Pinon disc tester was used to study the characteristics of materials. Improved pin on disc friction wear testing machine. Figure 2 shows a schematic of the pin on disc wear test rig with the associated instrumentation. The electrochemical and wear parameters of potential, current, charge, sliding speed, frictional force, and normal acceleration can be continuously displayed and recorded. The, coefficient of friction, cof, is recorded in situ. It is important to have comparable data of analyses obtained during years, with variable humidity and temperature andor in the presence of. Standard test method for wear testing with a pinondisk. Nrc protected nrccnrc 3 for the pin on disk wear test, a pin with a curved tip, is positioned perpendicular to a flat sample. The purpose of this project is to study the application of the principle of friction on a pin into.
Evaluation of wear resistance of coin blanks using astm. The pin on disc tester consists of a rotating disc of the material to be tested against a stationary pin. For measuring wear, we are using some apparatus and instruments which give results about the wear rate in the tools and machinery. 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. A pin on disk tribometer with in situ optical profilometry was constructed.
Run the motor at full speed and on the range meter. The friction property of the ncd coatings was characterized using a pin on disc sliding wear test. This project was carried out the design and fabricate a circular pin disc wear tester with effective cost and efficient wear tester pin on disc used in the metallurgy research field. The present invention relates to a kind of tribology theory and condition wearing and tearing simulation principle based on system, the test unit of the friction and wear behavior under laboratory condition between two kinds of metal materials of simulation, be referred to as improved pin on disc friction wear testing. 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. Rotary pinball on disk tribometer ducom instruments. The sliding wear behaviour of the alloys in an environment designed to replicate reactor conditions is examined using a bespoke pin on disc tribometer. However, when we have materials of similar hardness, we need to consider how the wear is shared between the contacting surfaces. The pinondisk measurement is usually done per astm g99052010 standard test method for wear testing with a pinondisk apparatus. Static coefficient of friction measurement using tribometer. The friction property of the ncd coatings was characterized using a pinondisc sliding wear test. Pin on disk corrosion wear test astm international. An experimental investigation on wear test parameters of.
The pin was loaded against the disc through a dead weight loading system. Guidance notes on test specimens phoenix tribology. 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. Flow chart about configuring rotary pin on disk tribometer, ball on disk tribometer etc. Place the weights in the pan and observe the wear pattern on disc made by pin. A and b will be used in the remainder of this paper to identify different material combinations. For all structuralfunctional application, tribological properties of material play most prominent role in day to day life. The pin on disc configuration is commonly used for wear test in labo some phenomena which affect the test results markedly are always overlooked. 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. If, for example, we have a 10 mm diameter pin running on a 100 mm. Measure the radius of wear circle made by pin on the disc. A ball, rigidly held, is often used as the pin specimen. Since the pin on disk test method does not attempt to duplicate all the conditions that may be experienced in service for example. Hence, if we run at 15 mm stroke modelling a contact length of 3 mm in engine with 100 mm stroke, we should use a ring specimen in the test machine of 0.
During the test, the friction and contact potential would be recorded automatically by the test machine. Application of pinondisc techniques for the study of tribological. 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. Studies where multiaxial pin on disk testers were employed were selected from above for analysis in the results section. Easy to change modules allows it to run practically any friction test, wear test.
The platform comes with lower x,y and and upper multiple z stages. The popularity of the method is due to its relative simplicity and. Wear analysis the wear behavior of amc was tested using a pin on disc tribo meter. Pdf standard test method for wear testing with a pinon. Materials are tested in pairs under nominally nonabrasive condition. A pin on disk experimental study on a green particulatefluid. One, pin with radius tip is positioned perpendicular to a flat circular disc. 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. Tender disc wear iitjindian institute of technology jodhpur. Pdf tribological study of al2o3tio2cu composite by. One, a pin with a radiused tip, is positioned perpendicular to the other, usually a flat circular disk.
The astm code for this method is g99 fig 3 micro hardness test optical microscopy were done axioskop2 and use zen software to make optical image, in this image were taken at. Tribometer multi function with inline profiler rtec. A tribometer is an instrument that measures tribological quantities, such as coefficient of friction, friction force, and wear volume, between two surfaces in contact. Standard test method for wear testing with a pin on disk apparatus1 this standard is issued under the. 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 surface. Lmsmm20140026 evaluation of wear resistance of coin blanks using astm standard pin on disc testing method for jarden zinc products classification. Schematic of a pin on disc wear test and the arrangement of samples. Friction results and in situ wear track images were. Tribological properties of aluminum lubricated with palm. Easily changeable holders allow users to quickly change the nature of tribological contact to something that is relevant to their application. An experimental investigation on wear test parameters of metal matrix composites using taguchi technique t r hemanth kumara. Sliding occurs between a stationary pin ball and a rotating disc at a fixed rpm speed continuously variable.
Finite element analysis of pinondisc tribology test. For all experiments, the sliding speeds are adjusted to 2 and 4 ms. Annealing, normalizing, hardening and tempering of steel. A straingauged frictiondetecting arm holds and loads the. Tribology arises when there is relative motion between two surfaces in contact results loss of mass from surface by rubbing. It was invented by the 18th century dutch scientist musschenbroek. Design and manufacturing of a pinondisk wear testing.
Design of normal force control system for a pinondisk. Pin on disk test friction and wear typically wear rates and wear resistance characterization of materials is typically performed using various types of tribometers, while pin on disk test being probably one of the most. A is the material of the disc, and b is the material of the pin. This standard is issued under the fixed designation g99. Pin on disc wear tests are carried out by applying a constant normal load in the contact while rotating the disc at constant speed. For the pin on disk wear test, two specimens are required. An ultrananocrystallinediamond coated sphere was run on a 95 wt % au and 5 wt. The contact surface of the cast sample pin was made flat so that it should be in contact with the rotating disk. A number in parentheses indicates the year of last reapproval. 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. Each test was performed twice to ensure repeatability. During the wear test, loads can be applied either mechanically or pneumatically.
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. 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. Study of wear pattern behavior of aluminum and mild steel. Advances in tribological testing of artificial joint.
Under these conditions, the wear occurs on the softer material, sometimes. Pin on disk pod or ball on disk tribometer astm g 99. Pinondisk wear test method covers a laboratory procedure for determining the wear of materials during sliding using a pin traveling on a rotating disk. Investigation of wear characteristics of aluminum disc. Pinondisk wear test an overview sciencedirect topics. Tool wear mechanisms can be studied under lab conditions using pinondisk or pinonflat tests 710 reducing the material cost and. G9995a reapproved 2000, standard test method for wear testing with a pin on disc apparatus 7 tribology international vol. Pin on disk test friction and wear typically wear rates and wear resistance characterization of materials is typically performed using various types of tribometers, while pin on disk test being probably one of the most common. Design and manufacturing of a pinondisk wear testing apparatus. Wear testing and wear measurement university of miskolc. The volume lost allows calculating the wear rate of the material. Application of pinondisc techniques for the study of. The machine should also be capable for ball on disk single lever system in 1.
The pin on disk test is generally used as a comparative test to study the tribological properties of the materials. In this operation the weight loss is continuously measured and by the help of which we can find the wear rate using archards equation. Since the pinondisk test method does not attempt to duplicate all the conditions that may be experienced in service for example. Wear test on brake rotor using pin on disc apparatus. The test machine causes either the disk specimen or the pin. Cn101629888a improved pinondisc friction wear testing. During the test, the pin was pressed against a rotatingen32 steel disc with hardness 65 hrc by applying the load. After that, the sample is mounted on the pin holder of the tribometer ready for wear test. One, a pin is positioned perpendicular to the other, usually a flat circular disk. Blockonring under atmospheric conditions and elevated temperatures astm g 77. Hence for this purpose we make pin on disc apparatus in which the pin is in continuous contact with the rotating disc when we applied the constant normal load. Pin on disc wear test machines were designed and constructed.
The prepared samples were used for tribological test for room temperature on wear and friction measuring test rig tr20. The tribometer conforms to astm g9995a entitled standard test method for wear testing with a pin on disc. Pin on disc wear testing free download as pdf file. These unique, high capacity machines allow for the testing of several material combinations at a time, on a single test. The test machine causes either the disc specimen or the. As well as the electrostatic probe, which was located 90 degrees away from the pin disc contact and 0.
Pdf modeling and simulation of wear in a pin on disc. The wear test for all specimens was conducted under the normal loads of 20n, 40n and a sliding velocity of 2 and 4 ms. This is a pin on disk tribometer that ive developed. These studies were used in summarizing the development of pin on disk section.
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 properties of hydraulic fluids using a cyclic stress vane apparatus multispecimen test machine form 0061907 the falex multispecimen test machine is a versatile system for the. Now that clinically relevant wear mechanisms could be facilitated on multidirectional pin on disk testers, test parameters that would produce clinically relevant rankings of materials based on their wear rates had to be identified. In tribological research, pin on disk tribometers can be conveniently used for characterization of friction of different sliding pairs such as dry clutch facings 1, 2 and other. 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. Standard test method for wear testing with a pin on disk apparatus. Development of pin on disk testing since the 1970s, the procedure for the development of. Test procedure table 4 shows the pin on disc test matrix. Pin on disc friction and wear tests phoenix tribology ltd.
Specimens of size 10 mm diameter and 25 mm length were cut from the cast samples, and then machined. Pin on disc machine is a laboratory apparatus that is used for measuring friction and wear properties. The above mentioned pin on disc test apparatus was used to determine the sliding wear characteristics of the composite. In the configuration used, the disc rotated about a vertical axis and the pin was held stationary over the disc about the vertical axis. Additionally, rheological tests were conducted to measure the viscosity of the.
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