AbstractMethods for diffusion bonding of Al–Li alloys in the solid state and via a transient liquid phase are described and the factors that affect bond quality are discussed. Bond shear strength values at room temperature and peel strength values at room temperature and at superplastic forming temperatures are compared. The possibility of combining diffusion bonding with superplastic forming to manufacture multiple sheet structures is considered. It is concluded that under the most favourable processing conditions and on a small scale, combined diffusion bonding and superplastic forming of Al–Li 8090 alloy is now possible. Future developments will involve the optimisation of the process for cost effective commercial applications.MST/1608