Effect of mould tilt angles on the mechanical properties of as-cast al-si alloy

摘要

A near shape casting technique to produce as-cast aluminium-silicon alloy metal bars has been designed and fabricated. In this tec1mique molten aluminium alloy was poured from a moving tundish into a D-Shape groove of a tilted copper mould. The base of the mould was cooled by water spray. The copper mould was tilted at 1°, 2° and 3°. The as-cast aluminium alloy bars were tested in accordance to ASTM standards to determine their mechanical properties namely hardness and tensile strength. The results show that decreasing mould tilt angle will increase the mechanical properties of the as-cast aluminium-silicon alloys bars.