickness of processing material.


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