In the above programmable output part of forging,estimated blow energy of 3 times straightening needs to be 16. Fatigue behavior and life predictions of forged steel and powder. Crankshaft and connecting rod specifications all measurements are given in inches. Material choices 4 last month, we looked further into the use of titanium for con rods and this month we look briefly into the use of steel, which remains in many cases the material of choice for con rods. We have 3 kawasaki fx691v manuals available for free pdf download. In this study three materials al360, beryllium alloy 25 and magnesium alloy have considered for analysis.
Gopal et al design and analysis of assembly of piston, connecting rod and crank shaft 237 international journal of current engineering and technology, vol. For manufacturing of connecting rods the various material are available, mostly cast iron was used in automobile sector. After perform analysis on steel material connecting rod and s. Design and analysis of connecting rod for high speed. The load pattern illustrated in the figure above and the design criteria for the connecting rod lead to the test method used in this study. Youngs modulus e 210 gpa, yield strength s y 210 mpa, poissons ratio. Selection of material, shape, and manufacturing process. After analysis a comparison is made between existing steel connecting rod viz. Fatigue analysis of connecting rod using finite element. Gp bearings have a higher maximum work temperature.
Table iii material properties of connecting rod 11 sr. Aluminum rods can be manufactured to the same strength level as a steel rod due to large amount of material that makes up the rod but still be 40% lighter than a steel connecting rod. Gp material has good antifriction properties due to the combined action of the proprietary overlay components. Advances in high strength pm materials help powder forged. Materials edit aluminium rod with modular head and bushing in the foot left, aluminium oil drip rod with pats centre, steel rod right. Pdf design of connecting rod of internal combustion engine.
Proengineer, forces are calculated, analysis is done on the connecting rod using materials aluminum 6061, aluminum 7075, aluminum 2014carbon fiber 280 gsm bidirectional, and analysis is also done for the assembly of piston, connecting rod and crankshaft. Connecting rods forged 4340 steel connecting rod material. This material, when heat treated correctly, exhibits excellent wear properties and is very impact resistant. A connecting rod, also called a con rod, is the part of a piston engine which connects the piston. Design of connecting rod for weight reduction using c70s6 material deepak g. During its operation connecting rodundergoes various types of loads. They developed the designed model of connecting rod using modelling software.
The function of the connecting rod is to convert the reciprocating motion of the piston into the rotary motion of the crankshaft. Analysis of connecting rod was carried out using anysy 14. R college of engineering, andhra pradesh, india1 professor, department of mechanical engineering, g. Here stainless steel, aluminum alloy and high strength carbon fiber 280gsm bidirectional are used to analyze the connecting rod.
Connecting rod made using particulate reinforced aluminum. Materials with higher fatigue limits such as fractim and vanard 925 can be used for connecting rods subjected to higher loads. Follow along as we explore most common rad failures and what to look for when inspecting broken parts. Tension and compression analysis in reciprocating engine. Steel materials are used to design the connecting rod. Show full abstract connecting rod is replaced by aluminum based composite material reinforced with silicon carbide and fly ash. The connecting rod is the intermediate member between the piston and the crankshaft. This project aims at designing a connecting rod with standard dimensions of a stock one in creo 3.
Advances in high strength pm materials help powder forged connecting rods gain market share the next generation of petrol and diesel internal combustion engines require connecting rods with significant increases in performance, not only in terms of higher strength but also with less variation in their mechanical properties and weight distribution. Each rod is shot peened and finish honed to exact tolerances. Current automotive ic engines connecting rods are made of steel. Connecting rods t651 billet aluminum connecting rod material. Fatigue analysis of connecting rod using finite element analysis 789 the stress at any point on the connecting rod at this axial load can be interpolated from the axial stress analysis results. To reduce the obliquity of the rod with the cylinder axis, its length should be kept as large as possible. The fact that forgings produce blowhole free and better rods gives them an advantage. Jun 20, 2015 introduction what is a connecting rod. Material selection for manufacture of connecting rods.
Pdf on feb 28, 2014, venkatesh seenivasan and others published design and analysis of connecting rod with modified materials and fea. Parting edge where cap and the rod meet is fractured. This paper presents the design connecting rod of internal combustion engine using the topology optimization. But its have more density, that leads to increasing weight of connecting rod. This thesis has been focused on the study of the connecting rod manufacturing process. Gp bearing applications gp is a superior material for highly loaded connecting rod bearings.
Us5878491a process for the manufacture of a forged. Design of connecting rod for weight reduction using c70s6. The objective of the present work is to design and analyses of connecting rod made of aluminium alloy. Auto material connecting rod free download as powerpoint presentation. Engine connecting rod an overview sciencedirect topics. A connecting rod is a shaft which connects a piston to a crank or crankshaft in a reciprocating engine. Aluminium alloys also can be used for these as an alternative. Introduction connecting rods are highly dynamically loaded components used for power transmission in combustion engines. To ensure proper wear of the pushrod tip and adjusting screw we offer pushrod tips in three different materials. Fractured uneven surface helps locate rod end and cap, eliminating the need for locating dowel automatic bolt insertion and fastening equipment ensures cap and rod stay together, eliminating possibility of mismatched cap and rod during material handling.
Connecting rod definition of connecting rod by merriamwebster. Analysis of connecting rod using composite material. Year engine idvin engine displacement liters crankshaft connecting rod main brg. And it also describes the modeling and analysis of connecting rod.
Design and analysis of piston using composite material molla shehanaz1, dr. The function of the connecting rod is to transmit the. Steel for highstrength connecting rod boron steel for cold forging sbr, nhb steel for. The material used in the connecting rod should be chosen wisely. Al360 of connecting rod was replaced with aluminium fly ash silicon composite. Material design for advanced connecting rod for mass. A connecting rod is one of the most mechanically stressed components in internal combustion engines. In this in order to have a connecting rod equally strong in buckling about both the axis, the buckling loads must be equal. Auto material connecting rod bearing mechanical piston.
The ductile iron connecting rod experienced an average life of 1,605,902 cycles at a 50% survival rate or 635,811 cycles at a 90% survival rate. Comparative study of connecting rod materials using. Mar 16, 2016 a free body diagram of connecting rod. The sn chart below compares data from fatigue tests on the corus branded and industry standard steel grades. The analysis of the scania line together with a benchmark among different leading companies on the connecting rod manufacturing has been undertaken. Forces due to the cylinder pressure as well as the mass of the connecting rod and the piston assembly are illustrated in figure 2. This forging part is a single part weighting 540 grams,the distance from the centerline of the connecting rod to the centerline is 129. Design and analysis of connecting rod using forged steel.
Find connecting rods with forged 4340 steel connecting rod material and 2. A connecting rod rough forging, free of lateral flash and including at least one bore initiator on the big end and on the small end, is manufactured by forging. The fact that forgings produce blowholefree and better rods gives them an. The function of the connecting rod is to transmit the thrust of the piston to the crankshaft and translate the transverse motion to rotational motion. Kawasaki fx691v manuals manuals and user guides for kawasaki fx691v. Crowers high performance camshafts, crankshafts, connecting rods, roller lifters, rocker arms, valve train components and large variety of aftermarket engine parts for international and domestic automobiles, diesels, boats, tractors, motorcycles, and trucks. Apr 16, 2014 in depth behind the scenes look at hot rods u. The connecting rods are generally made by forged steel or duralumin or carbon. The connecting rod subjected to tensile load at crank end, while using factor of safety 3 as recommended by shenoy 2004. Unitech performance rods start life as brand new chromoly forgings.
Design and analysis of piston using composite material. Pdf comparision of two different materials for connecting rod. Crackable connecting rod material selection by using topsis. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. The load of the connecting rod optimized is comprised of the tensile load of 26. A free body diagram of piston forces in cylinder engine. It is no surprise that a failure in a connecting rod can be one of the most costly and damaging failures in an engine. Topology optimization, connecting rod, finite element analysis, minimum weight, linear static method.
The optimization of connecting rod had already started as early year 1983 by webster and. The fatigue limit is indicated by the horizontal part of the curve. Ic engine major parts and its function, materials,images. Abstract this paper presents a study of redesigning of connecting rod for its weight reductionusing c70s6 material. Weight can be reduced and strength can be achieved by changing the material of the current connecting rod to hybrid composites. The objectives of this paper are to develop structural modeling, finite element analyze and the optimization of the connecting rod for robust.
Fem analysis of connecting rod of different materials using ansys. Connecting rods 101 design,material,modifications,and. Connecting rod of a composite material formed from reinforcement fibers wound in the form of an endless loop with constant crosssectional shape and the fiber bundle enclosed by a jacket of aluminum. A process for manufacturing a forged connecting rod of the type including a big end, a shank and a small end. Sarkate et al, 20 carried out an analysis to find out an optimum material for connecting rod. Comparision of two different materials for connecting rod. A connecting rod basically connects the piston to the crankshaft whilst transmitting power of the combustion from the combustion chamber to rotate the crank. Selection of material, shape, and manufacturing process for a. The maximum stress of the connecting rod monitored and make sure it is not over the allowable stress. Connecting rod free download as powerpoint presentation. R college of engineering, andhra pradesh, india2 abstract. Connecting rod definition is a rod that transmits motion between a reciprocating part of a machine such as a piston and a rotating part such as a crankshaft. Being one of the most integral parts in an engines design, the connecting rod must be able to withstand tremendous loads and transmit a great deal of power. In this project the material carbon steel of connecting rod replaced with forged steel.
Sep 30, 2017 the material changes depending on the application. First of all, to find the stress on the connecting rod, we use the formula. Selection of material, shape and manufacturing process for a connecting rod abstract this activity centers on the courses of strength of materials and production design offered at a sophomore level mechanical engineering curriculum. Thirdly, a didactic training material in process planning has been successfully developed and tested for future educative purposes in scania. Comparision of manufacturing methods and analysis of. These blow energy can forge high deformation so that the resultant force is very low. Unitech performance rods are clearanced by design and can easily be installed in engines running strokes up to 82mm. The connecting rod provides the mechanical linkage between piston and crankshaft and must exhibit properties of high strength, low inertial mass, and uniformity of mass with the other connecting rods attached to the crankshaft. Connecting rod manufacture is a high volume, price sensitive application with strict performance, design and durability requirements. The materials are changed so that the weight of the connecting rod is less when aluminum alloys and carbon fiber are used by. Selection of material the connecting rods are most usually made of steel for lightness and the ability to absorb high impact at the expense of durability titanium for a combination of lightness with strength, at higher cost for high performance engines, or of cast iron for applications such as motor scooters. Powdered metal pressed together and then put into an oven where it is sintered that means granuals are melted together and forms the rod. The results obtain by fea for both aluminum 7068 alloy and. Finally obtaining the new optimized connecting rod which is comparatively much stiffer than the former 2.
Material aluminium 2024t361 is selected for the study. Design,and,analysis,of, connecting,rod,for,high,speed,application,in,i. Design and buckling analysis of two wheeler connecting rod. Modern manufacturing process of forged connecting rod. Summary of powder metal connecting rod manufacturing process28. To improve the efficiency of the engine there is a need to study about the piston. These are hardened steel parallel spindles fitted through the piston bosses and the small end bushes or eyes to allow the connecting rods to swivel. If you are interested in our products please contact me feel free.
Nov 25, 2009 connecting rod material are used drop forged heat treated steel to boost up strength as the factor of safety for the design of connecting rod is very high as it has to with stand impact loading. Analysis and optimization of connecting rod used in. A connecting rod, also called a con rod, is the part of a piston engine which connects the piston to the crankshaft. These ideas have been mainly related to machining sequence, machine tool and new technologies for machining. Connecting rod of a composite material and method for manufacturing the same. Pdf design and analysis of connecting rod with modified.
This 8620 material is used in most pushrod tip applications and has a surface hardness of approximately 62 rockwell c. Pdf selection of connecting rod for good performance of engine is very difficult. The average life of a malleable iron connecting rod was 764,962 cycles at a 50% survival rate or 347,734 cycles at a 90% survival rate. Summary of powder metal connecting rod manufacturing process 28. Learn about materials used in its manufacturing and its characteristics and its functons. Crower leads the market with 55 years experience manufacturing high quality custom products at an affordable price. Design and analysis of assembly of piston, connecting rod and. There are far more manufacturers of con rods who offer steel rods than any other material. Crackable connecting rod material selection by using.
Introduction connecting rods are widely used in variety of automobile engines. A connecting rod can rotate at both ends, so that the angle between the connecting rod and the piston can change as the rod moves up and down and rotates around the crankshaft. In this project the material forged steel of connecting rod replaced with aluminium alloy. A connecting rod is subjected to a cyclic load during its service.
The connecting rod is required to transmit the compressive and tensile forces from the piston, and rotate at both ends. Reducing the weight of the rods reduces the mass of the rotating and reciprocating parts and allows the engine to rev faster and rev higher safely. Together with the crank, it forms a simple mechanism that converts reciprocating motion into rotating motion it is the main function of a connecting rod. Keywords crackable connecting rod, material selection, topsis method, ranking 1.