Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2017 - September 06, 2017
Recently, the demand for aluminum alloy made of a wide variety of materials is increasing, especially its small lot production. Although Properzi continuous casting and rolling process is a widely used and highly efficient process to produce aluminum alloy rods, it is suitable for mass production. In this study, we tried a new process to produce a convex as-cast rod, using a single roll caster, which is usually used for producing thin strips. We developed a groove-type casting wheel. The effect of the flow speed of molten aluminum alloy and angle against the casting wheel when the molten was poured into caster on cross section of as-cast rod were investigated. With a trapezoidal shape of groove, solidification shrinkage occurred to the free solidified surface of as-cast rod. However, with a triangular shape of groove, the convex as-cast rod was produced when the pouring angle and the flow speed of molten aluminum alloy were within the appropriate range. Especially at the pouring angle of 40°, while the molten didn't fill the groove and the crystal gain size was larger than that at the pouring angle of 80°, the shape of the as-cast rod became closer to be circular and more appropriate in consideration of the rolling process.
