The development of titanium plate and titanium alloy plate

Titanium started to have industrial production in 1948, but due to the high chemical activity of titanium, so it can produce chemical reaction with a variety of substances, including all kinds of refractory material commonly used in the casting industry, which can make the casting be difficult, so the titanium plate and titanium alloy plate are used as the deformation structure at the beginning.

With the increase of the amount of deformation structure of titanium alloy, and the expansion of application scope, it is found that the amount of the mechanical processing of titanium alloy plate is large, but metal utilization is very low (only 20%-50%). Some parts, such as the frame structure of the camera castings adopt forging or other deformation process, which not only is very difficult, but also is very unreasonable. From 1960s, many countries have been actively studied titanium alloy  forming process, such as powder metallurgy, superplastic forming, forging and casting etc..

With the maturity and development of titanium alloy plate casting technology and the successful application of hot isostatic pressing in the titanium industry, the casting quality of titanium plate and titanium alloy plate has been close to or reached the level of deformation milling alloy parts. At the same time, due to the adoption of casting can provide designers with great design flexibility, titanium alloy plate castings are rapidly used in the aircraft fuselage and gas turbine engine. After the middle of 1980s, military aircraft used a lot of titanium alloy plate castings overseas, civil aircraft and engines also began to use titanium alloy plate castings, for example, the Boeing 757 aircraft made in the United States used titanium alloy plate castings about 45, the Boeing 767 used titanium alloy plate castings about 60.