In this work a Reverse Engineering based approach has been implemented
aiming to reconstruct the 3D shape of a strongly damaged and no longer
usable impeller of a submersible centrifugal pump. After obtaining the 3D model,
new designs of the impeller were investigated in terms of structural stability and
corrosion resistance by changing the geometry and the material. Obtained results
show the used approach can be very useful both to reproduce, by Additive Manufacturing,
no longer available spare parts, so allowing to extend the useful life of
old machineries and to reduce costs resulting from plant shutdowns, but also to
improve the performances of old designs, making use of different materials and
new manufacturing processes