When it comes to tooling production, shell moulding is different from greensand and airset casting (i.e. Airset casting, or no-bake casting, is a sand casting method that uses chemically bonded sand to create moulds.). When resin-coated sand is applied to it, mould tooling heated to 350-700 degrees F cannot be used for shell mould casting. It is not feasible to use wood, plastic, or aluminium, which are commonly used in other sand casting methods, for shell mould casting.
Omnidex uses various iron grades for its standard tooling, which are durable, heat-resistant, and machinable. With steel tooling, greater longevity can be achieved when the tools are used in greater quantities.
The tooling requires special alloys, which limit the production process. However, there are a number of technical approaches. The majority of our pattern plates are formed or rolled to rough dimensions before they are machined. In addition, ejector pins are made to order in diameter and length. In rare cases, we cast the tooling and machine it to size, which speeds up the onboarding process. Following completion of the pattern plate or core box, gating is bolted to the plate or box.
