Thin-walled Mg Structural Parts by a Low-pressure Sand Casting Process

Summary

The development of a new device for low-pressure sand casting process is presented. It allows for producing thin-walled parts in small and medium size series, which demand high process quality, especially for the aerospace industry and other particular applications.

The low-pressure technique gives rise to an excellent process control in comparison with gravity pouring. In particular, this is important for mould filling and control of the protection gas. This technique used for sand casting can introduce all advantages of Mg alloys and their properties into the production of small and medium size series.

Furthermore, the development costs can be reduced by this technique. This is particularly important for special and expensive alloys (e.g. Mg-Zr-RE-Y).