Sheet Metal Springback Measurement Based on Reverse Engineering Software

Sheet metal springback analysis is mainly dependent on experience and short of reasonable measuring methods.The combined method of photography and surface scanning measurement technology was adopted to obtain point cloud data of BC-48 refrigerator door shell.The 3D comparison method based on reverse engineering software Geomagic Qualify was presented to obtain 3D springback values of the key points.The results indicate with regard to the larger surface and two bend surfaces of refrigerator door shell,the influences of 3d space springback values are mainly from z direction,x direction is 0,and y direction is less.Especially for larger surface,springback value and direction along 3d space are completely consistent with z direction.But for two bend surfaces,springback value along 3d space is completely consistent with z direction,and springback direction is completely opposite.