In tribological research, pinondisk tribometers can be conveniently used for characterization of friction of differ ent sliding pairs such as dry clutch facings 1, 2. Pdf modeling and simulation of wear in a pin on disc tribometer. A pin ondisk tribometer with in situ optical profilometry was constructed. 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. 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. Fea modeling of a tribometera s pin and disk interaction. Basalts2 is a research instrument for a highresolution view in local and temporal dimensions of tribomechanics. All of the holders are made of nonconductive materials to minimize noise. Chapter 6 wear testing measurement wear is a process of removal of material from one or both of two solid surfaces in solid state contact.
A pinondisc machine was used to simulate the sliding part of a gear contact in this study. 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. Easily changeable holders allow users to quickly change the nature of tribological contact to something that is relevant to their application. A wide range of factory installed and field upgradable options make. A pin on disc machine was used to simulate the sliding part of a gear contact in this study. So, the basic problem is that at anything other than very small track diameters, all the sliding effectively takes place on.
It is important to have comparable data of analyses obtained during years, with variable humidity and temperature andor in the presence of. A flat, pin or ball tip is loaded onto a test sample with a precise weight and at a specific position from the center of rotation. 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. Experimental objective indian institute of technology madras. 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. The test samples can be immersed in a lubricantfluid container and tests carried out under defined conditions. High temperature pin on disc tribometer magnum engineers. Pin on disk testing standards in research of materials, coatings and lubricants standardized tests are used to improve the reproducibility and for simplicity. More than 20 distinct operating conditions were investigated using spherical 6. Wear testing of pin on disc tribometer test procedure steps to be followed in order to conduct the experiment are. A pinondisc study of the tribology characteristics. Tribometer intro the nanovea tribometer table top 60 x 39 x 62 cm offers precise and repeatable wear and friction testing using pin on disk and linear modes.
Easily restore headlight with baking soda and vinegar a howto video duration. With the advent of new applications and technologies like automotive, advanced. As the wear is a surface removal phenomenon and occurs mostly at outer surfaces, it is more appropriate and economical to make surface modification of existing alloys than using the wear resistant alloys. 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. Pin on disc tribometer the tests were performed in a pin on disc tribometer with a horizontal rotating disc, using a dead weight to provide a desired nominal contact pressure on the pin. Easy to change modules allows it to run practically any friction test, wear test. During the test coefficient of friction cof, friction force, wear rate, wear volume, temperature and several other tribology parameters are measured.
Retrofitted assembly of this pinondisc tribometer onto an existing cnc machining center implementation of hardware and software for realtime force data acquisition a standardized template usable by other investigators for retrofitting existing cnc. The tribometer is capable of loads up to 200 mn, 25 revolutions per minute and angular positioning resolution of 50 rad. The length of the track can be adjusted prior to starting the measurement. Rotary pinball on disk tribometer ducom instruments. A pinondisc tribometer study of disc brake contact pairs. A pin on disc tribometer consists of a stationary pin that is normally loaded against a rotating disc. A pinondisk experimental study on a green particulatefluid. Pin on disc tribometers engineering university of southampton. Pinondisk tribometer astm g 99, din 50324 this continuous rotating pinflatballondisk fig 1 tribometer is one of the most common tribometers to measure the friction coefficient of the tribopair insitu during sliding. Benefit from many testing possibilities based on a range of solutions including a pinondisk system, a solution for nanotribology and a hightemperature tribometer. 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. The ducom pinball on disk tribometer is a test instrument designed for accurate and repeatable tribological characterization of bulk materials, coatings and lubricants.
The test machine causes either the disk specimen or the pin specimen to revolve about the disk center. Macro pod pin all on disk tribometer introduction 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. Before each experiment, the disk and pin surfaces were cleaned with acetone. Flow chart about configuring rotary pin on disk tribometer, ball on disk tribometer etc. Oct 22, 2012 easily restore headlight with baking soda and vinegar a howto video duration. For these tests, the tip of the pin was a nonrotating half sphere with a radius of 5 mm. How to evaluate solid lubricant films using a pinondisk tribometer. The results from the model are in good agreement with experimental results. The pin on disk wear testing machine presses stationary pin or ball against the rotating disk. Determine the weight of the specimen very accurately using highly accurate weighing balance having least count of 0.
The pin on disc machine comprised a horizontal rotating disc and a calibrated deadweightloaded pin. Thoroughly clean specimen pin, remove burns form circumference using fine grade emery paper. Experimental results of the tribology of aluminum measured. An ultrananocrystallinediamond coated sphere was run on a 95 wt % au and 5 wt. As the sample starts rotating, the tip creates a rotational wear track. Run the motor at full speed and on the range meter. What are the advantages and disadvantages of a pinondisc.
One, a pin with a radiused tip, is positioned perpendicular to the other, usually a. Tribometer multi function with inline profiler rtec. Pinondisc tribological tests pod were carried out under dry conditions, using a mt60ni. Mar 15, 2018 the tribometer measures the contact resistance and friction between the pin ball and disk using an electrical, voltagedrop method. Abdullah3 1 department of physics, gs faculty, yanbu university college, yanbu al sinayiah 41912, kingdom of saudi arabia 2 department of physics, faculty of science and technology, al neelain university, khartoum 11111.
The tribometer is a conventional tribometer that was redesigned for particulate emission testing 17. Rely on the industry standard for friction, wear, and lubrication measurement. So, the basic problem is that at anything other than very small track diameters, all the sliding effectively takes place on the pin surface. Standard test method for wear testing with a pinondisk. The test machine causes either the disk specimen or. Friction results and in situ wear track images were. Pinondisk tribometer 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. 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. The pinondisc machine comprised a horizontal rotating disc and a calibrated deadweightloaded pin. With over installed bases worldwide over the last 35 years, anton paars pinondisk tribometer is the standard for measurement of friction, wear, and lubrication. This continuous rotating pinflatballondisk fig 1 tribometer is one of the most common tribometers to measure the friction coefficient of the. The linear tribometer can be equipped with a heating and cooling plate for testing under a wide variety of temperatures. Investigate wear resistance of aluminium 2024 alloy by using.
Guidance notes on test specimens phoenix tribology. Pinondisc tribometer the tests were performed in a pinondisc tribometer with a horizontal rotating disc, using a dead weight to provide a desired nominal contact pressure on the pin. 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. The mft is a versatile 5000 multifunctional mechanical property tester capable of simulating a vast number of tribology and wear tests on the same platform. Design of normal force control system for a pinondisk. Designed, at the core, with a high quality motor and a 20bit position encoder, the tribometer provides access to an unmatched range of rotational speeds from 0. Modeling and simulation of wear in a pin on disc tribometer. 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. Clean wear disc thoroughly with solvent and allow it to dry clamping of specimen pin. Design of normal force control system for a pinondisk tribometer. Most contact geometries can be reproduced including pin on plate, ball on plate and flat on plate others on request. The pin can have any shape to simulate a specific contact, but cylindrical tips are often used to simplify the contact geometry.
Application of pinondisc techniques for the study of. 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. The tribometer measures the contact resistance and friction between the pinball and disk using an electrical, voltagedrop method. Pinondisc study of tribological performance of standard and. For pm and rs combinations, both pm pins have lower friction coefficients with rs disc material than do rs pins with pm disc materials.
The coefficient of friction is determined by the ratio of the frictional force to the loading force on the pin. The pin on disk tribometer wear testing machine set up is. Pdf a very efficient, incremental implementation of archards wear model on the global scale for pin wear and disc wear in a pinondisc tribometer is. When you choose a tribometer from anton paar, you are choosing a world of options to build on in the future. Pressureinduced tribofilm formation with triboconditioning. The platform comes with lower x,y and and upper multiple z stages. A ball, rigidly held, is often used as the pin specimen.
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. Jan 01, 2016 this is a pin on disk tribometer that ive developed. In research of materials, coatings and lubricants standardized tests are used to improve the reproducibility and for simplicity. Most contact geometries can be reproduced including pinonplate, ballonplate and flatonplate others on request. 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. The ducom pin ball on disk tribometer is a test instrument designed for accurate and repeatable tribological characterization of bulk materials, coatings and lubricants. A pinondisk tribometer with in situ optical profilometry was constructed. Basalts2 is a research instrument for a highresolution view in local and temporal dimension of tribomechanics. The linear tribometer can be equipped with a heating and cooling plate for testing under a wide.
Pin on disk tribometer ball on disk tribometer rtec. The pinondisk wear tests were conducted on an amti orthopod machine watertown, ma. 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. An arc test back and forth can also be performed at a specific degree range. The test samples can be of varied shape such as cylindrical as long as there is a. Pdf modeling and simulation of wear in a pin on disc. The configuration of the pinondisc machine is shown in fig. Pinondisk wear test an overview sciencedirect topics. 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. Investigation of wear characteristics of aluminum disc with. The configuration of the pin on disc machine is shown in fig. The pin is mounted on a stiff lever, designed as a frictionless force transducer. A stationary pin mounted on a pin holder is brought into contact against a rotating disc at a specified.
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