Abstract

Recently, considerable attention has been paid for the many kinds of flexible production processes. Most concerned one is the incremental sheet metal forming (ISMF) process, which does not require any high capacity press machine and a set of dies with specified shape for the product. ISMF process apparatus requires a traveling tool with simple shape and a holder which holds the sheet stationary at its periphery. In this research, spring‐back and its effect on dimensional precision of ISMF process has been studied. The influence of process parameters such as: vertical step size (ν), sheet thickness (t), tool diameter (d), feed rate (f) and spindle speed (n) have been investigated. A series of experimental tests have been implemented for a straight groove bead‐shape part made of aluminum sheets (Al 1050‐O). In first section, a reliable statistical analysis has been carried out to extract the importance of each parameter. The obtained model permits to select appropriate process parameters to reduce spring‐back effectively. In second section, simulation process has been implemented by FEM software. In final, experimental results confirm the results of simulation and comparisons between experimental and simulation results of spring‐back have shown good agreement.

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