Foto del docente

Giampaolo Campana

Associate Professor

Department of Industrial Engineering

Academic discipline: ING-IND/16 Manufacturing Technology and Systems

Research

Keywords: hybrid LASER-GMA Welding Laser technology laser heat treatment metal foam Foundry technology

Research topics are: LASER and GMAW technologies (cutting, welding, hybrid welding, welding of dissimilar and innovative materials, heat treatment, surface modification), foundry technologies (manufacturing tools optimization: design of filling and feeding system by CAE instruments) and materials characterization.
Since 2006, joining methods and innovative applications for hybrid metallic materials with a foamed core (Aluminum foam filled stainless steel tubes and Aluminum Foamed Sandwiches) have been investigated.

Research methods are based on both esperimental activities and on modelling and simulation of the processes.


Themes
Process modelling and experimental activity on laser cutting, welding, hybrid welding, laser heat treatment, laser surface modification. The final aim of the modelisation activity was the prediction of the processes feasibility area and their optimisation.
Laser cutting modelling by means of analytical mathematics allowed the prediction of the feasibility area for the process. The metal expulsion was modelled: the calculated velocity of ejection from the bottom part of the kerf and the thickness of the molten material inside the kerf was found in relationship with the quality of the process.
Laser heat treatment was modelled by means of the FDM and allowed the prediction of the microstructures evolution and final performances.
Hybrid laser-GMAW technologies was investigated by means of experimental activities. Main result was the evaluation of the effect on welds shape and soundness due to the assistant gases composition.
Metal foam: innovative joining techniques for innovative application.

Project

Project Leader of the in progress Project about polymer laser welding financed by SACMI S.p.A. (about 150kEuros).

Project Leader (Local Research Unit) of the two-years long PRIN INTEMA (2008) Project financed by the Italian Ministry of the Research and University (about 70kEuros).

Project Project Leader (Local Research Unit) of the two-years long PRIN TILAS (2006) Project financed by the Italian Ministry of the Research and University (about 70kEuros).