Gravity Die Casting

A tool or die is designed and manufactured to the required shape of the component to be made. Molten metal is introduced into the die by under gravity. Once solidified the casting is removed from the die which can be used many times to produce identical parts with good surface finish.

The production of castings from a reusable mould or die having two or more parts each located in relation to other parts. The metal is poured in by hand or automated ladles and uses gravity to fill the die. The die contains an impression of the casting together with its running, feeding and venting systems. Provision is made for the removal of the casting by some means. The die can readily be cleared of debris such as hot metal splashes and sand so that the casting’s accuracy is maintained.

The process is capable of producing castings in cast iron, copper base alloys, aluminium alloys and other metals including zinc. It is used for medium to long runs of castings with weight ranges typically from ½ kg to 50kg. It can be automated to a certain extent on the closing and pouring side of the process.

Used in most markets and applications where light alloys are needed as most of the production is of aluminium parts.