In a pinondisc wear tester, a pin is loaded against a flat rotating disc specimen such that a circular wear path is described by the machine. Advances in tribological testing of artificial joint. An experimental investigation on wear test parameters of. The objective of this study was to assess the suitability of using multidirectional pin on disk pod testing to characterize wear behavior of retrieved ultrahigh molecular weight polyethylene uhmwpe. These pin on disc wear testing machine are used in engineering industries. Standard test method for wear testing with a pinondisk. A tribotester is the general name given to a machine or device used to perform tests and simulations of wear. Effects of the pinondisc parameters on the wear of alumina. The machine should also be capable for ball on disk single lever system in 1.
Annealing, normalizing, hardening and tempering of steel. Free stroke within range if the free stroke is good, but the applied stroke is too long, there is probably a problem with the foundation brake. Dec 11, 20 these highly demanded pin on disc wear testing machine is manufactured with high grade raw materials. After that the specimen is mounted on the pin holder of the tribometer ready for wear test. Design and manufacturing of a pinondisk wear testing apparatus.
The electrochemical and wear parameters of potential, current, charge, sliding speed, frictional force, and normal acceleration can be continuously displayed and recorded. We tested the machine at 1 hz and 2 hz to determine if the faster cycling rate might be acceptable, decreasing the duration needed for such testing. Aisi 316 l n hemispherical pins of 5 mm radius of curvature were mated against mm diameter and 10 mm thick discs of the same material. Pinon disk wear test method covers a laboratory procedure for determining the wear of materials during sliding using a pin traveling on a rotating disk. 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. The principal areas of experimental attention in using this type of apparatus to measure wear are described. Pin on disc wear tests are carried out by applying a constant normal load in the contact while rotating the disc at constant speed. Conventional pin on disc tribometers usually have a load capacity below 100 n, which makes it difficult to simulate the severe service conditions under high pressure. Either disc or pin can serve as specimen, while the other as counterface. Pin on disk corrosion wear test astm international. This test method covers a laboratory procedure for determining the wear of materials during sliding using a pin on disk apparatus. Pin on disk testing provides a method of characterizing the wear between two materials.
The cfpeek composites square pin was slid against a mild steel disc r a values range 0. During the test, the friction and contact potential would be recorded automatically by the test machine. Pin on disk pod testers capable of multidirectional sliding can correctly rank formulations of uhmwpe with respect to their predictive in vivo wear behavior. With the right environmental chamber one can also control and measure the effect of humidity, temperature, and atmospheric composition. However, there are still uncertainties regarding pod test parameters for facilitating clinically relevant wear mechanisms of uhmwpe. With this machine one can control test parameters such as speed, contact pressure hence pv, and time. Element performs pin on disk wear testing in reference to astm g99, astm g3 and astm f732 on our inhouse, custom. Metallurgical evaluations of the post test wear scarring can also be performed.
Apr 11, 2017 universal wear tester supplis with surface abrasion head inflated diaphragm method and flex abrasion head as well as necessary weights and initial supply of abradents. Guidance notes on test specimens phoenix tribology. Bragdon cr1, oconnor do, lowenstein jd, jasty m, biggs sa, harris wh. The sliding wear behaviour of the alloys in an environment designed to replicate reactor conditions is examined using a bespoke pin on disc tribometer. A ball, rigidly held, is often used as the pin specimen. Wear testing and wear measurement university of miskolc. Experimental objective indian institute of technology madras.
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. As the name implies, such apparatus consists essentially of a pin in contact with a rotating. A new pin on disk wear testing method for simulating wear of polyethylene on cobaltchrome alloy in total hip arthroplasty. The test machine causes the disk specimen to revolve about the disk center. Realistic approach to pinondisc wear testing measurement. Jan 09, 2016 design and development of pin disc wear tester part 5. Schematic of a pin on disc wear test and the arrangement of samples. 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. Dry sliding wear test conducted on pin ondisk testing setup. The machine can be used to evaluate wear and friction properties of materials under pure sliding conditions.
Moreover, it may take days or even weeks to test one sample using a low load tribometer due to the superior wear resistance of the test sample. Wear testing procedure pinondisc pod sliding wear experiments as per astm g9905 standard were carried out in ducom make tr 20m12ev high temperature pin on disk tribometer. The wear simulation technique proposed is applied for a pinondisk configuration considering creep behaviour of a peek material, the frictional heat generation and the thermal expansion. The average brake pad wear can be measured, depending on the access, at the close fit longer guide pin at the brake disc entry or at the cl earence fit shorter guide pin at the brake disc exit. 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. Standard test method for wear testing with a pinondisk apparatus1 this standard is issued under the. Pdf modeling and simulation of wear in a pin on disc tribometer. A new pinondisk wear testing method for simulating wear of. In some cases, we can also introduce third body debris to characterize wear under realworld worstcase conditions. Pin on disc wear testing machine at best price in bengaluru. Each specimen is then weighed using a digital balance having an accuracy of 0. The schematic of pin on disc configuration is shown in fig. Procedure unscrew to loosen the sliding plate, move it to the desired position say at 60 mm by looking at. A pinondisk experimental study on a green particulatefluid lubricant the present investigation analyzes a green, petroleum free lubricant that is produced by mixing two environmentally benign componentscanola oil and boric acid powder.
Experimental procedure the wear tests were carried out on pinondisc apparatus ducom tr20le, model, india. G9904 standard test method for wear testing with a pinon. Therefore measure the thickness x of the flange of the axle and the distance y between the flange and the. Design and manufacturing of a pinondisk wear testing. Din iso 71481 testing the tribological behavior of material for sliding bearings part 1.
Pin on disc wear test machines were designed and constructed. If we run a pin on disc machine with the pin loaded onto the disc from above any wear debris generated will tend to accumulate on. The results illustrate the initial part of the wear process, which involves the edgelike contact and the full contact phases. This study was designed to test in a pin on disk tester the effects of crossing path motion on the wear rate and wear morphology of uhmwpe.
Materials are tested in pairs under nominally nonabrasive conditions. Pin on disk machine tests falex tribology testing and. Testing of bearing materials, test procedure a, pin on disk. Pdf modeling and simulation of wear in a pin on disc. The role of counterface roughness on the tribological. The wear track, alloy and composite specimens are cleaned thoroughly with acetone prior to test. This feature moves the pivot from the truck bed to the pinbox mounting wings under the nose of the trailer and allows worry free towing up to 90. A tribometer is an instrument that measures tribological quantities, such as coefficient of friction, friction force, and wear volume, between two surfaces in contact.
One, a pin is positioned perpendicular to the other, usually a flat circular disk. A number in parentheses indicates the year of last reapproval. Not all tow vehicle and trailer combinations will allow a 90 degree turn. Standard test method for pin abrasion testing1 this standard is issued under the. It was invented by the 18th century dutch scientist musschenbroek. For the pinondisk wear test, two specimens are required.
Our range of pin on disc wear testing machine capacity is highly appreciated for its precise design, ease of operation and long life. Astmg99 standard test method for wear testing with a pin. This is a pin on disk tribometer that ive developed. The coefficient of friction may also be determined. Tender disc wear iitjindian institute of technology jodhpur. Astm g 99 standard test method for wear testing on a pin on disk test apparatus. 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. Pinondisk wear test an overview sciencedirect topics. Check the following and reference cvsa outofservice criteria. 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.
Astm g99 standard test method for wear testing with a. Pin on disc tribological test through the addition of wear debris. A pinondisk experimental study on a green particulatefluid. Wear rates for the pin and the disk are calculated from the volume or weight of material removed during the test.
438 91 1362 134 1221 938 31 402 355 205 392 107 866 931 253 921 12 1434 1577 280 556 1153 929 1442 1048 1491 908 1592 1653 4 305 1126 470 985 669 1125 793 305 85 1359