Low cost and high quality composite foams were successfully produced by using inexpensive materials and manufacturing method. 7075 Al alloy based composite foams were prepared by using recycled beverage aluminum cans and silica waste particles as reinforcements and thickening agent. The effects of processing parameters such as silica particles volume fraction as well as the foaming agent amount, temperature and time on the structures, relative densities and impact energy values of the produced composite foams were investigated. It was found that as the foaming agent and SiO2 content increased, the foam relative density increased, but, the relative density was reduced with increasing foaming temperature. The structures of the 7075 Al foams revealed some heterogeneities and imperfections. However, uniform cell distribution and size with almost regular equiaxed closed cells were observed in the macrostructures of the 7075 Al based composite foams. Impact energy absorption testes showed that the composite foam containing 10 vol % of SiO2 particles and 6 wt % of foaming agent exhibited the highest impact energy among all the composite foams produced in the current work.