Aluminum is the most abundant metal and the third most abundant element in the earth's crust, after oxygen and silicon. It represents approximately 8% of the weight of the Earth's solid surface. Aluminum is also chemically reactive and occurs naturally as a free metal (Kobayashi et al, 2002). There are many applications of aluminum in our daily lives, such as construction machinery, aircraft manufacturing, shipbuilding, furniture and electronic components. For the automotive industry, aluminum has acquired a global position due to its advantages over other competing materials, such as lightness, offering exceptional unit strengths (strength/density ratio), high corrosion resistance, low maintenance costs, good temperature resistance (even in arctic environments), ductile, easily assembled by all commercial processes such as welding, soldering or brazing, finally, aluminum can be easily shaped by all common processes including extrusion (a major advantage) and can be recycled. advantages, aluminum has certain disadvantages. Firstly, aluminums are relatively ex...