MULTI-BEAM LASER HEATING OF STEEL: TEMPERATURE AND THERMAL STRESS ANALYSIS

MULTI-BEAM LASER HEATING OF STEEL: TEMPERATURE AND THERMAL STRESS ANALYSIS
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钢的多光束激光加热:温度和热应力分析

DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
B. Yilbas
B. Yilbas
中科院分区:
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文献类型:
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作者:
S. Z. Shuja;B. Yilbas

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研究了多束激光对钢板表面的加热。照射的激光光斑沿着弧定位,以在以恒定速度进行激光扫描期间增加加热的表面面积。温度场和应力场的预测不同数量的点沿着弧。研究发现,通过适当选择沿弧沿着的辐照点数目,可以控制辐照基片的温度场和应力场。照射点的数量增加的结果在电弧周围的几乎均匀的高温和高应力场的发展,但是,局部加热和不连续的应力场引起的冯米塞斯应力发生的电弧中的点的数量减少的大的差异。
Laser multi-beam heating of steel sheet surface is considered. The irradiated laser spots are located along an arc to increase heated surface area during laser scanning at a constant speed. Temperature and stress fields are predicted for various number of spots along the arc. It is found that temperature and stress fields in the irradiated substrate can be controlled through proper selection of the number of irradiated spots along the arc. Increasing number of irradiated spots results in development of almost uniform high temperature and high stress fields around the arc; however, local heating and discontinuous stress field giving rise to large differences in von Mises stress occurring for reduced number of spots in the arc.
DOI: 10.4028/www.scientific.net/kem.473.919
发表时间: 2011
期刊: Key Engineering Materials
影响因子: --
作者:
Taleb-Araghi B;Göttmann A;Bergweiler G;Saeed-Akbari A;Bültmann J;Zettler J;Bambach M;Hirt G
通讯作者: Hirt G