Vinod Yadava

Vinod Yadava
Motilal Nehru National Institute of Technology | MNNIT · Department of Mechanical Engineering

PhD (IIT Kanpur)

About

144
Publications
21,112
Reads
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4,911
Citations
Additional affiliations
July 1998 - December 2001
Indian Institute of Technology Kanpur
Position
  • Researcher
July 1998 - December 2001
Indian Institute of Technology Kanpur
Position
  • PhD Student
December 2007 - December 2014
Motilal Nehru National Institute of Technology
Position
  • Professor (Full)

Publications

Publications (144)
Article
Slicing of material using a thin wire reduces the loss of material and provides better cutting quality compared to any other machining techniques. Moving wire electrochemical spark machining (WECSM) is a hybrid, non-conventional wire slicing process, specially for non-conducting materials such as ceramics, composites and glasses. In this research a...
Article
Titanium (Ti) alloys are extremely difficult-to-cut aerospace alloys due to their low thermal conductivity, high chemical reactivity, and high hardness. Making miniature holes in these alloys by traditional drilling is much difficult, because most of heat generated in the process passes through twist drill, which causes frequent failure of it. Elec...
Article
Inconel 718 is extremely difficult-to-machine by conventional drilling due to its low thermal conductivity and work hardening nature. Electrical discharge machining (EDM) is a well-known process to machine any hard and brittle electrically conductive material. But, in micro-EDM drilling of Inconel 718, ejection of debris from machining zone is a ch...
Article
Full-text available
Milling Electrochemical Spark Micromachining (M-ECSMM) is hybrid micromachining process which is used to create microfeatures in non-conducting materials. Silicon is one of the abundantly used material in microelectronics and micro-industry as base material for developing the user end products. In present paper, authors attempt to create the microc...
Article
The sequential application of erosion–abrasion is an innovative technique for shaping of electrically conductive objects but the integrated effect of erosion–abrasion in shaping makes the process complex resulting selection of input parameters are difficult for manufactures as well as researchers. The aim of present study is to optimize the paramet...
Chapter
Full-text available
The micro-milling is a micromachining process which can be characterized by the interaction of sharp rotating microtool and workpiece. This paper presents a brief review of various conventional and modern micro-milling techniques. The aim of this study is to introduce various micro-milling techniques so far developed such as CNC-based conventional...
Article
Advancements in micro-fabrication are characterized by a progressive miniaturization leading towards higher integration. The fabrication of particular size micro hole in difficile to machine engineering materials is one of the most challenging tasks in manufacturing industry. Since micro holes are prepared in the end product therefore the rejection...
Article
Full-text available
Purpose Polymer Nanocomposites are advanced engineering composites with enhanced properties. These materials play a central role in various industrial sectors. The growing awareness of the key parameters (which influence the physical properties) with different combination of matrix-reinforcement, are making them more attractive in various applicati...
Article
Electrical Discharge Machining (EDM) is a thermal energy based non-traditional shaping process for shaping of hard and brittle electrically conductive materials, but it suffers with low machinability and recast layer formations. The combination of grinding with EDM means enhancement in machining capability, but the process becomes highly complex. T...
Article
Electrical discharge diamond face surface grinding (EDDFSG) is a hybrid machining technique consisting of face surface electrical discharge grinding and diamond face surface grinding. The machining of hybrid metal matrix composites (HMMCs) is still facing challenges for better machining performance. In the present article, an effort was made for hy...
Article
Inconel 718 superalloy is widely used in aerospace industries for fabrication of the various components for aircraft engine because of its high strength at elevated temperature. It is an extremely difficult-to-machine material due to its work hardening nature and poor thermal conductivity. Creating micro-holes of high precision in this material is...
Conference Paper
Traveling Wire Electro-Chemical Spark Machining (TW-ECSM) is one of the most popular hybrid machining processes used for creating complex shapes on hard and brittle electrically nonconducting workpiece. This paper presents the investigations showing the effect of input cutting parameters on outputs material removal rate (MRR), kerf width (Kw) and s...
Article
Full-text available
Making miniature holes of acceptable tolerances in titanium alloys by conventional drilling is difficult due to frequent tool failure because of its poor thermal conductivity, high hardness, and high chemical affinity with cutting tool materials. Micro-electrical discharge machining (micro-EDM) has been found as a suitable method of machining of mi...
Article
Alumina epoxy nanocomposite (AENC) is an emerging class of composites with a wide range of functionality and applicability; however, managing AENC using a machine is difficult because of its special mixed characteristics. The presence of extremely hard alumina particles in soft epoxy matrix enhances material properties. The present work investigate...
Article
This paper describes the development of a new process termed as electro-discharge diamond drilling (EDDD) for making the holes in difficult-to-cut aerospace materials and validated with the newly developed hybrid approach of models for material removal rate (MRR), average surface roughness (Ra), and average circularity (Ca). The developed model con...
Article
Full-text available
The machinist curiosity about optimum machining and finishing performance has initiated mathematical modelling of experimental machining processes. Electrolytic Magnetic Abrasive Machining (EMAM) is one of the hybrid processes, evolved from two constituent processes namely Magnetic Abrasive Machining (MAM) and Electrochemical Machining (ECM). EMAM...
Article
In this paper, authors have endeavored to develop an experimental setup of Electrical Discharge Diamond Peripheral Surface Grinding which is a configuration of Electrical Discharge Diamond Grinding process. The machining performance characteristics were experimentally studied using the developed experimental setup during machining of a challenging...
Article
Hybrid machining techniques are effective means for machining of difficult-to-cut, electrically conductive hard and brittle materials. In the present work, performance characteristics of newly developed Electrical discharge diamond face surface grinding were experimentally studied during machining flat surfaces of a difficult-to-cut hybrid metal ma...
Article
The erosion-abrasion-based hybrid machining (EAHM) is newly developed machining process, which comprises the erosion-based machining such as electro-discharge grinding (EDG) and abrasion-based machining such as diamond grinding (DG) for machining of difficult to machine hard and brittle materials. The aim of this study is to develop an artificial n...
Article
Improving productivity and surface quality in sinking micro-electrical discharge machining (S-MEDM) process is still a challenging task for manufacturing engineers. In order to fulfil these requirements, modelling and optimisation of the S-MEDM process is needed. In this paper, a prediction model for S-MEDM process has been developed using the coup...
Article
Studies on the applicability of various configurations of Electrical Discharge Diamond Grinding (EDDG) are facing many challenges during the machining of advance difficult-to-machine materials. In the present paper, description of a new configuration of EDDG, called the Electrical Discharge Diamond Face Surface Grinding (EDDFSG) system, has been di...
Article
Full-text available
The machinist curiosity of exploring better machining and finishing processes beyond conventional machining processes for difficult to machine material has lead the genesis of hybrid processes. Electrolytic Magnetic Abrasive Machining (EMAM) process is one of the hybrid processes evolved from two constituent processes, namely Magnetic Abrasive Mach...
Article
Full-text available
Determination of material removal rate (MRR), tool wear rate (TWR) and hole taper (Ta) is a challenging task for manufacturing engineers from the productivity and accuracy point of view of the symmetrical and nonsymmetrical holes due to hole sinking electro discharge micro machining (HS-EDMM) process. Thus, mathematical models for quick prediction...
Conference Paper
Full-text available
Borosilicate glass has been set in the class of important engineering materials because of its excellent properties such as lower thermal expansion coefficient and lower density than soda lime glass, chemically inert, electrically non-conducting, optical clarity. Its applications are found in electronics industries, space exploration, chemical indu...
Article
Machining of the composites made of matrix and reinforcement is always a difficult for manufacturing industries due to their unusual properties. Among various existing traditional and non-traditional machining processes, erosion based machining process i.e., Electrical Discharge Grinding (EDG) and abrasion based process i.e., Diamond Grinding (DG)...
Article
This paper presents the application of a hybrid approach comprising of neural network and genetic algorithm for modelling and optimisation of creep feed deep surface grinding process. Finite element method has been used to generate dataset for neural network model. Subsequently, NN model has been coupled with genetic algorithm to find optimum input...
Article
This article describes the experimental investigation related to creation of holes in aerospace titanium alloy workpiece using static electrode machining and electrical discharge drilling (EDD) process. Special attachment for holding and rotating the tool electrode was developed and installed on electrical discharge machining (EDM) machine by repla...
Article
The use of short and ultrashort laser pulses for micromachining application is an emerging technology. Laser Beam MicroMachining (LBMM) has revolutionized many industries by providing innovative solutions in numerous industrial micro-engineering applications. High-intensity short or ultrashort laser pulses are powerful thermal energy source for cre...
Article
In this article, the authors have attempted to use altogether a new hybrid machining process for making the holes in nickel-based superalloy (nimonic alloy) aerospace material and termed it as electro-discharge diamond drilling process. To perform this experimental study, they self-designed and developed a setup which is capable to hold as well as...
Article
An innovative hybrid machining called as slotted-electrical discharge diamond face grinding (S-EDDFG) has been developed by comprising the electrical discharge face grinding and diamond face grinding. Due to complexity in S-EDDFG process, the selection of suitable combinations of input parameters is a challenging task for manufacturers. In recent,...
Article
Surface quality and process productivity are the challenging performance measures in grinding of difficult-tomachine materials these are measured in terms of Surface Roughness (Ra) and Material Removal Rate (MRR). Metal Matrix composites are the materials having aggregate properties of constituents like higher strength to weight ratio, toughness, s...
Article
Machining of metal matrix composites has always been challenges for manufacturing engineers due to the presence of hard and brittle reinforced particles. In this article, a new way of alternate application of electrical discharge grinding and abrasive grinding has been applied through the use of slotted grinding wheel. The developed machining proce...
Article
As silicon carbide possesses small fracture toughness, it is difficult to grind because it leads to cracking. Metal matrix composites can be machined using electrical discharge machining (EDM) but the process is slow. Electrical discharge diamond grinding (EDDG), which consists of diamond grinding and EDM with a rotating disk which enhanced materia...
Article
Advancement of new materials and machining technology has changed the domain and ranges both of aerospace vehicles, still a few problems of conventional as well as non-conventional machining processes is unresolved such as low material removal rate (MRR), frequent tool wear and poor surface finish, etc. In this experimental study, a new process in...
Article
Here we deal with the simulation of laser beam percussion drilling (LBPD) process after development of finite element (FE) model based thermal model incorporating the temperature dependent thermal properties, optical properties, phase change phenomena and effect of change in nozzle stand-off distance. Initially, transient temperature distribution i...
Article
Laser beam percussion drilling (LBPD) is used for the fabrication of small diameter hole in a wide variety of engineering materials. A computational thermal model to predict the hole taper and heat affected zone (HAZ) due to LBPD process will certainly help the manufacturing engineers to improve the quality and accuracy of laser drilled hole partic...
Article
Nickel-based superalloy sheets are widely used in aircraft and missile industries due to incomparable properties of superalloys such as high strength-to-weight ratio and corrosion resistance at elevated temperatures. Typical applications of superalloy sheets which require stringent design with exceptional good quality in manufacturing products is a...
Article
High amount of energy generated in the grinding zone is dissipated as a heat which leads to thermal damage to the workpiece. Heat transfer phenomena in high speed deep surface grinding (HSDSG) is entirely different than conventional shallow cut grinding. Due to high wheel speed and large depth of cut, the temperature rise in the grinding zone becom...
Article
In this article, an attempt has been made to optimize the selected input process parameters for material removal rate (MRR), average surface roughness (Ra) and average circularity (Ca) of the hole made by electrical discharge machining in a nickel-based superalloy material especially used in aerospace applications. The concept of twist drill is int...
Article
The present study focuses on experimental modelling of travelling wire electrochemical spark machining process using coupled methodology comprising Taguchi methodology and response surface methodology. Experiments were conducted on Pyrex glass workpiece using L-27 orthogonal array considering applied voltage, pulse on-time, pulse off-time, electrol...
Article
Hybrid machining processes (HMPs), having potential for machining of difficult to machine materials but the complexity and high manufacturing cost, always need to optimize the process parameters. Our objective was to optimize the process parameters of electrical discharge diamond face grinding (EDDFG), considering the simultaneous effect of wheel s...
Article
Slotted-Electrical Discharge Abrasive Grinding (S-EDAG) is a new innovative hybrid machining process, which is developed by comprising the Electrical Discharge Grinding (EDG) and Abrasive Grinding (AG) where both the processes occur alternatively. The selection of the suitable combination of process parameters is much difficult due to non-linear re...
Article
The development of an accurate model for the prediction of surface roughness is still a key issue for Micro Electro-Discharge Machining (micro-EDM) due to its complex nature. In this paper, a Finite Element Method (FEM) based thermal model is developed to estimate the surface roughness based on the geometry of crater produced during micro-EDM proce...
Article
Cylindrical Electrochemical Magnetic Abrasive Machining (C-EMAM) is an advanced abrasion-based hybrid machining process that constitutes magnetic abrasive machining and electrochemical dissolution. During the C-EMAM process, a large amount of material is removed from the peaks of the surface irregularities under the simultaneous effect of electroch...
Data
Full-text available
Laser Beam Cutting has capability to cut intricate profiles in difficult-to-cut sheet metals like ceramics, composites and superalloys. Nickel-based superalloy sheets in general, and SUPERNI 718 sheet in particular, are used as casing for jet engines, aero engine, turbine blades, turbo charger, pump bodies, and parts .For optimal setting of differe...
Article
Electrical discharge diamond grinding (EDDG) is a well-known process for machining of electrically conductive hard and brittle materials. Even though, EDDG process suffers with several drawbacks such as loss of diamond particles without wear, high wheel wear, accumulation of debris into gap, abnormal arcing, etc. The aim of this study is to minimiz...
Article
Drilling of holes in difficult-to-cut aerospace materials with desired surface finish and accurate geometry is beyond the capability of conventional twist drills. Nonconventional machining methods which have the capabilities to offset the cutting difficulties of twist drills are currently being used for making holes in hard materials under the term...
Article
Machining performance study of newly developed machining processes has always been a challenge to make them industrially viable. Traveling wire electrochemical spark machining (TW-ECSM) is a newly developed hybrid process in the area of nontraditional machining process which can be effectively utilized for difficult-to-cut electrically nonconductiv...
Article
Thin sheets of titanium alloys are widely used in aerospace and automotive industries for specific applications. The creation of micro holes with requisite hole quality in thin sheets of these alloys using energy of electric discharge is a challenging task for manufacturing engineers. Hole sinking electrical discharge micromachining (HS-EDMM) is on...
Article
Advanced manufacturing industries need materials with high strength and low weight in the fields of advanced engineering, such as automobiles and aeronautics. Metal matrix composites (MMCs) are one of the advanced engineering materials that meet the above requirements. To enhance the properties of MMCs, researchers added an additional phase of rein...
Article
Material removal rate (MRR) has been an important factor in predicting the performance measure of any micromachining process. Hole drilling electrical discharge micromachining (HD-EDMM) is an efficient technology for micromachining of electrically conductive engineering materials. A predictive artificial neural network (ANN) model for the MRR in HD...
Article
Metal matrix composites (MMCs) can be machined using electrical discharge machining (EDM) but the process is found slow. Electrical discharge diamond grinding (EDDG), which is a hybrid machining process (HMP) comprising of diamond grinding (DG) and electrical discharge grinding (EDG), has been found a viable machining method which enhances MRR and...
Article
Hole sinking electrical discharge micromachining (HS-EDMM) is used to create symmetrical micro features of relatively large depth to diameter ratio which is termed as micro hole. HS-EDMM is an efficient technology for micromachining of electrically conductive difficult to machine engineering materials. A predictive artificial neural network (ANN) m...
Article
The aim of this study is to develop an artificial neural network (ANN) model for spark assisted diamond face grinding (SADFG) of cobalt bonded tungsten carbide (WC-Co) composite to predict the material removal rate (MRR) and average surface roughness (Ra). The experiments were conducted on a self-developed face grinding setup, which is attached wit...
Article
The objective of this paper is to optimise the electrical discharge diamond face grinding (EDDFG) process. The experiments were performed on a self developed face grinding setup, which is attached with vertical column of EDM machine. The experiments were conducted on tungsten carbide-cobalt (WC-Co) composite workpiece considering the simultaneous e...
Article
This paper presents modelling and optimisation of cut quality during a self developed travelling wire electro-chemical spark machining (TW-ECSM) process. In the present study, four input process parameters such as applied voltage, electrolyte concentration, wire feed velocity and workpiece thickness and two output parameters such as surface roughne...
Article
Machining of advanced engineering materials like super alloys, heat treated alloys, titanium and carbide alloys, metal matrix composites and ceramics are become challenge for manufacturing industries, while these materials are highly required in field of modern manufacturing. In this paper, a new way of erosion-abrasion hybrid machining (EAHM) proc...
Article
Hybrid machining processes are advantageous for machining of difficult-to-machine hard and brittle materials due to their superior performance as compared to the constituent processes. The aim of the present study is to propose a novel hybrid machining called Slotted-Electrical Discharge Abrasive Grinding (S-EDAG), which is developed by comprising...
Article
The objective of the present research is to simulate cylindrical electro-chemical magnetic abrasive machining (C-EMAM) process for magnetic stainless steel (AISI-420). C-EMAM is a new hybrid machining process used for high efficiency finishing of cylindrical jobs made of advanced engineering materials. The material is removed from the workpiece sur...
Article
Optimization of performance characteristics and quality characteristics during hole drilling-electrical discharge micromachining (HD-EDMM) is necessarily multi-objective in nature and needs considerable attention for finding preferred operating values and levels for a desired output responses. A hybrid method comprising of grey relational analysis...
Article
Metal matrix composites (MMCs) are highly required in field of advanced engineering. Due to the abrasive nature of the reinforcements into matrix, machining of the MMCs is yet a challenge for manufacturing industries. In this paper, a new hybrid machining process named as slotted-electrical discharge diamond face grinding (S-EDDFG) has been propose...
Article
Full-text available
A new way of promising hybrid process called as Traveling Wire Electrochemical Spark Machining (TW-ECSM) process which combines the characteristics of Electro-chemical Machining (ECM) and Wire Electrical Discharge Machining (WEDM) and uses for machining of electrically non-conductive materials. In this paper the simultaneous optimization of multipl...
Article
Machining by abrasion is the most labor intensive and critical machining process to provide high quality finish on the parts. Abrasive finishing operations are usually applied as the last machining operation and its importance becomes more vital when the workpiece material is difficult-to-machine. Recently the promising processes of abrasion for di...
Article
The present investigation aims at evaluating the performance of electrical discharge diamond cutoff grinding (EDDCG) of cemented carbide. EDDCG is an abrasive based hybrid process consisting of diamond cutoff grinding (DCG) and electrical discharge cutoff grinding (EDCG) and is a playing major role in the processing of modern materials viz. cemente...
Article
The alternative use of electrical discharge grinding and abrasive grinding, which is applied with the application of slotted wheel named as slotted electrodischarge abrasive grinding, is much suitable for machining of metal matrix composites. But the selection of process parameters is a difficult task due to the complexity of the process. The aim o...
Article
The effective study of hybrid machining processes (HMPs), in terms of modeling and optimization has always been a challenge to the researchers. The combined approach of Artificial Neural Network (ANN) and Non-Dominated Sorting Genetic Algorithm-II (NSGA-II) has attracted attention of researchers for modeling and optimization of the complex machinin...
Article
The present paper attempts to focus an application of a hybrid methodology comprising of Taguchi methodology (TM) coupled with response surface methodology (RSM) for modeling and TM coupled with weighted principal component (WPC) methodology for multiobjective optimization of a self developed traveling wire electro-chemical spark machining (TW-ECSM...
Article
Machining of metal matrix composites (MMCs) are still a challenge for manufacturing industries. Among various machining processes, electrical discharge machining (EDM) and diamond grinding (DG) are more acceptable processes for machining of the MMCs. In this paper, a new compound wheel (CW) is developed in such a way that both processes (EDM and DG...
Article
The creation of small diameter holes in thin sheets (<3 mm) of superalloys using a laser beam is a challenging task. Knowledge of the effect of laser related process variables on hole related responses with respect to variation of sheet thickness is essential to obtain a hole of requisite quality. Therefore, in this paper a coupled methodology comp...
Article
Modeling and optimization of machining processes using coupled methodology has been an area of interest for manufacturing engineers in recent times. The present paper deals with the development of a prediction model for Laser Beam Percussion Drilling (LBPD) using the coupled methodology of Finite Element Method (FEM) and Artificial Neural Network (...
Article
Electrical discharge diamond cut-off grinding (EDDCG), which is an abrasive based hybrid machining process comprising of diamond cut-off grinding (DCG) and electrical discharge machining (EDM) with rotating disk, is gaining popularity in machining of advanced engineering materials such as titanium alloys, super alloys, cemented carbides, cemented n...
Article
A thermal finite element model is proposed to simulate and predict hole taper (T-sigma), heat-affected zone and material removal rate during laser beam percussion drilling in two difficult-to-laser-drill materials having wide difference in their thermophysical and optical properties. The developed model incorporates temperature-dependent thermal pr...
Article
This work presents the characteristics of advanced abrasion based hybrid machining process consisting of electrochemical dissolution and magnetic abrasive machining process. The cylindrical electrochemical magnetic abrasive machining (C-EMAM) setup was developed and mounted as an attachment on lathe for high efficiency machining of cylindrical jobs...
Article
Determination of hole taper and extent of heat affected zone is a challenging task for manufacturing engineers from the quality and accuracy point of view of the laser-drilled hole especially in reflecting materials like aluminum. In this article, an axisymmetric finite element method-based thermal model has been developed for the determination of...
Article
Material removal rate (MRR) and surface roughness (SR) have always been a big deal during any manufacturing process. Metal matrix composites (MMCs) can't be effectively machined by conventional grinding and process is found to be slow when machined by electrical discharge machining (EDM). Present work is an attempt for modeling of electrical discha...
Article
In the present study, a novel technique, namely, evolutionary non-dominated sorting genetic algorithm-II (NSGA-II) was used in conjunction with developed artificial neural network (ANN) model to select optimal process parameters for achieving the better process performance in LBC. First, ANN with backpropagation algorithm was used to model the LBC...
Article
a b s t r a c t :The key to achieve good surface integrity in the workpiece due to Electro-Discharge Diamond Grinding (EDDG) process, which is hybrid of grinding and EDM, is by preventing the excessive temperature and thermal stress generated during the process. EDDG in sur-face grinding mode called Electro-Discharge Diamond Surface Grinding (EDDSG...
Article
CO2 Lasers in general, and Nd:YAG lasers in particular, are widely used for cutting of reflective sheetmetals to obtain the exceptional good quality cut. Due to shorter wavelength of Nd:YAG laser, it is reflected by lesser extent from the metallic surfaces. This paper presents the modelling and optimization of cut quality characteristics during Nd:...
Article
Laser beam percussion drilling is used for the rapid fabrication of small diameter hole in a wide variety of engineering materials. A computational thermal model to predict the material removal rate will help to enhance the cost effectiveness of LBPD process especially for material like aluminium which has very low machinability during laser beam m...
Article
The aim of this paper is to develop an intelligent model for prediction of input-output relationship of slotted-electrical discharge diamond grinding (S-EDDG) process using back propagation neural network (BPNN) architecture. The experiments were conducted on aluminium-silicon carbide-graphite (Al/SiC/Gr) composite workpiece using a slotted abrasiv...
Article
This paper presents an application of DOE-based hybrid approach for the determination of preferred operating laser cutting parameters which minimises the average kerf taper (T<sub align="right"> a </sub>) and average surface roughness (R<sub align="right"> a </sub>) together during pulsed Nd: YAG laser cutting of thin aluminium alloy sheet for stra...
Article
The present paper describes the development of artificial neural network (ANN) model and multi-objective optimisation technique to predict and select the optimum machining parameters of the hole drilling electrical discharge micromachining (HD-EDMM) process. To predict the performance parameters, ANN model has been developed using back-propagation...
Article
In modern manufacturing industries, the requirement for high-precision surface quality is increasing drastically. To achieve such kind of precision accuracy for surface finish, the magnetic abrasive finishing (MAF) process has been developed. In MAF, the workpiece is kept between two poles of magnet and the magnetic field is controlled by varying t...
Article
This paper presents the study of hybrid machining process consisting of electrochemical dissolution and magnetic abrasive machining. Experiments were conducted on self-developed cylindrical electrochemical magnetic abrasive machining (C-EMAM) setup to explore the finishing results of the process on non-magnetic stainless steel using unbonded magnet...
Article
This paper reports the development of neural network model and experimental study of electrical discharge diamond cutoff grinding (EDDCG) during machining of cemented carbide for average surface roughness (Ra). EDDCG is combination of diamond grinding and electrical discharge grinding. This process has been developed for machining of electrically c...
Article
Traveling Wire Electro-Chemical Spark Machining (TW-ECSM) is an innovative hybrid machining process, combining the features of the Electro Chemical Machining (ECM) and Wire-Electro Discharge Machining (WEDM). It is more suitable for machining of electrically non-conductive engineering materials. Conventional machining methods and some unconventiona...
Article
Grinding of Metal matrix composites (MMCs) which are making inroads in various engineering applications have proved to be extremely difficult to machine due to presence of hard ceramic reinforcement. Electro-discharge machining (EDM) of MMCs containing electrically non conducting phases possess few problems in terms of hampering the process stabili...
Article
Hole drilling electro discharge micro machining (HD-EDMM) is one of the potential method for creation of micro-holes in difficult to machine electrically conductive workpiece materials. Maintaining quality and accuracy of the drilled micro-holes along with better performance characteristics have always been a challenge for the researchers and manuf...
Article
High energy input of grinding that is dissipated as heat in grinding zone leads to thermal damage to the workpiece material. Heat transfer phenomena during deep cut grinding in general and creep feed deep cut grinding in particular is entirely different than the shallow cut grinding processes. Therefore, investigation of the temperature distributio...
Article
Electro-discharge diamond grinding is a hybrid process of electro-discharge machining (EDM) and diamond grinding which is obtained by replacing the tool electrode of conventional EDM by a metal bonded diamond wheel. When face of the wheel is used for machining then the process is termed as electro-discharge diamond face grinding (EDDFG). In this st...
Article
Full-text available
This paper presents a hybrid approach for optimising laser straight cutting of Ni-based superalloy thin sheet. The hybrid approach comprises of Taguchi methodology (TM) and response surface methodology (RSM). The input process parameters taken are oxygen pressure, pulse width, pulse frequency and cutting speed. The experimental output characteristi...
Article
Thin sheets of aluminium alloys are widely used in aerospace and automotive industries for specific applications. Nd:YAG laser beam cutting is one of the most promising sheetmetal cutting process for cutting sheets for any profile. Al-alloy sheets are difficult to cut by laser beam because of its highly reflective nature. This paper presents modell...

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