M.A. Hybrid Manufacturing Process and Hot Forging: Preform Manufacturing Through Localized Melting Material Deposition Using UTP AF DUR 600 Wire

Objective: To analyze the efficiency of a hybrid manufacturing process that combines arc and wire additive manufacturing (WAAM) with hot forging, using the UTP DUR 600 consumable, evaluating its effects in the microstructure and mechanical properties of pen type hammers. Theoretical Structure: Additive manufacturing (AM) allows for the rapid and precise creation of complex projects, making the WAAM technique a promising alternative for its ability to deposit large volumes of material. However, its lower surface precision can be compensated by subsequent processes, such as hot forging — a technique consolidated in the industry for improving the mechanical properties of two metals by means of plastic deformation at high temperatures. Method: Metal pieces are manufactured by WAAM with the UTP DUR 600 electrode arame, deposited layer by layer, and subsequently submeted into the forging by quente. Avaliaram-se alterações microestruturais, including the recrystallization dynamic, or refinement of grains, or alignment of the fibers of the material and the distribution of phases. The effects of temperature and deformation rates are also considered. The resistance to abrasive wear was validated with a non-flat base of the deposit path. Results and Discussion: The forging caused dynamic recrystallization and significant alterations in the microstructure of the UTP DUR 600 liga, including the refinement of grains and the realinhamento of the fibers of the material. These changes contribute to the increase in mechanical resistance and tenacity of parts. Abrasive wear resistance also presents advantages, associated with the planing of the deposition process and the forging conditions. Research Implications: The study demonstrates that the combination of WAAM with quente forging can overcome surface precision limitations of additive manufacturing, offering parts with better mechanical properties. A detailed analysis of the process variables contributes to the optimization of industrial parameters in applications that demand high wear resistance. Originality/Value: The research presents an innovative approach to integrating additive manufacturing by arame arc with hot forging, investigating its microstructural and mechanical effects in a high hardness league. This combination is still little explored in the literature, especially in the manufacturing of fine components, offering significant advances in the performance and durability of two components.