Metallurgical Characterization of Co-Cr-Mo Parts Processed by a Hybrid Manufacturing Technology.

The additive manufacturing technology offers new and incredible opportunities in the design of components. Nowadays, structural integrity assessment of additively manufactured components is a formida- ble challenge that needs to be faced out in order to allow such components to be launched in the market. One of the major drawbacks of additive manufacturing is poor surface finish and loose geometrical tolerance of built parts. In this scenario, hybrid manufacturing, which takes advantage of both subtractive and additive manufacturing, can be considered as a solution worthy of investigation in view of possible applications to save costs and time in the component production. The present work is aimed at assessing microstructural pro- perties of Co-Cr-Mo specimens manufactured by the hybrid subtractive/additive technology, when the addi- tive part is built over the machined one. The results show an excellent metallurgical coupling at the interface between the two differently processed parts.