The influence of the scan times on laser forming process were studied experimentally.The experimental results show that the relationship between the scan times and the bending angles is about in direct ratio.The thinner the sheet is,the larger the bending angle is for the same process parameters and the scan times.The ingredient of carbon will drop down due to the repeating irradiations of the laser beam if process parameters are controlled reasonably.The hardness of the irradiated surface of the sheet is reduced,and the grain will become larger.Thus,the properties of the heated zone become bad.The temperature of the heated zone must be controlled when the sheet is irradiated by the laser beam repeatedly in order to acquire good microstructure and properties.