The thesis investigates the use of different approaches to solving problems related to geometric accuracy and waviness in additive manufacturing. It describes existing procedures and introduces a new possibility of using a guide wall for melt guidance in wire arc additive manufacturing (WAAM). Various materials suitable for constructing the guide wall are tested, ranging from commonly used ones intended for fire protection to more specific high-temperature-resistant ceramics designed for extreme applications. It was found that, in addition to issues with arc stability in electrically conductive materials, factors such as the distance between the guide walls, the affinity of the materials for mutual reactions at elevated temperatures, their ability to be reused multiple times, susceptibility to thermal shocks, and the smoothness of the guide wall also play an important role. Among the tested materials, some showed certain capabilities in melt guidance, but not to an extent sufficient to confirm the feasibility and applicability of the proposed method.
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