Wear mechanisms experienced by an automotive grade al. Introduction to the pin on disk tribometer in pin on disk tribometry, a flat, a pin or a sphere is loaded onto the test sample with a precisely known weight. Figure 2 shows a schematic of the pin on disc wear test rig with the associated instrumentation. It was invented by the 18th century dutch scientist musschenbroek. Basalts2 is a research instrument for a highresolution view in local and temporal dimensions of tribomechanics. The end of pin, which is in contact with the disc, is provided with a radius.
We are a highly acclaimed company that manufacture and supply a wide range of pin on disc tribometer in bengaluru, karnataka, india. When you choose a tribometer from anton paar, you are choosing a world of options to build on in the future. The understanding of the wear, friction and lubrication behavior of materials, lubricants and coatings in a variety of test conditions has become increasingly important in the recent years. With over installed bases worldwide over the last 35 years, anton paars pinondisk tribometer is the standard for measurement of friction, wear, and lubrication. With the help of this device, films and composite systems can be tribologically examined and characterised. S pin which makes point contact, which is a very common combination. The ducom pinball on disk tribometer is a test instrument designed for accurate and repeatable tribological characterization of bulk materials, coatings and lubricants. Pdf modeling and simulation of wear in a pin on disc tribometer. Pinondisc tribometer the second pinondisc is a smaller faster version, which was used for early developments of electrostatic charge measurements in steelsteel and hybrid contacts, later projects explored carbon brakes with the latest work studying polymer brushes.
The test machine causes either the disk specimen or the pin specimen to revolve about the disk center. A tribotester is the general name given to a machine or device used to perform tests and simulations of wear, friction and lubrication which are the. Application of pinondisc techniques for the study of. The module measures friction during sliding using pinball on disk setup. Download pdf copy download brochure with over installed bases worldwide over the last 35 years, anton paars pin ondisk tribometer is the standard for measurement of friction, wear, and lubrication. Investigation of wear characteristics of aluminum disc. Visit our lab falex tribology testing and technical support. The nano tribometer ntr3 is developed to study surface interaction at very low contact pressures, particularly when there are soft materials of interest. In fact, let us see it this way, pin on disc tribometer may be used to model wear and lubricant behavior when the actual parts are having a linear relative velocity which is fairly constant like. Tribometer trbsee0000 is a pin on disc tribometer equipped with its own workstation computer, screen and electronic control, which is used for materials or coatings friction coefficient determination, depending on the time of contact speidiena, speed, temperature, moisture and lubrication conditions. Before each experiment, the disk and pin surfaces were cleaned with acetone.
The pinondisk setup comprises two highbandwidth servomotors for the control of the rotating disk and the normal loadrelated spindle drive, as well as a highprecision triaxial piezoelectric force sensor for. A very efficient, incremental implementation of archards wear model on the global scale for pin wear and disc wear in a pinondisc tribometer is presented. Pdf one of the main criteria for the establishment of the performance of a. Tribometer intro the nanovea tribometer table top 60 x 39 x 62 cm offers precise and repeatable wear and friction testing using pinondisk and linear modes. As well as the electrostatic probe, which was located 90 degrees away from the pindisc contact and 0. Tribometer trbsee0000 is a pinondisc tribometer equipped with its own workstation computer, screen and electronic control, which is used for materials or coatings friction coefficient determination, depending on the time of contact speidiena, speed, temperature, moisture and lubrication conditions. This paper includes the details of the design process, such as adaptations from existing tribometers, all required calculations, and descriptions of the machining and assembly. Basalts2 is a research instrument for a highresolution view in local and temporal dimension of tribomechanics. In fact, let us see it this way, pinondisc tribometer may be used to model wear and lubricant behavior when the actual parts are having a linear relative velocity which is fairly constant like. Simple pin on disc tribometer in the pin on disc test, a pin subjected to definite load is pressed onto a rotating disc and wear is determined as shown in fig. The tribometer will be used by the department for future student research projects.
Guidance notes on test specimens phoenix tribology. Pin on disk, pin on ring, pin on flat, ball on flat tests are all similar to each other with the differences in the geometry of a specific tribometer and the pin. The tribometer is capable of loads up to 200 mn, 25 revolutions per minute and angular positioning resolution of 50 rad. The hightemperatureballondisctribometer is used for the determination of friction and wear characteristics of thin films andor materials figure 1. Experimental determination of the friction coefficient is usually performed on pin ondisk tribometer type 3 7. Stribeck curve displays the evolution of the coefficient of friction as a function of load or velocity. While a disk tribometer 10 is illustrated, the present invention may also be practiced with other types of tribometers such as a pin on disk tribometer, an oscillating tribometer, a four ball tribometer, a ballon disk type tribometer, and others. The microforce, with its submicron resolution, is excellent for microscale friction measurement. Clean wear disc thoroughly with solvent and allow it to dry clamping of specimen pin. Mar 15, 2018 the tribometer measures the contact resistance and friction between the pin ball and disk using an electrical, voltagedrop method. A pinondisk tribometer with in situ optical profilometry was constructed. A pinondisk experimental study on a green particulatefluid. More realistic simulation of the gear teeth friction.
A pin on disc tribometer consists of a stationary pin that is normally loaded against a rotating disc. Unlimited viewing of the articlechapter pdf and any associated supplements and figures. Ntr 3 integrates an atomic force microscopes resolution and the ruggedness and stability of a dual beam cantilever transducer, increasing the proven pinondisk tribometer testing principle to new nanotribology levels. The test samples can be of varied shape such as cylindrical as long as there is a. Design of normal force control system for a pinondisk. Standard test method for wear testing with a pinondisk.
With over installed bases worldwide over the last 35 years, anton paars pin ondisk tribometer is the standard for measurement of friction, wear, and lubrication. While a disk tribometer 10 is illustrated, the present invention may also be practiced with other types of tribometers such as a pin on disk tribometer, an oscillating tribometer, a four ball tribometer, a. These results in a point contact between pin and disk at the. Figure 2 shows a schematic of the pin ondisc wear test rig with the associated instrumentation. This paper presents the design of a computercontrolled pinondisk tribometer for friction characterization of various sliding pairs. The ducom microforce is an innovative new platform can be used for multiscale testing. Pin on disc tribometers engineering university of southampton. Pdf on the utilization of pinondisc simulative tests for the.
So, the basic problem is that at anything other than very small track diameters, all the sliding effectively takes place on the pin surface. The pin is mounted on a stiff lever, designed as a frictionless force transducer. Tribometer multi function with inline profiler rtec. The elastic arm ensures a nearly fixed contact point and a stable position in the friction track formed by the pin on the sample. In tribometry, a sphere, a pin or flat surface is loaded onto the test sample with a precisely known force. The coefficient of friction is determined by the ratio of the frictional force to the loading force on the pin. Most contact geometries can be reproduced including pinonplate, ballonplate and flatonplate others on request. The tribometer measures the contact resistance and friction between the pinball and disk using an electrical, voltagedrop method. Download pdf copy download brochure with over installed bases worldwide over the last 35 years, anton paars pinondisk tribometer is the. The indenter a pin or a ball is mounted on a stiff lever, designed as a frictionless force transducer. Double the track circumference and the point on the pin sees 200 mm sliding per revolution whereas the point on the disc still only sees 10 mm. Pin on disc tribometer the second pin on disc is a smaller faster version, which was used for early developments of electrostatic charge measurements in steelsteel and hybrid contacts, later projects explored carbon brakes with the latest work studying polymer brushes. The pinondisk tribometer is a compact, tabletop instrument, which can be installed on all. What are the advantages and disadvantages of a pinondisc.
Mar 07, 2016 the goal of this graduation project was to design and build a pin on disk tribometer. A pin ondisc machine was used to simulate the sliding part of a gear contact in this study. An ultrananocrystallinediamond coated sphere was run on a 95 wt % au and 5 wt. In this paper we have focused or taken aluminum al disc and other mating part is of high speed steel h. A wide range of factory installed and field upgradable options make. In view of these drawbacks, scratch tests were preformed using a pin. The length of the track can be adjusted prior to starting the measurement.
Pinondisc tribological tests pod were carried out under dry conditions, using a mt60ni. The ducom pin ball on disk tribometer is a test instrument designed for accurate and repeatable tribological characterization of bulk materials, coatings and lubricants. As well as the electrostatic probe, which was located 90 degrees away from the pin disc contact and 0. Benefit from many testing possibilities based on a range of solutions including a pinondisk system, a solution for. A reversal of materials for the pin and disk was considered in an attempt to simplify the preparation of the components needed for the test. Microforce tribometer ducom instruments the tribology company. In research of materials, coatings and lubricants standardized tests are used to improve the reproducibility and for simplicity. For these tests, the tip of the pin was a nonrotating half sphere with a radius of 5.
The platform comes with lower x,y and and upper multiple z stages. The goal of this graduation project was to design and build a pinondisk tribometer. Jan 01, 2016 this is a pin on disk tribometer that ive developed. The pinball is mounted on a stiff lever, designed as a frictionless force transducer.
Pdf application of pinondisc techniques for the study of. With the advent of new applications and technologies like automotive, advanced. Most contact geometries can be reproduced including pin on plate, ball on plate and flat on plate others on request. The wear mechanisms experienced by a cast hypereutectic alsicu alloy were studied using a pin on disc tribometer, under lubricated sliding conditions at. All of the holders are made of nonconductive materials to minimize noise. A ball, rigidly held, is often used as the pin specimen. Pinondisc wear principle a flat or a sphere shaped indenter is loaded on the test sample with a precisely known force. Thoroughly clean specimen pin, remove burns form circumference using fine grade emery paper. Tribological effects of vegetable oil as alternative.
Pinondisk wear test an overview sciencedirect topics. Download pdf copy download brochure with over installed bases worldwide over the last 35 years, anton paars pinondisk tribometer is the standard for measurement of friction, wear, and lubrication. Figure 2 shows a schematic of the pinondisc wear test rig with the associated instrumentation. More than 20 distinct operating conditions were investigated using spherical 6. Pdf this article proposes a new design for pinondisc machines and introduces a research methodology that aims at. Simple pinondisc tribometer in the pinondisc test, a pin subjected to definite load is pressed onto a rotating disc and wear is determined as shown in fig.
A tribometer is an instrument for characterizing friction, wear, scratch resistance and influences of certain lubrication and environmental conditions to the tribological system behavior. A detailed study of the principles of friction, wear and lubrication i. Tribological evalua on can be conducted under variety of test condi ons and wide range of test parameters by the selec on of suitable op ons. A tribometer is an instrument that measures tribological quantities, such as coefficient of friction, friction force, and wear volume, between two surfaces in contact. The pin ondisc machine comprised a horizontal rotating disc and a calibrated deadweightloaded pin.
The module measures friction during sliding using pin ball on disk setup. This continuous rotating pinflatballondisk fig 1 tribometer is one of the most common tribometers to measure the friction coefficient of the. Easy to change modules allows it to run practically any friction test, wear test. High temperature pin on disc tribometer magnum engineers. The linear tribometer can be equipped with a heating and cooling plate for testing under a wide variety of temperatures. Pdf modeling and simulation of wear in a pin on disc. The configuration of the pin ondisc machine is shown in fig. Modeling and simulation of wear in a pin on disc tribometer. Easily changeable holders allow users to quickly change the nature of tribological contact to something that is relevant to their application. International journal for research in applied science. The pin can have any shape to simulate a specific contact, but cylindrical tips are often used to simplify the contact geometry. Tribological effects of vegetable oil as alternative lubricant.
Fiftyfour percent of these were automotive lubricants engine oil and transmission. Rely on the industry standard for friction, wear, and lubrication measurement. The results from the model are in good agreement with experimental results. Benefit from many testing possibilities based on a range of solutions including a pin on disk system, a solution for nanotribology and a hightemperature tribometer.
Sehingga alat ini dapat digunakan untuk uji keausan atau bisa digunakan untuk mengetahui uji performa suatu pelumas. The patented microforce head is used to control test load with high accuracy and measure friction force between between the range of 10 mn to 10 n. Rotary pinball on disk tribometer ducom instruments. Flow chart about configuring rotary pin on disk tribometer, ball on disk tribometer etc. A stationary pin mounted on a pin holder is brought into contact against a rotating disc at a specified speed as the pin is sliding, resulting. Microforce tribometer ducom instruments the tribology. Friction results and in situ wear track images were. The apparatus is generally used to determine the wear resistance of technical ceramics and involves producing wear by friction in a test specimen with a spherical abrader, the present study was conducted with a csem pin. One, a pin with a radiused tip, is positioned perpendicular to the other, usually a. There are various types of tribometer four ball, pin on disc, block on ring, bouncing ball and twin disc. Penelitian ini bertujuan untuk merancang dan membangun alat uji tribometer pin on disc, yang mudah dibawa kemanamana, bersifat portabel, mudah pengoperasian, dan dengan bahan pembuatan yang terjangkau. Determine the weight of the specimen very accurately using highly accurate weighing balance having least count of 0. Experimental objective indian institute of technology madras.
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