Die casting

In gravity die casting (also with the use of sand cores) we cast aluminium alloys according to DIN EN 1706 with unit weights of up to 45kg.

We are happy to advise you on the casting development with regard to the selection of alloys as well as the most effective design of die casting tools.

Whether at our own location or at the site of one of our long-term partners, we work on your component and deliver it to you ready for installation. If required we will also test the part for pressure tightness.

Die casting

In die casting, liquid metal is poured into metal permanent moulds under the effect of gravity. For optimum mould filling, a gating and feeding system is required on the mould or the part which is to be casted. A low turbulence mould filling avoids the risk of oxide illuviation and hydrogen uptake. The aim is to produce pressure-tight and dimensionally accurate castings.

The depiction of undercuts on the casting is achieved with sand cores, but also with metal cores. The possibility of shrinkage associated with the use of metallic cores is counteracted by the use of separating coatings and by the conical design of the cores.

After the mould filling, all areas of the casting must cool evenly so that the formation of voids or sink marks is prevented.