A pinondisk experimental study on a green particulatefluid. An al 2o 3 ball 6mm diameter was used as the counter material. Then initial and final weight of the each specimen noted before and after the wear test. Download limit exceeded you have exceeded your daily download allowance. Pinondisk wear test method covers a laboratory procedure for determining the wear of materials during sliding using a pin traveling on a rotating disk. For the pinondisk wear test, two specimens are required.
Specimen pin alignment we need to be careful when running a hard pin on a soft disc or plate. Effects of applied pressure on the wear behavior of brake. The disk diffusion method is performed using muellerhinton agar mha, which. The wear track was examined using nanovea 3d noncontact profilometer after the tests. Dry sliding wear test conducted on pin ondisk testing setup. A four line contact region is established as load is applied.
During the experiment, the sliding between the pin and disc may result in wear on. A new pin on disk wear testing method for simulating wear of polyethylene on cobaltchrome alloy in total hip arthroplasty. In the present work, the tribological behaviour of a commercial lowmetallic friction. Since the action performed on all samples is identical, the wear rate can be used as a quantitative comparative value for wear resistance. Pinondisc tester was used to study the characteristics of materials. An attempt is made to describe analytically wear in a lubricated pinondisc configuration. Pinondisc tribotesting is widely used to investigate the sliding behaviour of materials, including friction materials used in braking systems. In wear test of pin on disc apparatus i found that mass loss of pin when i used aluminum disc is higher than when i used steel disc under the same conditions,pressure, velocity and contact time can. For measuring wear, we are using some apparatus and instruments which give results about the wear rate in the tools and machinery. The electrochemical and wear parameters of potential, current, charge, sliding speed, frictional force, and normal acceleration can be continuously displayed and recorded. A pin on disc is a classical method commonly used for wear experiments. Air disc brakeadb22x225sn67sk7 automobile parts pdf.
The coefficient of friction is determined by the ratio of the frictional force to the loading force on the pin. One, a pin is positioned perpendicular to the other, usually a flat circular disk. Experimental procedure the wear tests were carried out on pinondisc apparatus ducom tr20le, model, india. Astm g99 17 standard test method for wear testing with a pin.
Procedure unscrew to loosen the sliding plate, move it to the desired position say at 60 mm by looking at. The machine should also be capable for ball on disk single lever system in 1. For the pin on disk wear test, two specimens are required. The wear rate of an iron disc in lubricated contact with an iron pin on a pin on disc wear tester was measured using thin layer activation. The volume lost allows calculating the wear rate of the material. Experimental objective indian institute of technology madras. 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. This test is beneficial if you want to compare tribological properties of a pair of materials. A pinondisc is used to perform the wear experiment. Axial load was applied to the pins against the plane surface of the rotating disc. The principal areas of experimental attention in using this type of apparatus to measure wear are described. In this work, design and manufacturing procedures of a pinondisk wear.
The pinondisk tester is made by the swiss company csminstruments formerly known as csem. The ratio of disc wear to pin wear was shown to be lower than that predicted on the basis of equal volumetric wear and, under one set of conditions, to have systematic correlations with the conditions of load and sliding speed. A controlled environment is particularly important when testing friction and wear of some plastics and ceramic materials. Therefore, we are going to design a circular pin disc wear tester. Din iso 71481 testing the tribological behavior of material for sliding bearings part 1. Effects of the pinondisc parameters on the wear of alumina. The objective of this study was to assess the suitability of using multidirectional pinondisk pod testing to characterize wear behavior of retrieved ultrahigh molecular weight polyethylene uhmwpe. Hightemperature hardness and wear resistance of stellite. The pin on disk tester can be placed in a climate chamber, in order to provide a controlled environment temperature and humidity. The sample preparation plays a very important role while performing pinondisk wear test. In the configuration used, the disc rotated about a vertical axis and the pin was held stationary over the disc about the vertical axis. Pinondisc tribological tests pod were carried out under dry conditions, using a mt60ni.
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. A pinondisc is a classical method commonly used for wear experiments. The pinondisk tester can be placed in a climate chamber, in order to provide a controlled environment temperature and humidity. A paul loading cycle with a peak force of 330 n was applied with a frequency of 1. 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. May 10, 2016 pin on disc wear testing machine mh hussainy.
In the tension test a specimen is subjected to a continually. The pin on disc tester is used extensively to measure the friction and wear rate of low friction coatings such as diamond like carbon prior to coating actual components such as automotive valve trains. However, in the last decades machining processes have been. Hightemperature hardness and wear resistance of stellite alloys. A ball, rigidly held, is often used as the pin specimen. It has been found that the hardness and wear resistance of stellite alloys behave differently at room temperature and at high temperatures procedure. These properties include frictional force coefficients and wear rates of your specific material pair. G9995a reapproved 2000, standard test method for wear testing with a pin on disc apparatus 7 tribology international vol. Each specimen is then weighed using a digital balance having an accuracy of 0. Static coefficient of friction measurement using tribometer. 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.
A new pinondisk wear testing method for simulating wear of polyethylene on cobaltchrome alloy in total hip arthroplasty. The disc is a rotating element on which the pressure is applied through a fixed pin with the help of pneumatic actuator. Wear disc diameter 160mm en31 disc 5560 hrc and 8mm. A pinondisk tribometer with in situ optical profilometry was constructed. Wear test the wear test was performed on pinondisc apparatus shown in figure 1. A pinondisc study of the tribology characteristics of sintered. The pin on disk tester is made by the swiss company csminstruments formerly known as csem. Pin on disc friction and wear tests phoenix tribology ltd. Pinondisk wear test an overview sciencedirect topics. Astmg99 standard test method for wear testing with a pin. Investigation of wear characteristics of aluminum disc with.
The sample preparation plays a very important role while performing pin on disk wear test. 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. The wear rate of an iron disc in lubricated contact with an iron pin on a pinondisc wear tester was measured using thin layer activation. Test procedure the coefficient of friction, cof, and the wear resistance of three saw blades were evaluated by nanovea tribometer using linear reciprocating wear module. One, a pin with a radiused tip, is positioned perpendicular to the other, usually a. This pin has a special shape and is fixed below defined angle.
Pin on disk wear testing is widely used when trying to select an appropriate material couple for medical, manufacturing, or other applications. Pdf this project was carried out the design and fabricate a circular pin disc wear. Pin on disk instrument used in food industry duration. These unique, high capacity machines allow for the testing of several material combinations at a time, on a single test frame. With a ballended pin, alignment problems are removed but the test starts with high. Bragdon cr1, oconnor do, lowenstein jd, jasty m, biggs sa, harris wh. If the pin is flat ended, the alignment should be ensured, since otherwise nonuniform loading occurs resulting in nonuniform wear and possibly overloaded conditions. After a breakin period, the electrochemical pinondisk produced constant wear rates independent of path length for both astm a 514 steel and 304 stainless steel. A model for lubricated wear in a pinondisc configuration. The equipment rotates a 14 inch diameter test pin journal against two 12 inch diameter vee blocks. Wear test the wear test was performed on pin on disc apparatus shown in figure 1. 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. Dry sliding wear tests for different number of specimens was conducted by using a pinondisc machine. View and download bendix air disc brakeadb22x225sn67sk7 manual online.
Design and manufacturing of a pinondisk wear testing apparatus. Wear and contact temperature evolution in pinondisc. The pin was held against the counter face of a rotating disc en31 steel disc with wear track diameter 60 mm. What are the main difficulties in performing pinondisk wear. Astm g 99 standard test method for wear testing on a pinondisk test apparatus. An experimental investigation on wear test parameters of. Materials are tested in pairs under nominally nonabrasive conditions.
Using the disc model, it is easy to identify and understand our own style, recognize and cognitively adapt to different styles, and develop a process to communicate more effectively with others. Pinondisk wear test method covers a laboratory procedure for determining. Pinondisk wear testing is widely used when trying to select an appropriate material couple for medical, manufacturing, or other applications. 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 wear track, alloy and composite specimens are cleaned thoroughly with acetone prior to test. A new pinondisk wear testing method for simulating wear of. A study of disc wear on a pinondisc tester by thin layer. Standard test method for wear testing with a pinondisk. Pin on disk corrosion wear test astm international. An ultrananocrystallinediamond coated sphere was run on a 95 wt % au and 5 wt. The pin on disc tester is used extensively to measure the friction and wear rate of low friction coatings such as diamond like carbon prior to coating.
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. 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. The purpose o f this pro ject is to study t he applicat ion of the pr inciple o f friction o n a pin into the c. In engineering, tension test is widely used to provide basic design information on the strength of the materials. The prepared samples were used for tribological test for room temperature on wear and friction measuring test rig tr20. Step by step procedure for abrasion resistance test of cement concrete paver. Design and manufacturing of a pinondisk wear testing. 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.
Friction results and in situ wear track images were. The test machine causes the disk specimen to revolve about the disk center. How to use this report the disc report is divided into 3 parts introducing the disc model, helping you understand your own style, and. The coefficient of friction may also be determined.
During the wear test, loads can be applied either mechanically or pneumatically. A ball crater after a pin on disc test on a low friction coating graphitic coating, load 80 n, pin on disc test time 30 minutes. After that the specimen is mounted on the pin holder of the tribometer ready for wear test. 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. Realistic approach to pinondisc wear testing measurement. The flatness and squareness of the sample is essential while establishing contact with the counter disc. Dry sliding wear test conducted on pin ondisk testing. The evaluation of the average contact temperature is paramount to understand the acting friction and wear mechanisms, and to determine the role of the materials. Oct 04, 2017 wear test method apparatus pin on disc duration.
It has been found that the hardness and wear resistance of stellite alloys behave differently. Tribology in cutting process and comparison between pinon. Pin on disk machine tests falex tribology testing and. The wear test for all specimens was conducted under the normal loads of 20n, 40n and a sliding velocity of 2 and 4 ms. The wear tests were conducted in 90% bovine calf serum at 37 1c, following a 10 mm. Wear rates for the pin and the disk are calculated from the volume or weight of material. Universal testing machine, dial gauge, vernier caliper and scale. The pin was loaded against the disc through a dead weight loading system. The friction property of the ncd coatings was characterized using a pinondisc sliding wear test. The setup has been designed for easy replacement of the disc and pin material which is used for evaluating wear performance. G9917 standard test method for wear testing with a pinondisk apparatus. 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.
Application of pinondisc techniques for the study of. Testing of bearing materials, test procedure a, pin on disk. The different in wear test when using aluminum and steel disc. More than one wear mechanism may be operating simultaneous.