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Articles 1 - 30 of 1615

Full-Text Articles in Mechanical Engineering

Dynamic Interaction Between Manipulator And Omni-Directional Platform, G. R. Nikhade, Dr. Vishwas S. Deshpande, S. S. Chiddarwar Sep 2020

Dynamic Interaction Between Manipulator And Omni-Directional Platform, G. R. Nikhade, Dr. Vishwas S. Deshpande, S. S. Chiddarwar

International Journal of Applied Research in Mechanical Engineering

Recent advancements in mechatronics has led to tremendous development of application of robots for industrial applications involving high health hazards, rough working conditions and difficult to reach locations. Robot assisted welding is one such high risk operation for human being. The industrial arc welding robots are either mounted on the floor, table or on overhead rails. In this scenario, the jobs to be welded are brought to shop floor. However, the on-sight joining of big pipes and structures with precision and speed, demands for mobility of welding robot. In this research work, a novel concept of mounting 5-dof welding robot ...


Optimization Of Edm Parameters Using Integrated Approach Of Rsm, Gra And Entropy Method, Sanjay Kumar Majhi Sep 2020

Optimization Of Edm Parameters Using Integrated Approach Of Rsm, Gra And Entropy Method, Sanjay Kumar Majhi

International Journal of Applied Research in Mechanical Engineering

This paper presents a hybrid optimization approach for the determination of the optimal process parameters which maximize the material removal rate and minimize surface roughness & the tool wear rate. The input parameters of electrical discharge machining considered for this analysis are pulse current (Ip), pulse duration (Ton) & pulse off time (Toff). The influences of these parameters have been optimized by multi response analysis. The designed experimental results are used in the gray relational analysis & the weight of the quality characteristics are determined by the entropy measurement method. The effects of the parameters on the responses were evaluated by response surface ...


Multi-Objective Optimization For Design Of Single Row Layout In Flexible Manufacturing System With Scheduling Constraint:An Approach Of Nontraditional Optimization Techniques, K. Mallikarjuna Sep 2020

Multi-Objective Optimization For Design Of Single Row Layout In Flexible Manufacturing System With Scheduling Constraint:An Approach Of Nontraditional Optimization Techniques, K. Mallikarjuna

International Journal of Applied Research in Mechanical Engineering

Single row layout is one of the most usually used layout patterns in industries, particularly in flexible manufacturing systems. Here actual sequencing of machine and arrangement of parts, no doubt, have a great influence on the throughput of the flexible manufacturing system i.e., (F.M.S). This paper discusses the single row layout design in flexible manufacturing system (F.M.S). This paper furnishes the design, development and testing of simulated annealing technique and genetic algorithm to solve the single row layout problem by considering multi-objective i.e., minimizing the make span of jobs on all machines and minimizing ...


Analytical Modeling Of Planetary Gear And Sensitivity Of Natural Frequencies, Majid Mehrabi Sep 2020

Analytical Modeling Of Planetary Gear And Sensitivity Of Natural Frequencies, Majid Mehrabi

International Journal of Applied Research in Mechanical Engineering

This work develops an analytical model of planetary gears and uses it to investigate their natural frequencies and vibration modes. The model admits three planar degrees of freedom for each of the sun, ring, carrier and planets. Vibration modes are classified into rotational, translational and planet modes. The natural frequency sensitivities to system parameters are investigated for tuned (cyclically symmetric) planetary gears. Parameters under consideration include support and mesh stiffnesses, component masses, and moments of inertia. Using the well-defined vibration mode properties of tuned planetary gears, the eigen sensitivities are calculated and expressed in simple exact formulae. These formulae connect ...


Vibration Analysis Of Planetary Gear System, Majid Mehrabi Sep 2020

Vibration Analysis Of Planetary Gear System, Majid Mehrabi

International Journal of Applied Research in Mechanical Engineering

In this work a dynamic model of a planetary gear transmission is developed to study the sensitivity of the natural frequencies and vibration modes to system parameters in perturbed situation. Parameters under consideration include component masses ,moment of inertia , mesh and support stiff nesses .The model admits three planar degree of freedom for planets ,sun, ring, and carrier. Vibration modes are classified into translational, rotational and planet modes .Well-defined modal properties of tuned (cyclically symmetric) planetary gears for linear ,time-invariant case are used to calculate eigensensitivities and express them in simple formulae .These formulae provide efficient mean to determine the ...


Heat Transfer Enhancement Using Different Geometry Of Twist Tape Turbulators: A Review, Indrakant Singh, Dr. Nilesh Diwakar Sep 2020

Heat Transfer Enhancement Using Different Geometry Of Twist Tape Turbulators: A Review, Indrakant Singh, Dr. Nilesh Diwakar

International Journal of Applied Research in Mechanical Engineering

The development of high-performance thermal systems has increased interest in heat transfer enhancement techniques. The high thermal performance enhancement of heat exchanger systems is needed to use energy source efficiently due to the sky-rocketing prices of petroleum and coal fuels. Heat exchangers are widely used in industry both for cooling and heating. Insertion of turbulators in the flow passage is one of the favorable passive heat transfer augmentation techniques due to their advantages of easy fabrication, operation as well as low maintenance. The purpose of this review presents the effect of twisted tape turbulators on the heat transfer enhancement, pressure ...


An Intelligent Permeability Optimization System At Sinter Plant Of Rourkela Steel Plant, Ayan Goswami Sep 2020

An Intelligent Permeability Optimization System At Sinter Plant Of Rourkela Steel Plant, Ayan Goswami

International Journal of Applied Research in Mechanical Engineering

The permeability of sinter mix is one of the vital parameters that affect the performance of sintering process. The amount of water added in the granulation drum has a significant effect on the permeability of the sinter bed and sinter machine productivity. Considering the variation in input feed materials and the parabolic nature of permeability-moisture curve, the optimum level of water addition is a difficult task for the operator to determine. Therefore a mathematical model based intelligent permeability measurement system is developed which determine the required amount of water to be added in granulation drum to achieve the optimum permeability ...


Target Hit Interceptor Mid-Course Guidance Scheme For Ballistic Missile Interception, N. Prabhakar, K. Chandra Sekhar, V. Vaidiyanathan Sep 2020

Target Hit Interceptor Mid-Course Guidance Scheme For Ballistic Missile Interception, N. Prabhakar, K. Chandra Sekhar, V. Vaidiyanathan

International Journal of Applied Research in Mechanical Engineering

A Mid-course guidance algorithm has been developed for an exo-atmospheric interceptor to neutralize an incoming high speed ballistic Target. The guidance scheme positions the interceptor ahead of the target so that the velocity vectors of the target and interceptors are in the same direction. As the interceptors used in ballistic missile defence have a lower velocity than the incoming target, the target approaches the interceptor. The guidance scheme reduces the closing velocity compared to a head on approach thereby increasing the homing time for a given terminal sensor detection range. The guidance law is validated through numerical simulation.


Formulation Of Mathematical Model For Maintenance Cost Of A Stone Crushing Plant Based On Dimensional Analysis And Multiple Regression, Anjali J. Joshi, Dr. Jayant P. Modak Sep 2020

Formulation Of Mathematical Model For Maintenance Cost Of A Stone Crushing Plant Based On Dimensional Analysis And Multiple Regression, Anjali J. Joshi, Dr. Jayant P. Modak

International Journal of Applied Research in Mechanical Engineering

This paper presents the approach for the mathematical modeling of maintenance cost for the set up of new Stone Crushing Plant based on the dimensional analysis and multiple regression. Presented maintenance cost mathematical model is derived based on the generated design data. Design data is generated from actual design of all stone crushing plants followed by static and dynamic analysis. Estimation of design data is carried out based on the assumed plant layout. Dimensional analysis is used to make the independent and dependent variables dimensionless and to get dimensionless equation. Later, multiple regression analysis is applied to this dimensionless equation ...


Numerical Study On The Sensitivity Analysis For Strength And Stiffness Of Regular Cellular Solids, H.M Silva Sep 2020

Numerical Study On The Sensitivity Analysis For Strength And Stiffness Of Regular Cellular Solids, H.M Silva

International Journal of Applied Research in Mechanical Engineering

The aim of this study is to present a sensitivity analysis of geometric variables on the mechanical behavior of regular cellular solids. The cellular solids studied are named “spherical” and “elliptical”, if there is part of an empty sphere inside or if there is part of an empty revolved ellipse, respectively. Pure loads are applied separately, namely compression and shear, in order to study the influence of the variables on axial stress and axial displacement (compression) and shear stress and shear strain on shear. The sensitivity analysis is useful to establish limits for the studied variables in an optimization process ...


Fabrication Of Micro-Well In Pmma By Pcm And X-Ray Lithography, Sachin Bhosale Sep 2020

Fabrication Of Micro-Well In Pmma By Pcm And X-Ray Lithography, Sachin Bhosale

International Journal of Applied Research in Mechanical Engineering

During the last decade there has been a rapid development in Micro-Fabrication Technology driven by the need for low-cost Micro-Components and Micro-Systems. Micro-Components will be required in a range of new products such as medical devices, Micro-Well, Micro-Pillar Micro-Fluidic Systems. Applications for Micro-Systems have stimulated innovative developments, created new markets and a demand for low-cost components. These are particularly important in manufacturing industries such as the automotive, chemicals, medical instruments, computer parts and telecommunication sectors. The drive towards miniaturization places is increasing demand for new techniques and novel processing technologies. This paper describes the Manufacturing of X-ray Mask with Photo-Chemical ...


Guided Pump-As-Turbine: Design And Development For Pico-Level Energy Generation, Ritesh Singh Sep 2020

Guided Pump-As-Turbine: Design And Development For Pico-Level Energy Generation, Ritesh Singh

International Journal of Applied Research in Mechanical Engineering

The Project- “Guided Pump as Turbine” aims to further research in the field of Pico Hydel Projects. This has been accomplished by building a prototype “Pump as Turbine” apparatus consisting of a centrifugal pump running as turbine to generate power. Along with these apparatus the centrifugal pump is converted to guided-pump where stator is appropriately introduced into the system. The purpose of this is to enhance the efficiency of the system. The project holds tremendous benefit by way of providing power/electricity to small communities dwelling in regions having potential for pico-scale hydel power exploitation. The development of the prototype ...


Design And Prototyping Of Envelope Pasting Machine, P.M. Nikhil Sep 2020

Design And Prototyping Of Envelope Pasting Machine, P.M. Nikhil

International Journal of Applied Research in Mechanical Engineering

Envelopes are the basic means used for communication. They come in different shape and size. These are used for sending letters, parcel, admit cards for entrance exams, telephone bills, electricity bills, etc. Before sending these envelopes they have to folded and pasted which is done manually due to which lot of effort and time is wasted. This paper discuss the development of a machine that folds and paste the envelope thereby minimizing the human effort and time.


Thrust Force Analysis Of Spike Bell Nozzle, V. Gopala Deva Kowsik Sep 2020

Thrust Force Analysis Of Spike Bell Nozzle, V. Gopala Deva Kowsik

International Journal of Applied Research in Mechanical Engineering

Aerospike nozzle is often described as an inside-out bell shaped nozzle and named for its prominent spike located at centre. This project mainly focuses on design of various types of nozzles such as aerospike, truncated aerospike and spike bell nozzles. In theoretical approach, the efficiency of rocket nozzles is calculated with design parameters such as throat area, exit area, chamber pressure and so on. From theoretical approach it is inferred that the spike bell nozzle has an increased value of thrust when compared to other nozzle types. So meshing and internal flow analysis is carried out for spike bell nozzle ...


Euler Angle Error Computation And Thrust Vector Control Scheme For Initial Turning Phase Of A Vertical Launch Surface To Air Missile, Ram B. Sankar Sep 2020

Euler Angle Error Computation And Thrust Vector Control Scheme For Initial Turning Phase Of A Vertical Launch Surface To Air Missile, Ram B. Sankar

International Journal of Applied Research in Mechanical Engineering

A vertical launch missile requires to be turned towards the Predicted Interception Point (PIP) with the target within few seconds from the launch. The autopilot used for the same requires the error in Euler Angles between the missile and the target to be supplied, which is generally computed using Error Quaternions approach [1]. For some kinds of engagement scenarios, say a Near Boundary Low Altitude target, the turn angle required in the pitch plane during the initial phase can become more than 90 degrees. In such cases, the conventional 3-2-1 frame transformation method fails to compute the Euler Angle errors ...


Evaluation Of S.I.F For Crack Emanating At 450 Orientation From A Hole In Pressurised Cylinder Using Fea, D.A Akash. Sep 2020

Evaluation Of S.I.F For Crack Emanating At 450 Orientation From A Hole In Pressurised Cylinder Using Fea, D.A Akash.

International Journal of Applied Research in Mechanical Engineering

The use of fracture mechanics techniques combining with Finite Element Analysis [F.E.A] in assessment of performance and reliability of pressure vessel structure is on demand .The machine elements with cylindrical profile such as cylindrical shells, which are used extensively as the structural configuration in aerospace and shipping industries needs to be leak proof. But during their service life, a crack may initiate on internal/external boundary of circular cylinder which influences on stress distribution in the structure. All flaws in a physical structure may not always have the same orientation relative to boundaries and material interfaces. In fracture ...


Analysis Of Flow Through A Double-Acting Impeller With A Straight Radial Blades Using Cfd, Suthep Kaewnai, Somchai Wongwises Sep 2020

Analysis Of Flow Through A Double-Acting Impeller With A Straight Radial Blades Using Cfd, Suthep Kaewnai, Somchai Wongwises

International Journal of Applied Research in Mechanical Engineering

This study aims to analyze water flow through a centrifugal pump with straight radial blades double-acting impeller using computational fluid dynamics (CFD). The impeller analyzed was designed with the following conditions: a volume flow rate of 33.5 m3/h, head of 100 m, rotational speed of 2,950 rpm, and specific speed of 9. The first stage began with calculations for various dimensions of double-acting isolated impeller and impeller-collector assembly, followed by three-dimensional drawing and domain specification. In the second stage, grids for the isolated impeller and impellercollector assembly were generated. In the third stage, the initial conditions and ...


Experimental And Analytical Studies On The Determination Of Hole Quality In Dry Drilling Of Gfrp Composites, B. Ramesh, A. Elayaperumal, S. Satish Kumar Sep 2020

Experimental And Analytical Studies On The Determination Of Hole Quality In Dry Drilling Of Gfrp Composites, B. Ramesh, A. Elayaperumal, S. Satish Kumar

International Journal of Applied Research in Mechanical Engineering

In this investigation nonlaminated Glass Fiber Reinforced Plastic (GFRP) composite rods made by pultrusion method with high fiber weight fraction was drilled with a special geometry coated carbide drill. The ovality of the drilled holes were measured using CMM. Taguchi’s orthogonal array and analysis of variance (ANOVA) were employed to study the influence of process parameters such as feed and spindle speed on ovality. The optimum level of process parameters towards minimum ovality were obtained to achieve defect controlled drilling of pultruded GFRP composite rods. Correlation for ovality with process parameters were established using a statistical software MINITAB 16 ...


Ultrasonic Assisted Casting Of Aluminum Matrix Composite, Rahul Gupta Sep 2020

Ultrasonic Assisted Casting Of Aluminum Matrix Composite, Rahul Gupta

International Journal of Applied Research in Mechanical Engineering

In this study, we have investigated the effect of ultrasonic stirring in aluminium matrix composite (A359 + 20 vol % SiC ) with the reinforcement of 1 mole % of carbon black. Melting experiments were performed by employing four different conditions. These were – carbon black addition accompanied with mechanical stirring, carbon black addition accompanied with ultrasonic stirring, ultrasonic stirring but no carbon black addition and control specimen (without ultrasonic stirring and no carbon black addition). Hardness comparisons between the samples casted at different condition were made. Sample which was ultrasonically treated (UST) and carbon inoculated had higher hardness than a sample which was neither ...


Influence Of Process Parameters On Mechanical Properties Of Friction Stir Welded Aa 6061-T6 Alloy And Mg Az31b Alloy, S. Ugender, A. Kumar Sep 2020

Influence Of Process Parameters On Mechanical Properties Of Friction Stir Welded Aa 6061-T6 Alloy And Mg Az31b Alloy, S. Ugender, A. Kumar

International Journal of Applied Research in Mechanical Engineering

The present study investigates the influence of tool pin profiles on microstructure and mechanical properties of friction stir welded AA 6061-T6 Alloy was studied. An attempt is made here to review the fundamental principle of this process its tensile strength and examination of its metallurgical consequences. An improved milling machine is fabricated for performing friction stir welding and its effectiveness in joining Al 6061-T6 Alloy plates is demonstrated in the current work. The FSW Process has proved to be very efficient and has immense potential for future application. Present investigation is to find out the optimum mechanical properties of friction ...


Fine Grained Dual Phase Steel By Thermo Mechanical Processing, Neeraj Agarwal, G.P. Chaudhari Sep 2020

Fine Grained Dual Phase Steel By Thermo Mechanical Processing, Neeraj Agarwal, G.P. Chaudhari

International Journal of Applied Research in Mechanical Engineering

The effect of thermo mechanical processing (TMP) on the mechanical properties of HSLA steel was investigated. TMP was conducted using a laboratory open die forging machine.Multiaxial forging (MAF) and intercritical annealing methods were used. TMP is designed to obtain ultrafine grained (UFG) steels. MAF is performed on prismatic shaped samples up to nine strain forging steps to produce ultra-fine grained (UFG) ferrite-pearlite steel with higher strength as compare to as received steel.Fine grained (FG) ferrite-martensite dual phases (DP) steel was fabricated by using combined effect of warm MAF and intercritical annealing. The tensile strength of FG-DP steels was ...


Friction Stir Surfacing Of Cold Sprayed Bainitic Steel, P. Venkateswaran, Anant Kumar Mishra Sep 2020

Friction Stir Surfacing Of Cold Sprayed Bainitic Steel, P. Venkateswaran, Anant Kumar Mishra

International Journal of Applied Research in Mechanical Engineering

A superficial composite layer was produced by friction stir surfacing (FSS) on high strength bainitic steel, cold sprayed with the Cu-Y2O3-ZrO2 and Zn-Y2O3-ZrO2 metal-oxide powders. The FSS resulted consolidation of the elemental powders in the cold sprayed (CS) layer with some melting of Zn and Cu. The formation of a continuous, adherent layer on the steel surface facilitates closing of large pores at the coating-substrate interface. The consolidated layer on the steel surface showed comminution of the coarse oxide particles and concomitant reduction in the average particle size. The FSS resulted in a composite layer consisting of the hard martensite ...


Hot Corrosion Behaviour Of Nickel Based Superalloys, K. Srinivasa Vadayar, S. Devaki Rani Sep 2020

Hot Corrosion Behaviour Of Nickel Based Superalloys, K. Srinivasa Vadayar, S. Devaki Rani

International Journal of Applied Research in Mechanical Engineering

High temperature corrosion of coated and uncoated IN738LC and uncoated CM247LC nickel based super alloys in chloride and vanadium environment were carried out. To create corrosive environment (i.e. chloride and vanadium environment) salts of required proportions of Na2SO4, NaCl and V2O5 were applied on both sides of samples and loaded into the furnace at 700°C and 900°C. The weight changes were noted and SEM analysis was done to determine the surface morphology of hot corroded samples. Electron Dispersive Spectroscopy (EDS) was used to determine different elements present in corroded samples of CM247LC and IN738LC in chloride and ...


Usage Of Tumbler Gear Mechanism In Four Wheel Steering, T. Saran Raj Sep 2020

Usage Of Tumbler Gear Mechanism In Four Wheel Steering, T. Saran Raj

International Journal of Applied Research in Mechanical Engineering

Maneuverability is been one of the key things which people look for in their automobiles. This lead to the implementation of “Four wheel Steering “in vehicles. Four wheel steering is a system that allows the rear wheels to turn, rather than just following the front wheel. It is a system with two phases, a negative phase for slow speeds and a positive phase for the high speeds. Turning the rear wheels in the opposite direction to the front is the negative phases, which enhances faster maneuvering and a much tighter turning radius. Turning the rear wheels in the same direction ...


Surface Roughness Analysis In Drilling Of Gfrp Composites By Tungsten Carbide Tool, B. Ramesh Sep 2020

Surface Roughness Analysis In Drilling Of Gfrp Composites By Tungsten Carbide Tool, B. Ramesh

International Journal of Applied Research in Mechanical Engineering

Nonlaminated composites having superior mechanical properties than laminated composites is widely used in ballistic applications. Since literature on the machinability of nonlaminated composites is scarce, an investigation was carried out to study the hole quality in drilling thick nonlaminated Glass Fiber Reinforced Plastic (GFRP) composite rods using coated tungsten carbide twist drill. The GFRP composite rods were made by pultrusion method with high fiber weight fraction. The surface roughness of the drilled holes was measured using surface roughness tester. Taguchi’s orthogonal array and analysis of variance (ANOVA) were employed to study the influence of process parameters such as feed ...


Finite Element Modelling And Analysis Of Workpiece-Fixture System, N. M. Kumbhar, G. S. Patil, Sushas S. Mohite, M. A. Sutar Sep 2020

Finite Element Modelling And Analysis Of Workpiece-Fixture System, N. M. Kumbhar, G. S. Patil, Sushas S. Mohite, M. A. Sutar

International Journal of Applied Research in Mechanical Engineering

The fixture design and analysis lead-time is always a major influencing factor for the bottleneck between product design and manufacturing. With advent analysis and simulation tools, there is a lot of potential to expand the scope of optimization of fixture elements to achieve the objectives such as ‘maximizing rigidity’ and ‘minimizing weight’ of a fixture assembly. There are many sources which affect the rigidity of fixture assembly. The rigidity of fixture assembly mainly depends upon various factors such as material properties, geometry of individual components, stability against thermal distortions, clearances or plays on fixture elements (to facilitate loading and unloading ...


Musculoskeletal Disorder Among Workers In Small Scale Forging Industry, Jaspreet Singh, Gautam Kocher, Harvinder Lal Sep 2020

Musculoskeletal Disorder Among Workers In Small Scale Forging Industry, Jaspreet Singh, Gautam Kocher, Harvinder Lal

International Journal of Applied Research in Mechanical Engineering

Musculoskeletal disorders (MSDs) are common health problem throughout the world and a major cause of disability in the workplace. This study was conducted among workers of a small scale forging Industries. The small scale forging units involve various kinds of high repetitive processes like Blanking, cutting, shearing, furnace loading, hammering, punching and trimming etc. the workers performing these type of activities are suffering from various MSDs. In this study I had surveyed 10 small scales forging industries and randomly selected 102 workers among these industries. The most common ergonomics problems were found in industry like wrong working positions of the ...


Design And Analysis Of Rotation Rate Sensor - Modeling Of Vibratory Mems Gyroscope, Priya.P. Shreshtha, Sushas S. Mohite Sep 2020

Design And Analysis Of Rotation Rate Sensor - Modeling Of Vibratory Mems Gyroscope, Priya.P. Shreshtha, Sushas S. Mohite

International Journal of Applied Research in Mechanical Engineering

The present work provides a detailed account of design and analysis for a typical comb-driven capacitively sensed microgyroscope. The general approach pursured in this paper is to show the possibility of achieving wide-bandwidth frequency responses in drive mode of vibratory gyroscope. Towards this goal one major design concept were discussed.


Experimental Study Of Turbulent Lpg Turbulent Inverse Diffusion Flame In Coaxial Burner, S. Sreenatha Reddy, K.L.N Murthy Sep 2020

Experimental Study Of Turbulent Lpg Turbulent Inverse Diffusion Flame In Coaxial Burner, S. Sreenatha Reddy, K.L.N Murthy

International Journal of Applied Research in Mechanical Engineering

The present experimental study investigates the turbulent LPG Inverse Diffusion Flame (IDF) stabilized in a coaxial burner in terms of flame appearance, visible flame length, centerline temperature distribution and oxygen concentration and NOX emission characteristics. The effect of air-fuel jet velocities on visible flame length is interpreted using global strain rate and a new devised parameter called Modified Momentum Ratio. The centerline temperature exhibits a steeper increase in the lower premixed zone of the IDF due to the enhanced premixing. Subsequently it declines gradually in the upper luminous portion owing to soot radiation and heat losses to the ambient. Further ...


Experimental Studies On Mechanical Properties Of Eglass Short Fibres & Fly Ash Reinforced Al 7075 Hybrid Metal Matrix Composites, Prabhakar Kammer, H.K. Shivanand, Santhosh Kumar.S Sep 2020

Experimental Studies On Mechanical Properties Of Eglass Short Fibres & Fly Ash Reinforced Al 7075 Hybrid Metal Matrix Composites, Prabhakar Kammer, H.K. Shivanand, Santhosh Kumar.S

International Journal of Applied Research in Mechanical Engineering

Conventional monolithic materials have limitations in achieving good combination of strength, stiffness, toughness and density. To overcome these shortcomings and to meet the ever increasing demand of modern day technology, composites are most promising materials of recent interest. Metal matrix composites (mmcs) possess significantly improved properties including high specific strength, specific modulus, damping capacity and good wear resistance compared to unreinforced alloys. Among the mmc’s aluminum composites are predominant in use due to their low weight and high strength. The key features of mmc’s are specific strength and stiffness, excellent wear resistance, high electrical and thermal conductivity. The ...