Studies where multiaxial pin on disk testers were employed were selected from above for analysis in the results section. Installation of pin on disc wear tester for the department of metallurgical and materials engineering. Pin on disc wear testing free download as pdf file. Investigate wear resistance of aluminium 2024 alloy by. Astm g 99 standard test method for wear testing on a pin on disk test apparatus. Optimization of friction and wear behaviour in hybrid. Before the actual test cycle, a 15 minute runin was completed to produce steady state wear in the test. The indenter a pin or a ball is mounted on a stiff lever, designed as a frictionless force transducer. Figure 2 shows a schematic of the pin on disc wear test rig with the associated instrumentation. Pin on disk testing provides a method of characterizing the wear between two materials. 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. The normal load, rotational speed, and the wear track diameter are all be set by the user prior to the pin on disc test. The equipment rotates a 14 inch diameter test pin journal against two 12 inch diameter vee blocks.
Pin on disk test friction and wear typically wear rates and wear resistance. Materials and methods pin on disc tribological tests pod were carried out under dry conditions, using a mt60ni. Pinondisc pod testing is widely used to investigate the sliding behaviour of materials and relevant wear mechanisms under different. Design of normal force control system for a pinondisk. If we run tests with a soft pin on a hard disc, we tend to confine the wear to the soft pin. However, only a few studies have been found which investigate the specific tribological pairing of aluminum and tungsten carbide 11. Pinondisc testing of lowmetallic friction material sliding against. With such a softer disc material, granite adheres to the disc and produces more sliding wear compared with harder disc materials 12. This is often employed when a client has a nonstandard procedure or specimen that they would like to test. The test machine causes the disk specimen to revolve about the disk center. Wear test procedure a pin on disc wear tester was used for friction and wear experiments. Standard test method for wear testing with a pin on disk apparatus. The prepared disc was placed on pin on disc experimental setup.
Pin on disc test this test covers a laboratory procedure for determining the wear of materials during sliding using pin disc apparatus. Standard test method for wear testing with a pin on disc apparatus 7 tribology international vol. The uniaxial crusher utilized similar pin samples as the crushing pin on disc device. Wear testing and wear measurement university of miskolc. With this machine one can control test parameters such as speed, contact pressure hence pv, and time. In this work, design and manufacturing procedures of a pinondisk wear. The machine should also be capable for ball on disk single lever system in 1. Pinon disc tester was used to study the characteristics of materials. After that the specimen is mounted on the pin holder of the tribometer ready for wear test. Application of pinondisc techniques for the study of. Bragdon cr1, oconnor do, lowenstein jd, jasty m, biggs sa, harris wh. Design and manufacturing of a pinondisk wear testing. The file size being less than 1 mb the transaction uploading time will be veryfast. Dry sliding wear tests were carried out using pin on disc type wear tester at different parameters like sliding speed, applying load, sliding time and percentage of reinforcement were varied in the range given in.
As the name implies, such apparatus consists essentially of a pin in contact with a rotating. The wear track, alloy and composite specimens are cleaned thoroughly with acetone prior to test. Design and manufacturing of a pinondisk wear testing apparatus. Astm d2714 calibration and operation of the falex blockonring friction and wear testing machine astm d2981 wear life of solid film lubricants in oscillation motion astm d3704 wear preventive properties of lubricating greases using the falex blockon ring test machine in oscillating motion astm d2509 extreme pressure properties of lubricating greases. Investigation of wear characteristics of aluminum disc with pin on. Wear tests were conducted using a pin on disc apparatus under dry contact conditions. In literature, different methods for quantifying wear in pinondisc and pinon plate testing are suggested. Our engaged experts use this method to evaluate the performance of a wear couple or to characterize the performance of different materials against a standard surface. The coefficient of friction is determined by the ratio of the frictional force to the loading force on the pin. The principal areas of experimental attention in using this type of apparatus to measure wear are described.
Pin on disc test techniques were performed and wear effects were analyzed by volume variation and semenergy dispersion spectroscopy eds microscopy in order to obtain a deeper understanding for the detected wear phenomena. If, for example, we have a 10 mm diameter pin running on a 100 mm. Dry sliding wear test conducted on pin ondisk testing. A and b will be used in the remainder of this paper to identify different material combinations.
Procedure unscrew to loosen the sliding plate, move it to the desired position say at 60 mm by looking at. During the test, the friction and contact potential would be recorded automatically by the test machine. The pin on disc test has proved useful in providing a simple wear and friction test for low friction coatings such as diamondlike carbon coatings on valve train components in internal combustion engines. Pin on disk machine tests falex tribology testing and. Pdf effects of the pinondisc parameters on the wear of. A reciprocating pinonplate testrig for studying friction. Comparison of laboratory wear test results with the in. Standard test method for wear testing with a pin on disk apparatus1 this standard is issued under the. Test specimens were prepared and conducted the standard samples test. A ball, rigidly held, is often used as the pin specimen. Run the motor at full speed and on the range meter.
The overall pin on disk tribometer system is controlled by. Materials are tested in pairs under nominally nonabrasive condition. As a minimum, the report should specify material type, form, processing treatments, surface finish, and specimen preparation procedures. Most pin on disc testers are computer controlled and store the measured friction versus time or. Investigation of wear characteristics of aluminum disc. For the pinondisk wear test, two specimens are required. Astm g99 17 standard test method for wear testing with a pin. This test covers a laboratory procedure for determining the. Although the pin surface can also be wear and friction tested. Finite element analysis of pinondisc tribology test.
Advances in tribological testing of artificial joint. Testing of bearing materials, test procedure a, pin on disk. A is the material of the disc, and b is the material of the pin. The popularity of the method is due to its relative simplicity and. In this work, design and manufacturing procedures of a pinon disk wear. To study the wear characteristics of ferrous, nonferrous and composite materials for different parameters. Pin on disc wear principle a flat or a sphere shaped indenter is loaded on the test sample with a precisely known force. Schematic of a pin on disc wear test and the arrangement of samples.
Wear testing of pin on disc tribometer test procedure steps to be followed in order to conduct the experiment are. In a pin on disc wear tester, a pin is loaded against a flat rotating disc specimen such that a circular wear path is described by the machine. Wear rates for the pin and the disk are calculated from the volume or weight of material removed during the test. Test procedure the coefficient of friction, cof, and the wear resistance of two wear resistant valve coatings and. G 99 95a reapproved 2000e1 standard test method for wear testing. Test procedure table 4 shows the pin on disc test matrix. Din iso 71481 testing the tribological behavior of material for sliding bearings part 1. If the pin is flat ended, the alignment should be ensured, since otherwise nonuniform loading occurs resulting in nonuniform wear and possibly overloaded conditions.
These studies were used in summarizing the development of pin on disk section. Syllabus metallography and material testing laboratory. Pinondisk wear test method covers a laboratory procedure for determining. Pin on disk wear testing is widely used when trying to select an appropriate material couple for medical, manufacturing, or other applications. Therefore, we are going to design a circular pin disc wear test er. Each test was performed twice to ensure repeatability. The experiment is divided into three parts which the first two parts are carried out by using plint te67 pinondisc wear test machine and the last part is by a twodiscs wear test machine. A new pinondisk wear testing method for simulating wear. A pin on disc is used to perform the wear experiment. A new pin on disk wear testing method for simulating wear of polyethylene on cobaltchrome alloy in total hip arthroplasty. As well as the electrostatic probe, which was located 90 degrees away from the pin disc contact and 0.
This is a pin on disk tribometer that ive developed. This continuous rotating pinflatballondisk fig 1 tribometer is one of. Guidance notes on test specimens phoenix tribology. Pdf this project was carried out the design and fabricate a circular pin disc wear tester with. Hightemperature hardness and wear resistance of stellite. Pin on disk pod or ball on disk tribometer astm g 99. This test method covers a laboratory procedure for determining the wear and friction of materials, liquid and lubricants etc. Standard test method for wear testing with a pinondisk. Development of pin on disk testing since the 1970s, the procedure for the development of. However, when we have materials of similar hardness, we need to consider how the wear is shared between the contacting surfaces. Materials are tested in pairs under nominally nonabrasive conditions.
The final option is a complete custom abrasion or wear test. One, a pin is positioned perpendicular to the other, usually a flat circular disk. These unique, high capacity machines allow for the testing of several material combinations at a time, on a single test frame. Tender disc wear iitjindian institute of technology jodhpur. 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. Blockonring under atmospheric conditions and elevated temperatures astm g 77. Improvement of high temperature wear resistance of aisi. Pinondisc tester was used to study the characteristics of materials. Initially, pin surface was made flat such that it will support the load over its entire crosssection called first stage. Experimental objective indian institute of technology madras. Bending test on metallic and nonmetallic specimens.
The analysis were performed by using a pin on disk equipment and is performed under the astm g99 standard for the pin on disk wear test conducted in this research the specimens were a pin with a rounded tip, which is positioned perpendicular to a flat circular disk. One, pin with radius tip is positioned perpendicular to a flat circular disc. Hightemperature hardness and wear resistance of stellite alloys by. 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. A number in parentheses indicates the year of last reapproval. 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. Effects of the pin on disc parameters on the wear of alumina article pdf available in advances in science and technology 65. The wear behavior of the coating was evaluated using a pin on disc wear system against sic abrasive medium of 120 and 600 grades at 5, 10, 15, and 20 n normal load. In literature, different methods for quantifying wear in pinondisc and pinonplate testing are suggested. On pin holder, attached with cantilever beam in pin on disc, the test specimen was fitted to make the contact of pin with the disc.