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Metal additive manufacturing (AM) has experienced an explosive growth in interest within the aerospace and space sectors, but the adoption in real application has lagged interest. Process qualification (or lack thereof) is the primary reason and to date in situ sensing has failed to make a substantial impact, despite obvious utility. The primary premise of this talk is that current sensing techniques used in industry lag significantly behind what is possible and already implemented in other industries, and proper focus and division of labor between academia and industry can remedy the situation. Through this discourse we will assess whether or not current sensors used in AM are sufficient, what roadblocks may exist for academia to assist in developing solutions for industry, and how the in situ sensing community should focus their efforts for maximum impact.
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