X. Sun, Peking University, Beijing, China
In 2004, I invented a new internal high pressure technology and a series processes for high strength and thick wall tube, sheet, and vessel metal forming during the thermal simulation experiments of hydrocarbon generated from coal, and I applied more than 20 kinds of invention patents in China in September 2005. This technology and process are different from other current internal high pressure metal forming processes (hydroforming, gas forming, and explosive forming), such as the principle of forming pressure generating is different and the forming equipments are different etc. Moreover, this process has many advantages compared with current internal high pressure metal forming process, for example the forming pressure can be provided from 0 Mpa to 3000 Mpa (3.0GPa) quickly and easily by this technology, this process can manufacture thick wall and high strength metals, this process can manufacture multilayer metal hollow bodies with different metals, and the forming equipments are simple and low cost etc. We have done many investigations for technology testing, forming methods and forming condition experiments in the past three years, the experimental results show that this process is very effective for thick wall titanium alloys narrow neck hollow body integral forming, therefore it has wider applications in aerospace and defense light weight, high strength, high temperature resistance, and low cost industry programs.
Summary: This is a new internal high pressure metal forming technology, processes and apparatus. The experimental results show that this process is very effective for thick wall titanium alloys narrow neck hollow body integral forming. Therefore, it has wider applications in aerospace, defense, and automotive light weight, high strength, high temperature resistance, and low cost industry programs.
