Aluminum sand casting

Sand casting - one of the oldest casting techniques

This procedure is being used for production of single pieces, prototypes and small series. The required molds are relatively low-priced, being quickly produced and, if necessary, also modified.

Sand casting offers a wide construction variety. Desires of versatile shapes, complicated geometrics and recesses in a technical pretentious fine-casting quality come true.

Sand casting process requires clay-bound, i.e. synthetic resin-bound casting sands. The molds and models can be used only once.

Casting technique

Before starting with the essential casting procedure, the sand mold, consisting of two boxes, has to be prepared and afterwards to be filled with liquid aluminum.

The acceleration process takes a little more time compared to such in permanent mold casting, since there is no humidity in the material and it shows only poor heat conductivity. Casting procedure works with force of gravity or low pressure.
The whole operation ends up by destroying the molding box and cleaning the casting piece.