Influence factors of interfacial bonding strength of cold rolled titanium/steel laminated composite plates

Titanium/steel laminated composite plates were prepared by cold rolling method. The effects of rolling reduction, rolling speed, surface roughness, state of raw material and rolling pass on the interfacial bonding strength of titanium/steel laminated composite plates were studied. The results show that the interfacial action force and action time of rolling force on the interface are the main parameters affecting the interfacial bonding strength of titanium/steel laminated composite plates. The rolling reduction, surface roughness and state of raw material affect the interfacial bonding strength of titanium/steel laminated composite plate through affecting the interfacial action force. The rolling speed affects the interfacial bonding strength of titanium/steel laminated composite plate through affecting the action time of rolling force on the interface. Whether the titanium/steel laminated composite plate can be cold roll bonded or not has nothing to do with the number of rolling passes, only when the rolling reduction of single pass exceeds the critical rolling reduction can the cold roll bonded be realized.