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《Chinese Journal of Lasers》 2008-11
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Beam Optimum System for Laser Heat Treatment

Wang Yunshan Wang Juanjuan Zhu Fudong(Laser Processing Center,Tianjin Polytechnic University,Tianjin 300160,China)  
It is great that the influence of laser beam intensity distribution and its shape on laser hardened layer performance.Rectangle facula or wide-band facula are applied widely.But laser beam of uniform intensity distribution can not always generate uniform hardened layer.At present,using general laser heat treatment beam optimum equipment,the distribution shape of laser hardened layer was crescent.Based on the analysis of research on beam optimum system for laser heat treatment in the world,two different methods on laser beam optimum are present in order to improve distribution uniformity of hardened layer.Laser scanning ring facula and linear facula are analyzed in the new methods.The mathematic models of laser beam optimum are built and their temperature field distributions are simulated.The distribution uniformity of the hardened layer is improved.
【Fund】: 天津市自然科学基金项目(08JCYBJC09200)资助课题
【CateGory Index】: TN249
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