Core loss reduction in grain-oriented silicon steels by excimer laser scribing

Journal of Materials Processing Technology - Tập 112 - Trang 199-204 - 2001
Satish V Ponnaluri1, Ramachand Cherukuri1, P.A Molian1
1Department of Mechanical Engineering, Iowa State University, Ames, IA 50014, USA

Tài liệu tham khảo

Neiheisel, 1986, Full production laser processing of electrical steel, SPIE Laser Process.: Fund. Appl. Syst. Eng., 668, 116, 10.1117/12.938892 Moses, 1990, Electrical steels past, present and future developments, IEE Proc., Part A, 137, 233 Armco Corporation, Home Page, http://www.armco.com/brochure/product/Electric/Electric.html. G. Ravisankar, Laser processing for enhancement of energy efficiency in transformers, M.S. Thesis, Iowa State University, Ames, IA, 1997. D.M. Haynes, D.S. Wolford, US Patent No. 2,234,968 (1924). W. Pepperhoff, A. Fieldler, US Patent No. 3,647,575 (1972). Zehetbauer, 1982, On the mechanism of domain refinement due to scratching, Jpn. J. Appl. Phys., 21, L580 D. Snell, G. Lockhart, The effect of spark ablation on the power loss of grain oriented electrical steels, in: Proceedings of the Soft Magnetic Materials Conference, SMM7, Blackpool, 1985, pp. 153–155. Luchi, 1982, Laser processing for reducing core loss of grain oriented silicon steel, J. Appl. Phys., 53, 2410, 10.1063/1.330828 G.L. Neisheisel, J.W. Schoen, US Patent No. 4,456,812 (June 1984). Krause, 1984, Effect of laser scribing on the magnetic properties and domain structure of high permeability 3% Si–Fe, J. Appl. Phys., 55, 2121, 10.1063/1.333583 Pohong Iron and Steel Company Ltd., Home Page, http://www.posco.co.kr. P. Srinivas, Enhancement of the energy efficiency characteristics of magnetic materials by laser annealing and scribing, M.S. Thesis, Iowa State University, Ames, IA, 1994. N. Bloembergen, Fundamentals of laser–solid interactions, in: Proceedings of the Applications of Lasers in Materials Processing, Washington, DC, April 18–20, 1979.