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Formula vehicles (FSAE) is confronting to increase vehicle performance by reducing the weight of the various components. In consideration of weight, knuckle is one of the serious things to look over it. Steering knuckle is a nonstandard or non-catalog component hooks up with the constraint wishbones, suspension, brake disc and wheel hub. It undergoes alternating loads subjected to different conditions. In this study we aim in reduction of weight in the knuckle with concession in the yield strength. Design a two different type of compact knuckle by using the solidworks software. The compact knuckle also provides desired direction to the vehicle and also reduces the unsprung mass. To make a compact knuckle enrich a rib in less stress areas. The difference in two knuckles is that the length of model 2 knuckle is more. If the length of the knuckle increases the stress acting on upper arm will be less when compared to the model 1.

This limited research was extended to study the modification surface amendment of materials through Friction Stir Process (FSP) with nanoparticle addition followed by the post-processing method. In this paper, strengthened core and surface properties of AA8011 has been enhanced by adding nanoparticles such as Nitinol shape memory alloy (NiTi-SMAs) and silicon nitrate (Si3N4) through FSP followed by two different way of post-processing techniques like case hardening, case harden with shot peening. During FSP the use of NiTi-SMAs and Si3N4 as reinforcement interlocked the grains in hybrid nano composites of the processed zone. Also besides, post-processing promises a performance enhancement of core and surface hardness, ultimate tensile strength, impact strength and homogeneous distribution which was observed through scanning electron microscopic observations.

Over the past few decades, the world is looking for a better replacement option for metals. Polymers with reinforcements are finding their way deep inside in most of the engineering applications because of its lightweight and superior properties. The aim of this study is to investigate hybrid polymer composite polyphthalamide (PPA) reinforced with glass fiber and Poly tetra fluro ethylene. The reinforcement was varied as 10, 20, 30wt. % of Glass Fibre, while the fixed quantity of Poly Tetra Fluro Ethylene (PTFE) as 5wt. % was taken for hybrid composites preparation. The virgin and hybrid composite specimen were prepared under optimal process parametric conditions through the use of injection moulding techniques and test samples were produced as per ASTM standards. The response of physical properties such as density and various Mechanical testing like Hardness, Tensile Strength, and impact strength were carried out and noted.

The 3D Printing (3DP) technology due to its greatest strength, resistance to wear and corrosion to oxidizing agents and has good temperature resistance with durable one. The present article describes the effect of print orientation and infill density of 3DP route on mechanical and tribological properties of PETG filament. The 3DP parameters like layer thickness, slicing, speed, feed are kept as constant and by varying the print orientation (X, Y, Z) with infill density (50%, 75%, 100%) was printed to check the effect of it on mechanical and tribological properties like hardness, impact strength, ultimate tensile strength, flexural strength, wear rate and coefficient of friction. The results shows that all the tested mechanical and tribological properties increase by around 30-60% when the orientation is in the X direction at infill density of 100%.

Friction Stir Processing (FSP) is a solid-state processing approach that alters and enhances the properties of the matrix material. The prime objective of this research work was aluminium alloy 7075-T6 which has zinc as key alloying element next to aluminium and other alloying elements is reinforced by varying 0, 3, 6 and 9 wt.% tungsten carbide nanoparticles by FSP route. During experimentation, the FSP processing parameters like tool speed, traverse speed, axial load, and tool were being kept constant with four passes of processing. The test samples were prepared and tested as per standard procedures like hardness, ultimate tensile strength, impact strength and average values were recorded. Also, fracture surface morphology was studied.