Although the capability of AM for the generation of components of a high geometrical complexity has been widely demonstrated, the final surface and structural quality of these components is, in many cases, far from the specifications required by their service conditions. This is mostly due to temporal process fluctuations, possible spatial heterogeneities and modified grain formation kinetics leading to critical variations at the microstructural level through unpredicted thermal, mechanical and chemical signatures deviations. This lack of practical predictability, that is unusual in traditional substractive manufacture, is one of the present-day main limitations of AM processes face to the crucial point of components qualification for high reliability applications.
Although the capability of AM for the generation of components of a high geometrical complexity has been widely demonstrated, the final surface and structural quality of these components is, in many cases, far from the specifications required by their service conditions. This is mostly due to temporal process fluctuations, possible spatial heterogeneities and modified grain formation kinetics leading to critical variations at the microstructural level through unpredicted thermal, mechanical and chemical signatures deviations. This lack of practical predictability, that is unusual in traditional substractive manufacture, is one of the present-day main limitations of AM processes face to the crucial point of components qualification for high reliability applications. Read More
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