Numerical and Experimental Analysis of Surface Residual Stress during Incremental Sheet Forming

Incremental forming is a flexible die less manufacturing process in which the required geometries are formed on the sheet by series of local plastic deformations using spherical ended tools. This process is suitable for low volume production. Residual stresses developed during deformation cause local and global spring back in the component, affecting its accuracy. Sheet thickness, component geometry and process parameters have marked influence on the residual stresses