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首页> 外文会议>International Congress on Applications of Lasers and Electro-Optics >THE EFFECT OF BEAM GEOMETRY ON DIODE LASER FORMING OF SHEET METALS
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THE EFFECT OF BEAM GEOMETRY ON DIODE LASER FORMING OF SHEET METALS

机译：光束几何对板坯二极管激光形成的影响

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Laser beam forming has emerged as a new and very promising technique to form sheet metal by thermal residual stresses. One of the advantages of laser beam forming compared to conventional flame bending is its ability to accurately control the size and geometry of the heat source. In the area of optics, many studies explain the methods and design approaches to produce a variety of beam shapes such as line, rectangular, star, D-shape, annular, cross, etc. The objectives of this work are to compare the orientation effect of the rectangular beam, and to compare circular and rectangular beam geometries, for laser bending of AISI 304 stainless steel sheets. To achieve this, a high power diode laser (HPDL) is used to obtain bending angle for sheets of various thicknesses. From the study of the orientation of the rectangular beam, it is found that a narrow beam orientation produces higher bending angle. This is due to higher temperatures generated because of longer beam-material interaction. Comparing the circular beam with the rectangular beam, for the same average beam intensity, the circular beam produces higher bending angle.
机译：激光束成形作为一种新的和非常有前途的技术，通过热残余应力形成金属板。激光束形成与传统火焰弯曲相比的优点是其精确控制热源的尺寸和几何形状的能力。在光学领域，许多研究解释了生产各种光束形状的方法和设计方法，如线，矩形，星形，D形，环形，交叉等。这项工作的目标是比较方向效应矩形梁，并比较圆形和矩形梁几何形状，用于AISI 304不锈钢板的激光弯曲。为此，高功率二极管激光器（HPDL）用于获得各种厚度片的弯曲角度。根据矩形光束的取向的研究，发现窄光束方向产生较高的弯曲角度。这是由于由于梁材料相互作用更长而产生的较高温度。将圆形光束与矩形光束进行比较，对于相同的平均光束强度，圆梁产生较高的弯曲角度。

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