Laser Power Effect on Mechanical Properties of AL-7075 With/Without Additive Nano Silica Carbide

Abstract

The purpose of the study was to experimentally analyze the impact of a laser beam on the mechanical properties, such as tensile strength and wear, of aluminum alloy 7075 and aluminum alloy 7075 reinforced with 1% nano-silicon carbide. The study aimed to examine the effect of different laser powers (50 watts, 75 watts, and 100 watts) on the mechanical properties of aluminum samples. According to this study, found that adding 1% nano silicon carbide can significantly reduce the specific wear rate in a range of distances. Specifically, the wear rate was reduced by 86.53% between 600-1200 m and 51.74% between 1200-1800 m. In addition, the specific wear rate of pure AL-7075 also decreased by 64.28% between 600-1200 m and by 67.07% between 1200-1800 m. These findings showcase the potential of nano silica carbide as a viable solution for reducing wear rates in various applications. According to the results, increasing the laser power from 50 to 75 watts resulted in a decrease of the specific wear rate by 24.24% for the 600-900 m range and by 8.25% for the 1200-1800 m range. At 75 watts, the specific wear rate was reduced by 9.25% for the 600-900 m range, and it remained constant for the 1200-1800 m range. This study provides valuable insights for industries that utilize aluminum alloy 7075 in their products, such as aerospace, automotive, and construction sectors. By exposing the alloy to different laser powers, these industries can increase the tensile strength and, in turn, improve the overall performance of their products. The inclusion of nano silicon carbide is an added advantage that can further enhance the tensile strength properties of the alloy. Overall, the results of this study can lead to more efficient and effective use of aluminum alloy 7075 in various applications. Further research can be conducted to explore other potential benefits of utilizing different laser powers and nano-silica carbide in the alloy. A study found that exposing pure aluminum alloy 7075 to different laser powers can increase tensile strength. At 50 watts, it increased by 6 %, at 75 watts by 11.11%, and at 100 watts by 14.11%. Adding 1% of nano silicon carbide to the alloy increased tensile strength even more, with the alloy experiencing a 30.4 % increase at 50 watts, 42.6 % at 75 watts, and 52.2% at 100 watts.