Aluminum Alloy 6063 is used widely in extrusion industry for
building and automobile applications. Aluminum billet is
manufactured usually by vertical continuous casting technique and direct water cooling. 5 different casting temperatures 660, 680,
700, 720, 740Cº, besides 5 different casting speeds 100, 112, 125, 138, 150 mm/min to control cool water feeding are chosen. It has noticed that the increase of casting temperature and decreasing of casting speed has a good effect on improving billet quality which contribute later on improving the hardness and mechanical properties of extruded aluminum profiles.
