Abstract: A process for producing a metallic structure by additive manufacturing comprises: providing a deposition-receptive substrate comprising a profiled surface, the profiled surface comprising a plurality of recessed and/or protruding surface features having elongated non-vertical walls and a depth of at least 0.

Abstract: A process and apparatus of producing a product having a wrought structure. The process comprises the step of: applying heat and a compressive load simultaneously to an application area of a cold spray deposition preform to transform the comprising consolidated particle structure into a wrought structure, the compressive load being applied laterally to the application area. The application of compressive load and heat to the application area raises the temperature of the material of the preform in the application area to between the recrystallisation temperature and the melting point of the material.