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In order to solve the disadvantages of complex and difficult processes, extremely low production rates, and high costs in the near net forming precision casting process of titanium and titanium aluminum, the enterprise has invented a new casting forming method, especially suitable for titanium alloys and titanium aluminum alloys, after nearly ten years of research - bottom leakage vacuum suction casting forming method.

Principle: Titanium and titanium aluminum based alloys are melted in a water-cooled copper crucible, which also has a bottom leakage suction casting function. After melting, the titanium alloy is pressed into the mold by gas pressure to form a casting. Advantages: This method is particularly suitable for preparing thin-walled castings of titanium alloys and titanium aluminum alloys, which have high activity, high melting point, and poor casting performance. It has the following advantages:

1. Near net forming, significantly improving material utilization rate; 2. Especially suitable for casting complex parts, thin-walled parts and other castings that are difficult to produce by other methods. It can form small thin-walled titanium alloy parts with a wall thickness of 0.5mm, which are difficult to cast by other methods; 3. Significantly reducing the interface reaction between castings and molds, minimizing shrinkage and porosity defects within castings, refining grains, and reducing segregation can improve the performance of castings

2. The melting and casting processes are simple, efficient, and the production methods are flexible. The average production cost is more than 50% lower than that of investment casting and centrifugal casting. The enterprise has mastered the core processing and forming technology of advanced titanium alloys and other high melting point, high activity rare metal materials that are difficult to process in the field of new materials, and is at the leading level in China. The cost of products using this technology is much lower than the current conventional casting methods, with an average reduction of more than 50%.