CO2 laser processing for reducing core loss of cold-rolled grain-oriented silicon steel
S C Patil G Swaminathan Manoj Kumar P V Sastry S B Ogale S M Kanetkar A Pramanik
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Non-contact processing technique involving the use of CW and pulsed CO2 laser irradiation has been used for reducing the core loss of cold-rolled grain-oriented silicon steel. Laser scribing perpendicular to the rolling direction resulted in a refinement of domain wall spacing which subsequently reduced the loss of silicon steel. It was found that laser irradiation was more effective in a specimen with higher magnetic induction (Hi-B) and the loss was reduced by more than 10% under optimum conditions of the laser irradiation and the scribing speed. Since laser processing is a non-contact technique, it can be easily applied to the production line of the silicon steel.
S C Patil1 G Swaminathan1 2 Manoj Kumar1 2 P V Sastry1 2 S B Ogale1 S M Kanetkar1 A Pramanik1 2
Volume 45, 2022
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Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
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