Gravity die casting as an alternative route for the manufacture of tyre moulds

Abstract

Quality of a tvre is highly dependent on the tyre moulds that are being used to produce tyrcs. It has been found that in most of the situations. tyres are rejected due to defects and other problems arising from the existing poor quality moulds. The present tyre mould production process (dry sand casting method) has inherent drawbacks and difficulties in both casting and finishing processes. Dimensional accuracy and the geometry of moulds are hard to achieve. Moulds crack during use due to internal blowholes introduced In casting process and it is difficult to eliminate these defects in the present method.