Test procedure table 4 shows the pinondisc test matrix. Pin on disk machine tests astm methods052010 standard test method for wear testing with a pinondisk apparatus this test method covers a laboratory procedure for determining the wear of materials during sliding using a pinondisk apparatus. Test procedure steps to be followed in order to conduct the experiment are. An experimental investigation on wear test parameters of metal matrix. Laboratory testing ducom instruments the tribology company. Finite element analysis of pinondisc tribology test. A is the material of the disc, and b is the material of the pin. Run the motor at full speed and on the range meter. Pin on disc friction and wear tests phoenix tribology ltd. A pin on disc is used to perform the wear experiment. After a breakin period, the electrochemical pin on disk produced constant wear rates independent of path length for both astm a 514 steel and 304 stainless steel. Effects of the pinondisc parameters on the wear of alumina. Din iso 71481 testing the tribological behavior of material for sliding bearings part 1. Pin on disc test this test covers a laboratory procedure for determining the wear of materials during sliding using pin disc apparatus.
Wear test was conducted as per procedure reported elsewhere21. The wear was measured by weighing discs and pads before and after the test. Hardly a meeting has gone by without budinskis presentation of yet another careful study of a wear test, together with his. Pin on disk wear test method covers a laboratory procedure for determining the wear of materials during sliding using a pin traveling on a rotating disk. This test method covers a laboratory procedure for determining the wear of materials during sliding using a pin on disk apparatus. Pin on disc wear principle a flat or a sphere shaped indenter is loaded on the test sample with a precisely known force. Therefore, we are going to design a circular pin disc wear tester. The electrochemical and wear parameters of potential, current, charge, sliding speed, frictional force, and normal acceleration can be continuously displayed and recorded. For the wear coefficient, at low and high speeds, rs pins. Dry sliding wear test conducted on pin ondisk testing. For the pin on disk wear test, dual specimens are needed. However, in the last decades machining processes have been. Realistic approach to pinondisc wear testing measurement. Pdf this project was carried out the design and fabricate a circular pin disc wear tester with.
In this test the flat end of cylindrical specimen 8 mm in diameter and 12 mm length was fixed in chuck jaws to prevent specimens from rotation during the test. As well as the electrostatic probe, which was located 90 degrees away from the pin disc contact and 0. An experimental investigation on wear test parameters of. Place the weights in the pan and observe the wear pattern on disc made by pin. Rotary pinball on disk tribometer ducom instruments. Investigate wear resistance of aluminium 2024 alloy by. Hightemperature hardness and wear resistance of stellite alloys.
Oct 04, 2017 wear test method apparatus pin on disc duration. The pin was held against the counter face of a rotating disc en31 steel disc with wear track diameter 60 mm. The wear tests have been carried out on a pin on disc machine, using pin as brake shoe lining material and discs as a35625sic. Specimen pin alignment we need to be careful when running a hard pin on a soft disc or plate. Successive wear track passes of the test pin should be spaced far enough apart so that the reference pin can be tested on unused abrasive in a path adjacent and parallel to that of the. Study of wear pattern behavior of aluminum and mild steel. A and b will be used in the remainder of this paper to identify different material combinations. Astm g 99 standard test method for wear testing on a pin on disk test apparatus. Pinondisc tester was used to study the characteristics of materials, lubricant and so on.
The rotating discs 500rpm were subjected to cyclical pressures of 0. The wear test for all specimens was conducted under the normal loads of 20n, 40n and a sliding velocity of 2 and 4 ms. Element performs pin on disk wear testing in reference to astm g99, astm g3 and astm f732 on our inhouse, custombuilt, 12station wear test frames. Pinondisc tribological tests pod were carried out under dry conditions, using a mt60ni. A new pinondisk wear testing method for simulating wear of. Dry sliding wear tests for different number of specimens was conducted by using a pinondisc machine. Full scale testing is often required if contact pressure and geometry are kept as variables. This test method covers a laboratory procedure for determining the wear and friction of materials, liquid and lubricants etc. Pin on disk test friction and wear typically wear rates and wear resistance. The coefficient of friction may also be determined. The machine should also be capable for ball on disk single lever system in 1.
Most pin on disc testers are computer controlled and store the measured friction versus time or distance plots for future reference. In this pin disc wear test er project, test setup was modeled by using elast oplatic finite e lement method fem for aluminum a lloy 6061 o brick and m ild steel with 20n force is applied. Pinondisk wear test method covers a laboratory procedure for determining the wear of materials during sliding using a pin traveling on a rotating disk. Since the action performed on all samples is identical, the wear rate can be used as a quantitative comparative value for wear resistance. Advances in tribological testing of artificial joint. With a ballended pin, alignment problems are removed but the test. The pin was loaded against the disc through a dead weight loading system. Each test was performed twice to ensure repeatability. It has been found that the hardness and wear resistance of stellite alloys behave differently at room temperature and at high temperatures wear tests were carried out in a pin on disc wear testing machine, the pin being manufactured from friction material usually used in light truck brake pads. During the experiment, the sliding between the pin and disc may result in wear on. Astm g99 standard test method for wear testing with a. One, a pin with a radiused tip, is positioned perpendicular to the other, usually a flat circular disk. With a ballended pin, alignment problems are removed but the test starts with high.
The wear resistance of each alloy is evaluated at both room temperature and elevated temperatures up to 450c using a pinondisc tribometer equipped with a heating device. Axial load was applied to the pins against the plane surface of the rotating disc. Guidance notes on test specimens phoenix tribology. These unique, high capacity machines allow for the testing of several material combinations at a time, on a single test. 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 wear track, alloy and composite specimens are cleaned thoroughly with acetone prior to test. This is a pin on disk tribometer that ive developed. The volume lost allows calculating the wear rate of the material.
The pin on disc is the most common test used to characterize the wear. Ranking resistance of plastic materials to sliding wear using a blockonring configuration. The indenter a pin or a ball is mounted on a stiff lever, designed as a frictionless force transducer. A ball, rigidly held, is often used as the pin specimen. Wear disc diameter 160mm en31 disc 5560 hrc and 8mm. Experimental objective indian institute of technology madras. One, a pin with a radiused tip, is positioned perpendicular to the other, usually a. Wear resistant coating evaluation by highload tribometer prepared by duanjie li, phd. Additionally, rheological tests were conducted to measure the viscosity of the canola oil and boric acid powder mixture as a function of particle size, and it was found that the viscosity increased with particle size over the size range tested. Therefore, we are going to design a circular pin disc wear test er.
After that the specimen is mounted on the pin holder of the tribometer ready for wear test. Testing of bearing materials, test procedure a, pin on disk. 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 wide range of factory installed and field upgradable options make. Astm g99 standard test method for wear testing with a pin on disk apparatus proposed standard test method for predicting coefficient of friction and wear. Static coefficient of friction measurement using tribometer. Tool wear mechanisms can be studied under lab conditions using pin on disk or pin onflat tests 7,8,9,10 reducing the material cost and improving the environmental sustainability of the process. It is important to have comparable data of analyses obtained during years, with variable humidity and temperature andor in the presence of. When the friction is monitored during the pin on disc test the friction starts at its highest level but after a certain amount.
This test is beneficial if you want to compare tribological properties of a pair of materials. The test machine causes either the disk specimen or the pin. A tribotester is the general name given to a machine or device used to perform tests and simulations of wear. The pin on disc sliding wear test is a commonly used tribological characterization technique to estimate the coefficient of friction and the wear mechanism of diamond films. These unique, high capacity machines allow for the testing of several material combinations at a time, on a single test frame.
Design of normal force control system for a pinondisk. As the name implies, such apparatus consists essentially of a pin in contact with a rotating. Astmg99 standard test method for wear testing with a pin. Materials are tested in pairs under nominally nonabrasive condition. For the pin on disk wear test, two specimens are required. Wear testing and wear measurement university of miskolc. A pinondisk experimental study on a green particulatefluid. Pressureinduced tribofilm formation with triboconditioning. The test machine causes the disk specimen to revolve about the disk center.
A pinondisc study of the tribology characteristics. Pinondisc study of tribological performance of standard. One, a pin is positioned perpendicular to the other, usually a flat circular disk. Application of pinondisc techniques for the study of. Tender disc wear iitjindian institute of technology jodhpur. Sliding occurs between a stationary pin ball and a rotating disc at a fixed rpm speed continuously variable. 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 subject of. G 99 standard test method for wear testing with a pin on disk apparatus scope. Each specimen is then weighed using a digital balance having an accuracy of 0. The test machine causes either the disk specimen or the pin specimen to revolve about the. Pdf modeling and simulation of wear in a pin on disc tribometer.
The study of sliding wear and friction properties is of great practical significance for hard coatings, which are aimed at increasing the life of any component. Procedure unscrew to loosen the sliding plate, move it to the desired position say at 60 mm by looking at. Dry sliding wear test conducted on pin ondisk testing setup. Pin on disk machine tests falex tribology testing and. One, pin with radius tip is positioned perpendicular to a flat circular disc. Pin on disk pod or ball on disk tribometer astm g 99 standard test method for wear testing with a pin on disk apparatus. This test covers a laboratory procedure for determining the.
G9995a reapproved 2000, standard test method for wear testing with a pin on disc apparatus 7 tribology international vol. Studies where multiaxial pin on disk testers were employed were selected from above for analysis in the results section. Astm g 99 standard test method for wear testing on a pinondisk test apparatus. These properties include frictional force coefficients and wear rates of your specific material pair. However, only a few studies have been found which investigate the specific tribological pairing of aluminum and tungsten carbide. Materials are tested in pairs under nominally nonabrasive conditions. Development of pin on disk testing since the 1970s, the procedure for the development of. Bragdon cr1, oconnor do, lowenstein jd, jasty m, biggs sa, harris wh. Pin on disk corrosion wear test astm international. Design and manufacturing of a pinondisk wear testing. Pin on disk wear testing is widely used when trying to select an appropriate material couple for medical, manufacturing, or other applications. Pdf modeling and simulation of wear in a pin on disc. A pinondisc is used to perform the wear experiment.
Design and manufacturing of a pinondisk wear testing apparatus. It was invented by the 18th century dutch scientist musschenbroek. A laboratory test procedure for determining the wear of materials during sliding using a pin on disk apparatus. A new pin on disk wear testing method for simulating wear of polyethylene on cobaltchrome alloy in total hip arthroplasty.
Blockonring under atmospheric conditions and elevated temperatures astm g 77. Pin on disc wear testing machine technical specifications of pin on disc wear testing machine the machine should be able to carry out with testing as standard astm g 99 or equivalent. Wear test the wear test was performed on pin on disc apparatus shown in figure 1. Investigation of wear characteristics of aluminum disc. Download limit exceeded you have exceeded your daily download allowance. These studies were used in summarizing the development of pin on disk section. By this the wear disc between each grind can used be used for many test by positioning the specimen pins at different diameter wear track diameter on wear disc. Wear testing of pin on disc tribometer test procedure steps to be followed in order to conduct the experiment are. Test procedure table 4 shows the pin on disc test matrix. A pin on disc is a classical method commonly used for wear experiments. This test method is a laboratory procedure for discerning the wear of materials during sliding using a pin on disk setup. Jan 09, 2016 in this pin disc wear test er project, test setup was modeled by using elast oplatic finite e lement method fem for aluminum a lloy 6061 o brick and m ild steel with 20n force is applied. Experimental procedure the wear tests were carried out on pin on disc apparatus ducom tr20le, model, india.
Easily changeable holders allow users to quickly change the nature of tribological contact to something that is relevant to their application. Materials are tested in dyads under typically nonabrasive conditions. Standard test method for wear testing with a pinondisk. Schematic of a pin on disc wear test and the arrangement of samples.
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