The pin, leaning against the disk by a normal load p, has a cylindrical shape of 20 mm length and 8 mm in diameter. It will test metal, ceramic, and polymer materials in pin, disk, and plate. A stationary pin mounted on a pin holder is brought into contact against a rotating disc at a specified speed as the pin is sliding, resulting frictional. The wear pin creates a circular wear track of the required diameter by offsetting. What are the advantages and disadvantages of a pinondisc. Optimisation of industrial tribological systems with the.
Simple pinondisc tribometer in the pinondisc test, a pin subjected to definite load is pressed onto a rotating disc and wear is determined as shown in fig. The understanding of the wear, friction and lubrication behavior of materials, lubricants and coatings in a variety of test conditions has become increasingly important in the recent years. A tribometer is an instrument for characterizing friction, wear, scratch resistance and influences of certain lubrication and environmental conditions to the tribological system behavior. Disk alignment was allowed by incorporating a kinematic threeball arrangement into the disk underface. E and hard metal tm for cutting tools, and disks are made of materials for work piece used in investigation conducted on lathe. 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. The pinondisk setup comprises two highbandwidth servomotors for the control of the rotating disk and the normal loadrelated spindle drive, as well as a highprecision triaxial piezoelectric force sensor for.
Tender disc wear iitjindian institute of technology jodhpur. Pdf application of pinondisc techniques for the study of. Experimental tribometer a diagram of the pinondisc tribometer used in these experiments is shown in fig 2. The machine should also be capable for ball on disk single lever system in 1. Investigation on tribometer block on disk are performed after investigation on the lathe. Each sample is then weighed using a digital balance having an accuracy of 0. Abstract the contribution brings evaluation of selected materials regarding wear resistance in conditions. This allows a small potential to be applied across the pindisc contact from a lunnfurey contact resistance circuit. This paper proposes a new design for the pinondisc tribometer and.
Microtest mt pinondisk tribometer free download as pdf file. The pinondisk tribometer is a compact, tabletop instrument, which can be installed on all stable tables. 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. Section g pin and sleeve devicesmechanical interlocks. Contact pressure and sliding velocity dependency of the. Design and manufacturing of a pinondisk wear testing apparatus. Tr9756, 4 pin to8b t8 tr97569, 12 pin to8b t9 rn9756, 4 pin surface mount sm19 br9756, connectorized housing h2 maximum ratings. With over installed bases worldwide over the last 35 years, anton paars pinondisk tribometer is the standard for measurement of friction, wear, and lubrication. Design of normal force control system for a pinondisk. Pinondisk reciprocating articulation under constant vertical load. Investigation of wear characteristics of aluminum disc with pin on. Design of normal force control system for a pinondisk tribometer. Hubbell produces the highest quality and most extensive pin and sleeve offering.
The value of any wear test method lies in predicting the relative ranking of material combinations. When dealing with pdf files, many times you need to consider different. The test samples can be of varied shape such as cylindrical as long as there is a. One, a pin with a radiused tip, is positioned perpendicular to the other, usually a. Pdf modeling and simulation of wear in a pin on disc. Investigation of wear characteristics of aluminum disc. Iec and insulgrip pin and sleeve configurations as well as iec mechanical interlock inlets. Macroscopic tribological testing of alkanethiol self. The test machine causes either the disk specimen or. In tribological research, pinondisk tribometers can be conveniently used for. The ducom pinball on disk tribometer is a test instrument designed for accurate and repeatable tribological characterization of bulk materials, coatings and lubricants. Standard test method for wear testing with a pinondisk. Basalts2 is a research instrument for a highresolution view in local and temporal dimension of tribomechanics. Guidance notes on test specimens phoenix tribology.
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. The tribometer conforms to astm designation g 999011 in which the only reference to friction is. The pin is mounted on a stiff lever, designed as a frictionless force transducer. The tribometer can be used in any materials laboratory eager to conduct tribological tests. A novel dynamic load pod tribometer with newly formulated hydrogenating lubricant used to replicate white etching area. The connection to the disc spindle is via a slipring and to the pin by a simple screw connection on the loading piston. The pin loading capsules are electrically isolated from the carrier block and therefore from the disc specimen. The disk is 100 mm outside diameter and 15 mm in thickness. After that, the sample is mounted on the pin holder of the tribometer ready for wear test. The wear pin is a 5mm diameter ball made either from cr steel or wcco.
New methodology achieved the wea replication within 2. Rely on the industry standard for friction, wear, and lubrication measurement. A pinondisk experimental study on a green particulatefluid. Tribological behavior of liquid metallurgyprocessed aa. This continuous rotating pinflatballondisk fig 1 tribometer is one of the most common tribometers to measure the friction coefficient of the. Each pressurevelocitygroup consisted of five pins that were tested twice. 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 pinondisc wear tester uses a high torque drive motor to rotate a flat sample under a loaded wear pin.
In the present study, the fo behaviour of a particular pinondisc machine is described. Multifunction tribometer design deep blue university of michigan. The length of the track can be adjusted prior to starting the measurement. An easytouse instrument, it has an integrated computer control and tribox software. A detailed study of the principles of friction, wear and lubrication i. But after finding the contact pressure and by using archard equation. Before each experiment, the disk and pin surfaces were cleaned with acetone.
It was invented by the 18th century dutch scientist musschenbroek. Replication of white etching area evolution using novel. Test matrix of applied vertical loads and sliding velocities. 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. This paper describes several recent innovations in this field relating to the pinondisk tribometer method. The end of pin, which is in contact with the disc, is provided with a radius. A ball, rigidly held, is often used as the pin specimen. So, the basic problem is that at anything other than very small track diameters, all the sliding effectively takes place on. As the plate slides in a linear reciprocating motion, the resulting frictional forces between the pin and the plate are measured using a strain gage sensor on the arm. As the wear is a surface removal phenomenon and occurs mostly at outer surfaces, it is more appropriate and economical to make surface modification of existing alloys than using the wear resistant alloys. New universal tribometer as pin or ballondisc and reciprocating. Iam doing thiis same problem in ansys workbench 15.
This was achieved by separate alignment of both pin and disk. These results in a point contact between pin and disk at the. More than 20 distinct operating conditions were investigated using spherical 6. A pinondisk test apparatus was modified to decrease the degree of misalignment between the pin end and the disk counterface. Pin diameter vertical load contact pressure sliding velocity mm n mpa mms 126 3. Introduction to the pin on disk tribometer in pin on disk tribometry, a flat, a pin or a sphere is loaded onto the test sample with a precisely known weight.
Tribometer intro the nanovea tribometer table top 60 x 39 x 62 cm offers precise and repeatable wear and friction testing using pin ondisk and linear modes. The sliding of metal parts when they are unlubricated is important in many. Our product range encompasses pin on disc tribometer, high load high temperature pin on disc tribomet, brake material tribo tester, air jet erosion tester, and dry sand abrasion tester, fourball testers, low speed diamond saw, thrust. Rotary pinball on disk tribometer ducom instruments. Sumit sharma, ajay sharma department of mechanical and automation engineering. These unique, high capacity machines allow for the testing of several material combinations at. This paper presents the design of a computercontrolled pinondisk tribometer for friction characterization of various sliding pairs.
Easily changeable holders allow users to quickly change the nature of tribological contact to something that is relevant to their application. Results from the giwm in comparison with the experimental results from the pin ondisc tribometer at three different normal loads 200, 400, and 800 mn. Experimental objective indian institute of technology madras. The elastic arm ensures a nearly fixed contact point and a stable position in the friction track formed by the pin on the sample. With the advent of new applications and technologies like automotive, advanced. Double the track circumference and the point on the pin sees 200 mm sliding per revolution whereas the point on the disc still only sees 10 mm.
The standard apparatus has been modified to allow particular tests to be carried out. Modeling and simulation of wear in a pin on disc tribometer. The test machine causes either the disk specimen or the pin specimen to revolve about the disk center. In order to study the influence of the mechanical parameters on friction and wear, we have made tests using, in open air, a pindisk tribometer fig. It can be operated for solid friction without lubrication and for boundary lubrication with liquid lubricants. Designed, at the core, with a high quality motor and a 20bit position encoder, the tribometer provides access to an unmatched range of rotational speeds from 0. Pdf on the utilization of pinondisc simulative tests for the. The popularity of the method is due to its relative simplicity and abundance of the tribological contacts that can be well described by the a simple pin on disk. A wide range of factory installed and field upgradable options make. 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. Materials are tested in pairs under nominally nonabrasive conditions. With over installed bases worldwide over the last 35 years, anton paars pin ondisk tribometer is the standard for measurement of friction, wear, and lubrication. Since the pinondisk test method does not attempt to duplicate all.
A schematic of the astm fourwire measurement circuit can be found in. With the help of this device, films and composite systems can be tribologically examined and characterised. The present paper contains a description of a new universal tribometer design which. Pin on disk machine tests falex tribology testing and. Pinondisk wear test method covers a laboratory procedure for determining the wear of. The hightemperatureballondisctribometer is used for the determination of friction and wear characteristics of thin films andor materials figure 1.