Compression tests of carbon steel ball mould for casting

Abstract

In this study, the carbon steel boll mould that has merit of the metal mould and the sand mould was produced. Steel balls were heated and joined to produce the steel ball mould. The compressive strength was measured for the strength of the mould. The compression specimen was manufactured after putting steel balls into the carbon vessel and heating to join. The compression specimen was 10 mm in diameter and about 10 mm in height. The influence of the diameter of the steel ball and temperature of heating on the strength of the steel ball mould was examined. The compressive strength decreased as the ball diameter became large. Steel balls were oxidised and joined by heating. Melted aluminium was cast into the carbon steel ball mould. The macrostructure of the solidified specimen was observed.