Análise tribológica em ferramentas de aço AISI H13 após ciclo de solda por fricção em liga de alumínio

Abstract

This work explores how tribology can be applied to improve the performance of AISI H13 steel tools in the friction stir welding (FSW) process on aluminum alloys, particularly analyzing the impact of different heat treatments on wear and mechanical resistance. Tribology, which studies friction, wear, and lubrication, is essential for reducing costs, increasing efficiency, and extending the lifespan of industrial components. AISI H13 steel, known for its resistance to deformation at high temperatures and its toughness, underwent quenching, single tempering, and double tempering, with results showing that the latter offers greater durability, significantly reducing wear due to the relief of internal stresses in the material. Microhardness tests confirmed higher resistance in heat-treated tools, while statistical analyses validated the efficacy of the treatments. This study highlights the importance of understanding tribological mechanisms to optimize industrial processes, reduce waste, and ensure greater reliability and efficiency in critical applications, contributing to sustainable advancements in mechanical engineering. The results show that samples with double tempering achieved a mass reduction of 0.002 grams, with better performance compared to single tempering, which lost 0.007 grams, and quenching treatment, which reached 0.264 grams of mass loss due to wear during the tests.