Research of Precision Casting Titanium Shell with Complicated Cavity Structure

Four different shelling technologies for complicated cavity structure titanium casting were studied. The results showed that anticipated effects can be achieved by using the backing layer slurry to do shelling without splashing sands. This technology costs lower for fabrication and it is better for shell drying. Its flexure strength at room temperature can meet the requirements and it is easy for operation. With this technology, three castings which are named former seal device were successfully obtained.