Gravity Die Casting

During gravity die casting, the fluid metal is casted into a permement mold with the help of the power of gravity. To optmimise mold filling, a custom-made riser-and ingate system needs to be established that caters to the unique requirements of the part being casted.
Due to smooth formfilling, danger of oxide-and hydrogen absorbtion is minimized. The aim of this method is to produce pressure-tight and accurate to measurements castings.

Displaying undercuts at the casting is achieved with the help of sandcores or metallic cores. To counter risk of shrink coating when using metallic cores, parting compound and conic designed cores are used.
After filling, all areas of the casting need to cool-off evenly to avoid cavities or shrink marks.