Analisis Uji Impak Alumunium 6061 Setelah Proses Perlakuan Panas (Heat Treatment) dan Pendinginan Cepat (Quenching) Sebagai Tameng Huru-Hara

Abstract

This research aims to analyze the impact strength of Aluminium 6061 as an alternative material for Riot Shields compared to polycarbonate, which is commonly used today. The main focus of this study is to determine the effect of heat treatment and rapid cooling (quenching) on the improvement of Aluminium 6061’s impact resistance. The testing method used was the Charpy impact test according to ASTM E23 standards, designed to measure the absorbed energy and impact value of each test specimen. The results showed that Aluminium 6061 with heat treatment and quenching achieved an impact energy of 25.46 Joules and an average impact value of 0.3075 J/mm², while polycarbonate exhibited only 5.09 Joules of impact energy and 0.1184 J/mm² of impact value. This indicates that Aluminium 6061 has a significantly higher impact resistance compared to polycarbonate. Therefore, Aluminium 6061 has strong potential to be used as an alternative riot shield material that provides greater strength and durability, although it weighs almost twice as much as polycarbonate shields. This study is expected to provide new insights into the use of lightweight high-performance metals in the development of personal protection equipment for the Indonesian Air Force (TNI AU), particularly for riot shield applications.