Additive manufacturing process and product obtainable through the process

An additive manufacturing process for manufacturing a solid body (2) designed to be delimited by a predefined outer surface includes selecting at least one volume portion (6) of the solid body (2), preparing a three-dimensional model of the solid body (2) by means of a computer, in which the selected volume portion (6) is modelled independently of the rest of the solid body (2), supplying the model in a suitable data interface format to the processing unit of an additive manufacturing machine, and operating the additive manufacturing machine for producing the solid body (2) according to the model, thus obtaining the predefined outer surface.