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Instrument panel member
Prototypes for subsequent die casting parts are frequently made by Rapid Prototyping. For these prototypes, Rapid Prototyping investment casting techniques, which may provide the appropriate surface qualities, are preferred. However, these techniques are only conditionally applicable for components like a complete instrument panel.
In sand casting, prototypes may be implemented even in this dimension, both as one-of-a-kind and small series parts. One-of-a-kind parts are preferentially made in direct molding material milling as DMM®-parts of a mold, whereas small series are produced by means of simplified modeling equipment. Additional mold parting lines by local undercuts are avoided by representing them through Direct Croning® - cores. This way, the necessary modeling equipment may be simplified and total costs can be cut down.
In sand casting, thin-walled components may also be produced with the applied technology. Even wall thickness values of about 2 mm can be realized in steel alloys by a negative pressure supported casting technique. Procedures like this may be an efficient support for die casting prototypes. When using this method in combination with active mold cooling, a method also developed by the ACTech GmbH, characteristics very similar to those of the die casting parts can be achieved in the prototype.
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