Ravi Butola

Guru Gobind Singh Indraprastha University | GGSIPU · Automation & Robotics/ Mechanical Engineering

3D printing gives us a glimpse into the future of additive manufacturing that might possibly revolutionize the industry. It is a highly efficient manufacturing method as no waste formation occurs due to its “additive” nature. In this paper, we utilize eco-friendly polylactic acid (PLA) as a raw material in the fused deposition modelling approach of...

The increasing concentration of heavy metals in the water ecosystems has become a noteworthy concern. This has accounted for various diseases due to the bioaccumulation in the human body. We propose a biocompatible, non-toxic technique for the identification of heavy metal ions from the contaminated aquatic samples. A urease biosensor, having inter...

In the present work, bead-on-plate welds were carried out on 304L austenitic stainless steel using Synergic MIG process. In this present investigation 304L having 1.2 mm diameter was used as an electrode with direct current electrode positive polarity. Argon and CO 2 was employed for shielding purposes. The fusion zone is generally characterized by...

In the present research work, microhardness and ultimate tensile strength of the aluminum based metal surface nanocomposites is studied using response surface methodology. Aluminum alloy 5083 is used as a matrix material, boron carbide nanoparticles as a reinforcement and surface nanocomposites are fabricated using Friction stir processing (FSP). C...

The tribological simulation can be seen as a new study problem developed through modern information technology and computer simulation technology in combination with a variety of mathematical approaches in the field of tribology. There is a need to seek new conducts and means of in-depth study of the wear quantitative law, or else, it will become d...

There is a dynamic shift underway from traditional technology due to the revolution of industries. Conventional techniques are hindered and advanced technologies are coming into existence. Friction stir processing is one of the processes spreading its usage across the field. Formation of surface composites with inclusion ceramics is one of the grea...

Welding is a fabrication process used for joining two metals or non-metals by producing coalescence between them. However, welding process is destructive in nature. Therefore, impact of processing parameters on bead characteristics has drawn the interest of researchers around the globe. The complexity in analysis of bead characteristics lies in the...

A significant amount of environmental pollution is caused by oil refinery industries in the form of spent alumina catalyst (SAC) waste generated during the process. This waste causes various detrimental effects on human health. In this study, an effort has been made to consume the SAC in the fabrication of aluminum-based composite materials via the...

In development of nanocomposite the aim of the present work is the formation of self-assembled monolayer (SAM) of boron carbide over the surface of AA6063 using via friction stir processing (FSP). Boron Carbide nano-particle is bonded over the surface of AA6063 followed by FSP technique. To ensure uniform distribution of nanoparticle, reinforcement...

Friction stir processing (FSP) is a new technique that offers a green way of synthesizing composites. FSP is usually used to produce a composite layer on a substrate. This layer is known as surface composite. FSP utilizes the concept of severe plastic deformation to produce heat and create composites by combining the substrate material and reinforc...

The presence of residual stresses within a friction stir welded structure commonly results in severe deformation and weakness in the structure's ability to withstand imposed external loads. Coupled Eulerian Lagrangian approach was applied to develop the simulation analysis and investigate the thermal behaviour and stresses occurring during welding....

Friction stir processing (FSP) of Al7075-T6 and Boron Carbide(𝐵4𝐶) nanoparticles as reinforcement were performed adopting Taguchi’s 𝐿9 orthogonal array. Optimisation of parameters which are transverse speed (TS), tool rotational speed (TRS), and tool pin profile (TP) based on residual stress and microhardness was done using Taguchi and Grey Relatio...

In the present research, measurement of residual stress induced during turning and threading operations for the fabrication of two types of pin profiled friction stir processing/welding (FSP/FSW) tools, i.e. cylindrical profiled pin tool and cylindrical threaded profiled pin tool, is being dealt with. Workpiece was chosen to be H13 tool steel with...

This research focuses on the use of Artificial Neural Network (ANN) for the prediction of the microhardness of friction stir processed aluminium based metal matrix composite (AA6061+Al2O3). Different specimens were obtained by using rotating speeds of 1100, 1210, 1320 and 1430 rpm and travelling speeds of 36, 48, 60, 72 mm/min. The microhardness va...

In the present work, nanoboron carbide is integrated in the aluminum matrix using friction stir processing: by varying process parameters, that is, tool pin profile, tool rotational speed and tool traverse speed, based on Taguchi L 16 design of experiment. A self-assembled monolayer is successfully developed on the substrate to homogeneously and un...

Friction stir processing is a technique for the modification and fabrication of surface composites. Surface composites of aluminium have a diverse application in industries like aerospace and automobile. Here, B4C nano-particles (< 30 nm) have been employed as the reinforcement on AA7075 based substrate alloy and surface composites have been constr...

Friction stir processing (FSP) has materialised as a significantly improved procedure for surface modification and fabrication. This has propelled its use in the industries of aerospace, automobile, and suchlike. Surface composites have many advantages over conventional composites and FSP is extensively used for their fabrication. In this study, we...

In comparison to the traditional reinforced composites, Friction stir processed composites have emerged to be more promising because of their better properties such as strength, hardness, ductility. To note that traditional methods have proved to interfere with the bulk properties of the material and have failed to align with the modern green globe...

Aluminium surface composite having ceramic reinforcement is successfully developed using friction stir processing at different tool rpm. Pin-on-disc test was performed at different sliding distances (300 m, 600 m, 900 m) and at different applied loads (20 N, 30 N, 40 N), to analyse wear behaviour of the fabricated composites. Response surface metho...

Purpose This study aims to analyse the changes in mechanical and wear performance of aluminium alloy when yttrium oxide particles are incorporated. The microstructures are studied to analyse the change in the grain structures. Worn surfaces are observed via scanning electron microscope to study the wear mechanism in detail. Design/methodology/appr...

Climate change has necessitated the development of "green" alternatives to replace existing materials. This focus has resulted in the push toward fabricating natural fiber-reinforced polymer composites. This research work looks at the surface roughness (SR) of natural fibers like rice husk ash (RHA) and groundnut shell ash (GSA) reinforced in nine...

Manufacturing processes such as casting, rolling, forging, extrusion, material removal processes, etc. are some of the common techniques used today in manufacturing industries. However, these processes must be carried out with utmost precision and precaution. Even the slightest negligence can give rise to anomalies which can be classified as defect...

Friction Stir Processing (FSP) is a surface modification and surface composite fabrication technique that was first theorized and demonstrated in 2002. Since then, it has grown exponentially in the industry due to its efficiency, ease of usability and various other advantages over conventional surface modification and fabrication processes. Artific...

In the present research work, AA7075 composite reinforced with silicon carbide particles has been fabricated using Friction stir processing (FSP). The silicon carbide particles having a size of 40 μm were placed in grooves of length 160 mm, width 2 mm, depth 3.5 mm, that were generated on the AA7075 plate. The square pin tool is utilized for fabric...

The development of residual stresses in tools due to machining is a widely known fact and these residual stresses can often lead to unwanted modifications in tool life. Turning, tapering and threading are extensively used in various manufacturing processes and they are specially used for the machining of different types of Friction stir welding/ pr...

In the present research study, Friction stir processing (FSP) has been utilized to prepare nano surface composites, AA7075 based matrix was reinforced with B 4 C nanoparticles (size <30 nm). The aim of this study is to form a thin layer of B 4 C over the surface of AA7075 based matrix material through Self-Assembled Monolayer (SAM) technique follow...

Residual stresses have been considered to be an important parameter when friction stir processing (FSP) tool is to be manufactured. FSP has often been used for surface modification and fabrication of surface composites. Involuntary residual stress in a designed tool may cause it to fail before due time. Because of this, the knowledge about the stre...

Aluminum based hybrid metal matrix composites (HMMC) are being employed nowadays in automobile, aeronautical, sports equipment etc. In this study, three different Al6063 based hybrid metal matrix composites (HMMC) samples having reinforcement with 3%, 6% and 9% by weight respectively are fabricated using stir casting method. Reinforcements used are...

The magnetic field-assisted surface finishing process needs a sintered magnetic abrasive powder which could be a mixture of SiC and CIP particles. Tube furnaces have been used to develop SiC-based sintered magnetic abrasives. The focus of this article is to investigate the anticipated results and to carry out the fabrication setup of sintered magne...

Mechanical and wear properties of AA7075-T6 reinforced with SiC and Aloevera ash, fabricated using Friction stir processing (FSP) are investigated in this study. Due to less density, easy availability, and cost-effectiveness, aloevera ash is considered as one of the reinforcements. FSP is done using a square tool pin profile, at different tool rota...

Among several methods to fabricate Aluminium metal matrix composites, stir-casting technique is used for large-scale production due to its being less expensive. This research is concerned with the fabrication of Aluminium composites with SiC and Jute Ash Particles, for sake of producing a cost-effective composite with enhanced properties. Wear beha...

The aim of the study is to investigate the dynamic mechanical properties of different samples viz. 200,250,300,600 GSM (Gram per Square Metre) of glass fibres through Dynamic Mechanical Analysis (DMA). DMA is a technique that is widely used to characterize a material’s properties as the variation of dynamic properties (Storage modulus, Loss modulus...

Fabrication of glass fibre reinforced plastic was done using wet layup process and is discussed in the paper. The main purpose of the experiment was to identify the changes in the GFRP when subjected to various chemical resistance test and toughness test. GFRP was combined with different materials to form hybrid natural composite whose characterist...

In the present research, work is carried out for the parametric effects like tool rotation speed, tool profile and reinforcement in friction stir processing (FSP) of AA7075 on the microhardness and microstructural properties. The experiment design was carried out using Taguchi L9 orthogonal array with three factors at three levels. Three different...

Al based-Hybrid Metal Matrix Composites (HMMC) are becoming widely popular in the Automobile industry due to its highly attractive characteristics of enhanced hardness. The heterogeneous mixture formed due to the presence of reinforcement particles adds to the strength, wear resistance, hardness etc. to the specimen. In this research, fine ashes of...

Aluminium is one of the most common metals in the world and its use is increasing day by day in many industries mostly in space industry and automobile industry because of its light weight and high strength capabilities. Aluminium-based alloys have great potential for cost saving application due to their light weight combine with high specific stre...

In the experimental investigation on drill bit assisted AFM setup, a developed spline, two start helical profile and three start helical profile have been studied. It has been found that the use of new developed profile led to an improvement in the response parameter of percentage improvement in surface finish and material removal.Drill bit assiste...

Electro-chemical machining (ECM) is one of the mass production method for machining of hard and tough alloys. Drilling a straight with a bare tool contributes to side machining also.Hence taper is observed. One of the solutions is to provide side insulation but in this paper bare tool is designed to reduce overcut without insulation. The Electroche...

Experimental study was carried out to analyze the effects of various welding parameters such as Welding current, Welding speed, Plate thickness and Gas flow rate on bead geometry features; such as bead reinforcement height, bead width and bead penetration of synergic welding through voltage transients for 304L stainless steel. Various thicknesses h...

In order to tackle a multi-objective optimization problemwhich seeks identification of the best process condition or parametric combination for the manufacturing processes, dry and wet turning, In the present experiment investigation on straight turning of mild- steel bar by using HSS tool. The experiment aimed at evaluating the best process enviro...

Electro Discharge Machining (EDM) is a thermal erosion process that uses series of electrical discharges to remove material from anelectrically conductive workpiece. The material erosion in EDM process is very complex in nature and several attempts have been made to model the EDM process.This paper presents an overview of the EDM material erosion p...