The sand casting
Our casting techniques
Cost-effective casting technology: sand casting
Sand casting belongs to the casting processes with so-called "lost molds". The mold is destroyed when the finished workpiece is removed and can therefore only be used for a single casting. The alloy is cast in hand- or machine-made molds made of quartz sand - hence the name "sand casting". This casting technique allows high-quality and detailed castings to be made without the use of expensive metal molds. In addition, sand casting allows a rapid response to changes in the mold.
Sand casting with attention to detail
Sand casting is particularly suitable for small to medium series, for prototype development and production of parts with complex geometries. To produce the mold, product-specific models are first made from metal or wood. The basis for this is formed by digital 3D designs or 2D sketches, which are then reproduced to scale. The finished model is then pressed in sand as the molding material. Due to its special composition, the sand retains its shape even after the model has been removed and can now be used as a casting mold. Cavities and challenging geometries are recessed during casting with the help of so-called cores, which are placed in the molds before casting begins.
The alloy matched to the product to be cast is then placed in the mold.
Once the metal has cooled, the cast workpiece is removed. In the process, the sand mold is destroyed. Subsequently, finishing operations such as deburring the surface or removing sprue pieces are carried out. An individual finish is also possible. Compared with permanent mold casting, castings made by sand casting have a rougher surface. However, geometries are reproduced in detail.
Advantages of the sand casting process
- Hardly any geometry restrictions
- No restriction in terms of the weight of the casting
- Great freedom to influence feeding and guided solidification
- favorable casting technology
- quick reaction to changes in the mold possible
Sand casting at miguss: Everything from a single source
We will be happy to discuss with you whether sand casting is the right casting process for your project. We are there for you at every step in the process and will support you with competence and experience from the making of the pattern mold to the final touches on the casting. We look forward to hearing from you!