Additive manufacturing (AM) has matured rapidly over the past decade and is recognized as one of the most promising techniques for producing parts with complex and functional geometries that are difficult to manufacture using conventional subtractive processes. Various materials, such as polymers, metals, ceramics, and graphite can be used to produce end products. Each AM method has distinct characteristics, such as the type and form of feedstock, the precision achievable, and the required post-processing. Most AM processes repeatedly melt and solidify material using a heat source to build three-dimensional parts. However, AM involves many interacting parameters, including heat sources and environmental factors. Although these are the main factors affecting product quality, their coupled effects make it difficult to fully understand the phenomena that occur during AM.

This special issue focuses on recent trends in AM to advance the chatter-free depth of AM technologies. Submissions should demonstrate a deep understanding of AM processes and their enhancement to improve the mechanical properties and dimensional accuracies of built parts. We are also welcome reports of successful industrial applications with optimized configurations, hybrid processes, material reuse, post processes, and material developments applied to AM techniques.