圆锥轧辊激光毛化加工研究

在圆锥轧辊轧制带钢时,为了增强轧辊与带钢之间的摩擦力,采用对轧辊表面进行激光毛化的方法,对圆锥轧辊的激光毛化加工过程进行了分析研究,给出加工系统的硬件组成,介绍了加工系统的控制原理。由于在圆锥轧辊表面进行激光毛化属于变径加工,为了保证每个加工圆周处毛化点之间的点距不变,推导出每个加工圆周处圆周直径、总脉冲个数和分频系数等的计算公式,同时给出相应算法,解决了每个加工圆周处最后1个毛化点与第1个毛化点之间间距总是大于点距的问题。结果表明,在圆锥轧辊表面进行激光毛化,不仅增强了轧辊与带钢之间的摩擦力,同时还延长了轧辊的使用寿命。

Study on laser texturing on cone roller surface

When the strip steel is rolled by the cone rollers, in order to strengthen the friction force between the cone roller surface and the strip steel, the laser texturing(LT) technology on the cone roller surface is adopted. The LT technology on cone roller surface was introduced. The composition of the LT equipment was presented. The control principle of the LT equipment was given. Because the processing process of LT on the cone roller surface is a process of changing diameter, in order to gain the same distance between two adjoining LT dots on the same processed circle, the computational formulas of the diameter, the number of LT dots and the frequency division coefficient on every processed circle must be worked out. The formulas were provided which can solve the problem that the distance between the last LT dot and the first LT dot is larger than the usual. The practical application shows that the LT on cone roller surface enhances the friction force between the cone roller surface and the strip steel and extends the life of the cone roller.