The　analytical　springback　prediction　model　of　tailor　welded　blanks　(TWBs)　for　air　bending　process　is　put　forward　under　a　series　of　assumptions　such　as　the　plane　section　and　plane　bending,　the　asymmetry　of　the　cross-section　of　TWBs　is　taken　into　account　in　the　prediction　model.　The　location　of　stress　neutral　layer　of　TWBs　is　determined　using　the　exponential　hardening　law.　The　angle　after　springback　for　TWBs　is　calculated　by　incorporating　the　interaction　moment　between　two　parent　planes　on　the　phase　of　unloading.　The　nonlinear　implicit　relationship　between　punch　displacement　and　the　unloaded　or　loaded　angle　is　solved　by　incremental　numerical　method,　the　code　is　compiled　using　Fortran　language.　TWBs＇　air　bending　experiment　is　performed　using　improved　tensile　test　machine　for　the　two　thickness　ratios＇　TWBs　(0.8/1　and　2.5/2),　the　results　of　experiment　and　analytical　prediction　model　for　the　two　thickness　ratios＇　TWBs　are　agreed　well　with　each　other,　it　is　the　foundation　of　the　theory　and　experiment　for　TWBs＇　air　bending　process　real-time　control　technology.　©　2012　Journal　of　Mechanical　Engineering.