Guo Xunzhong

Explosive Cladding and Hot Pressing of Ti/Al/Ti Laminates

Abstract Ti/Al/Ti laminates were prepared by an explosive cladding method. Then hot pressing was employed to further process the laminates. The results indicate that both linear and wavy bonding interfaces coexist and element diffusion occurs in the interfacial zone between the titanium and aluminum layers after explosive cladding. After 25 h heat treatment and 2.5 h hot pressing, the aluminum layer is consumed completely. The reaction layer consists of Al3Ti and Ti2Al5 phase.

Simulation and Experimental Studies on Hydrodynamic Deep Drawing of 2198 Aluminum Lithium Alloy

Abstract The process of hydrodynamic deep drawing of Al2198 was investigated by finite element (FE) simulation and experimental works. The effects of die cavity pressure, blank holder gap and pre-bulging pressure on the forming process and the thickness distribution were evaluated. The results indicate that the pressure inside the liquid chamber and the blank holder gap or blank holder force are the main factors affecting hydrodynamic deep drawing process. In addition, appropriate pre-bulging pressure is beneficial to form good quality parts with a relatively uniform wall thickness.