The effect of different types of quenching methods on the burr zone characteristics on Ti-6Al-4V material

Abstract

Heat treatment is a process that aimed to increase the ductility, reduce internal strain, smoothen the crystallite, increase the tensile strength, improve the Carbon (C) atom components, and increase the hardness. This research aimed to find the heat treated results using carburizing and quenching in blanking tool with low-carbon steel in the form of hardness level growth using carbon charcoal media mixed with BaCo3 energizer in pack carburizing process at 900°C temperature for 120 minutes holding time. This is continued with quenching process using oil, saltwater, and water. The blanking tool was tested in blanking experiment with 2.5% clearance, 3000 mm min−1 cutting speed using Ti-6Al-4V sheet metal with 0.6 mm thickness. The result parameter from the experiment was the burr zone level measurement of the product. Heat treatment process increased Carbon (C) atom component in the blanking tool. The raw material had a 0.17% component, and the quench media of oil, saltwater, and water had 0.19%, 0.22%, and 0.3% carbon components respectively. The hardness value also increases using oil, salt water, and water as the quenching media, resulted in 283.7, 423.8, and 462.4 HV respectively. The burr zone level was also obtained using the quench media of oil, salt water, and water with the results of 0.218, 0.206, and 0.119 mm.