Incremental sheet forming is a new technology allows to obtain complex parts using a hemispherical end tool by applying a locally deformation process in sheet metal. The desired geometry is provided by using a specific forming tool path controlled by a CNC machine. The main advantage of this process is the very low cost of tooling development compared to conventional processes as deep drawing.
A second asset of this process is due to the important plastic strain level that it can be obtained. The main objective of this work is to develop a numerical tool by applying a GURSON-type ductile damage model with the finite element calculation code ABAQUS/Explicit and validating these numerical predictions using the results of experimental tests. A copper alloy material is considering with a controlled grain size. The comparisons made on the force prediction during a single-point incremental forming (SPIF), operation of a pyramidal shape (truncated) [5], and the results obtained, revealed a good correlation between the numerical simulation and the experimental.