Laminated Forming of TC4 Titanium Alloy by High Frequency Induction Brazing

In order to explore a new rapid prototyping technique using TC4 alloying sheet as molding material, the laminated forming samples were prepared with self-made Ti-based rapidly solidified brazing ribbons by high frequency induction brazing technology. The tensile strength and interfacial microstructure of the brazed joints were analyzed. The results show that the tensile strength of the amorphous forming sample is higher than that of TC4, while the crystalline one is lower than TC4. Both of the brazed joints consist of (Ti,Zr)₂(Cu,Ni)+(Ti,Zr)ss eutectic and Zr-rich solid solution of α-Ti. The tensile fracture indicates that the fracture in the joints is brittle with herringbone.