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In this modern era, the natural fibers usage in automobile and construction sectors has been increased. The goal of the current work was to investigate the fiber orientation effect on dynamic mechanical properties of hybrid Pineapple Leaf Fibre (PALF) hybridized with basalt reinforced epoxy composite at changing vibration frequencies. Hand Lay-up technique was used to manufacture the composites by keeping the unidirectional basalt fabric as an outer layer by keeping PALF as inner layer followed by static compression method. Tensile and flexural moduli were also determined apart from storage modulus (E′) and damping factor (tan δ) for different PALF fiber angles. The results exemplified that not only the storage modulus and loss factor but also glass transition temperature (Tg) as well found to increase with frequency and also the fiber orientation angle has a greater impact on dynamic and static properties.

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Wire electric discharge machining is an efficient technique among the available nonconventional machining process and is mostly used for machining complex shapes and hard materials. This process also acts as a form of surface modification technique. The discharge energy of machining process influences the nature of the machined surface to a very high degree due to high heat generation and deposition of wire electrode material. 316L stainless steel is widely used in engineering, marine and medical applications. Although 316L SS is a corrosion resistant material, there is a lot of research going on to improve its corrosion resistance by different surface modification techniques due to its applications. Investigation on the effect of WEDM parameters on the corrosion behavior of 316L SS material is carried out. Corrosion studies were carried out by Potentiodynamic polarization test and phase analysis was carried out by using XRD. Significant enhancement in the corrosion resistance of WEDMed surface is observed with the variation in pulse on time and peak current. Pulse on time and peak current are the significant parameters influencing the amount of discharge energy. Low level of discharge energy enhanced the corrosion resistance of WEDMed surface.

This study presents the wear behavior of 316L stainless steel material machined with wire electric discharge machine (EDM) at different machining conditions by varying the machining parameters pulse on time (T ON), peak current (IP), servo voltage (SV) and wire tension (WT). Sliding wear tests are conducted on the cylindrical specimens using pin on disc apparatus and the worn morphology of the specimens are analyzed by SEM and XRD. The experimental investigation revealed that the wear resistance is highly influenced by the wire EDM parameters. T ON and IP are identified to be the most influencing factors effecting wear resistance. At similar values of the product of T ON and IP, the wear resistance remained constant and the wear resistance increased with decrease in the product of T ON and IP. The obtained parameters setting can be used in die making industries where wear behavior is of importance.

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