A Study on Additive Manufacturing Processes, Standards and Mechanical Properties
Mehmet Şükrü Adin
Abstract
Additive Manufacturing systems are advancing daily, thanks to the ever increasing pace of technological advancement. However, because of the building nature of AM technologies, many defects occur in manufactured parts. Hence, it is crucial to investigate the optimum processing parameters and optimum mechanical properties of the products to be built with AM technologies. In the literature, there are many studies on optimization of machining parameters of parts built with different AM technologies. However, these studies are not a continuation of each other, they are independent from each other and there are quite large differences between the parameters. As a natural consequence of this situation, it becomes challenging to make comprehensive evaluations. At the same time, it is also crucial to conduct mechanical tests to determine whether objects made using AM technologies are appropriate for their intended purpose. Therefore, in this study, important information is given about the usage areas of different standards in AM. Further, attention has been paid to the hardness, tensile, compression, surface roughness, fracture toughness and fatigue strength properties of AM materials. In this regard, the outcomes of research using materials including Ti-6Al-4V, SS316L, IN718 and Al-12Si were compared in terms of various mechanical properties. Furthermore, within the scope of the study, the most used AM methods and their differences are mentioned.