A tool for computer-aided orientation selection in additive manufacturin processes

The paper presents a method for the optimal selection of build orientation for parts fabricated by additive processes. It is based on widely accepted selection criteria such as build speed, process cost and surface quality, which are evalutated through empirical models and balanced according to the need of each different application. Compared to existing methods, it tries to improve the treatment of surface quality for complex shaped parts. For this purpose, it takes into accunt additional criteria such as the integrity of fine form details and the distribution of estimated defects over specific regions of interest on part surface. A two-step selection procedure combines a generation of near-optimal orientations with a visual evaluation of canddate solutions. The method has been implemented in an interactive software tool and tested on some example cases.