Incremental forming process is one of the most promising newer techniques in metal forming process. Formability of analysis has to be carried out in order to obtain successful forming process. This paper aims to study the forming behavior of AA5052 aluminium alloy through incremental forming process. Truncated square pyramid and cone are formed to study the formability of AA5052 aluminium alloy at room temperature. A computer controlled numerical machine was used for forming. Forming limit diagram (FLD) is used to study the behavior of sheet metal. FLD and thickness distribution has been predicted and compared for both the shapes. The forming limit diagram obtained through incremental forming very much varies from conventional forming limit diagram. Comparison of FLD and thickness distribution shows that cone has higher forming limit than square cup and the thickness after forming is better in cone shapes than in square cups.
High toughness epoxy bio-composites were prepared using Caryota urens fiber and biochar particle for light weight and low cost engineering applications.The main aim of this research was to study the effect of adding biochar along with C. urens fiber in epoxy resin composite and its properties. The biochar used in this present study was prepared from coconut shell using pyrolysis process. The composites prepared with 5 vol% of biochar gives highest tensile strength and modulus of 172 MPa and 6.7 GPa. Similarly, the biochar of 7 vol% in epoxy resin reduced the wear volume to the greater extend. Moreover, a highest dielectric constant and loss factor of 6.2, 1.6, and a thermal conductivity of 0.33 W/mK with high hydrophobic contact angle of 70 was observed for composite made using 7 vol% of biochar. These improved dielectric, mechanical, barrier and tribological properties composite could be used as microwave shielding material in electronic gadgets, signal processing units and other telecommunication devices as shielding material with good mechanical properties required.
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