Numerical simulation on laser bending of steel tubes

In order to explore process of laser bending steel tubes the temperature field and stress strain field are analysed with method of numerical simulation.Dynamic process of laser bending the steel tube is researched.The rule of elastic and plastic distortion at top,middle and bottom in tube thickness direction is analyzed.The results show that the compress plastic distortion is produced along tube thickness direction at section of laser scanning and compress plastic distortion of the bottom is greater than that of the top under giving technical parameter.The!effect of the laser parameter on the bending angle is researched.The bending angle can be increased along with increasing the laser power or scanning angle.