Friction Wear And Surface Testing Pdf

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Supported by the expertise of Surface Engineering and Tribology at the Catholic University of Leuven, and by cooperations with international research institutes such as Tekniker Spain and Centre Tudor Luxembourg.

Friction, Lubrication, and Wear

Supported by the expertise of Surface Engineering and Tribology at the Catholic University of Leuven, and by cooperations with international research institutes such as Tekniker Spain and Centre Tudor Luxembourg.

We use certified specimens and train our operators regularly, complying with ISO Talk to us about your specific needs. Capable of simulating a variety of field conditions, the Falex Block-on-Ring Test Machine evaluates the friction and wear characteristics of materials and lubricants in research, quality control, and technical service applications. Tests are typically performed using a flat HP block for single line contact, but conforming blocks for area contact may also be used. Download PDF.

The tester can also be used to evaluate anti-wear properties of low viscosity lubricants and aqueous emulsions. Conestoga Vane pump test runs are used to test the anti wear properties of hydraulic fluids at the final stage of the development of a new formulation.

Therefore the weight loss of pump components, achieved after a certain period of time under constant high load conditions, is evaluated with empirically derived upper wear limits. If the wear of ring and vanes remains within the range marked by zero and these limits wear, the formulation fulfils the fluid specifications. With the confocal microscope, we can measure 3-D surfaces with the highest resolution and this helps us particularly with the quantification of low wear in our friction and wear simulations.

Depending on the requirements of the customer, the technique can be an additional measurement technology to the well known 2D profiles and light optical microscopy measurements of wear scars. Download our leaflet on Confocal Microscopy. The test is used to determine the load carrying properties of a lubricant at high test loads. Although nominally a pin on disc machine, the motion is not that of a conventional machine in which the disc rotates about its own axis, with corresponding uni-directional sliding at the pin face.

In this machine, the disc follows an orbital path without rotation. The pin track may be adjusted to be circular, elliptical or linear reciprocating. This orbital motion following a circular or elliptical path is similar to that generated in multi-axis hip joint simulators and produces wear that correlates well with these types of device and with in vivo behaviour. The new station parallel wear generator is a prototype instrument we have designed to increase our testing efficiency drastically.

The testing conditions of this new multistation system are more flexible than those of the station machine. Test specimens can be more versatile, and speed as well as heating and lubricating are more flexible. The concept is a rod-on-specimen configuration, whereby the rods can be either a standard 'countermaterial' to evalute the wear of 10 individual specimens, or alternatively, the rod can be the object of testing : a coating, surface treatment or new alloy.

In that case, the rod is tested against standard countermaterials. The machine combines the versatility and alignment advantages of the standard block-on-ring machine, with the efficiency gains of a multistation system. Contacts can be point crossed cylinders , line flat on cylinder or area conformal block on cylinder. Heating and lubrication are integrated. Although only conceived for wear generation no friction measurements , the tester fulfills the demand for efficient but statistically relevant wear tests.

Often these tests are long, so obtaining 10 data points simultaneously, is a great advantage. The MultiSpecimen Test Machine is the most versatile commercial system for evaluating friction, wear, and abrasion characteristics of materials, coatings, and lubricants. Standard Test Methods and Application Specific Custom testing programs are possible due to user selected contact geometries, motions, velocities, temperatures, contact pressures, and test specimen materials.

One test apparatus meets many test specifications and simulates a broad range of field applications. Applications include research and development, quality control, product qualification and the evaluation of physical and performance characteristics of materials, coatings, and lubricants. A four line contact is established as load is applied through a mechanical gage by a ratchet wheel and an eccentric arm. It is now a well-established research and development tool for evaluation of lubricants, materials, coatings and surface treatments.

With the TE 77, sliding contact conditions can be matched to a number of machine elements. Specimens may either be of a standard format, or cut from real components, preserving surface finish and other properties. More on Phoenix Tribology TE First introduced in the 's, this precision built instrument was developed to perform accelerated wear testing. Capable of providing reliable data in a matter of minutes compared to the years that may be required by in-use testing, the Taber Abraser Abrader rapidly became the world standard for evaluating abrasion resistance.

Used to test a wide spectrum of materials, the instrument has been referenced in numerous standards and specifications including plastics, coatings, laminates, leather, paper, ceramics, carpeting, safety glazing, etc. More on the Taber Abraser. This significant investment fits in our strategy to expand our high quality testing and characterisation infrastructure to remain true to our mission : providing high quality data to our industrial customers in the context of our credo "quality, knowledge, partner solutions" With the confocal microscope, we can measure 3-D surfaces with the highest resolution and this helps us particularly with the quantification of low wear in our friction and wear simulations.

Lubricants are compared using the average size of the scar diameters worn on the three lower clamped balls. It is a highly compact, cost effective and easy to operate wear test device for the evaluation of prosthetic joint materials. It can be supplied with a total of either 50 or sample test stations.

This capacity makes it possible to test many different material combinations simultaneously, under identical test conditions.

Friction, Lubrication, and Wear

Our research. The machine has both point contacts and line contacts Reciprocating wear rig - fully computer controlled with a frequency range of 2 to 50 Hz, stroke of 0. Capable of a vast range of loads from 0. Can be used to measure coefficients of friction, Stribeck curves, wear using a pin-on-disc adapter kit , traction under EHD, mixed and boundary lubricant, boundary additive performance, and friction under transient conditions. Reciprocating wear rig.


Inline 3D Profilometer to measure volume wear, roughness change vs time automatically.


Friction, Lubrication, and Wear

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Tribological Consulting And Lab Services

Basic friction angle is an essential parameter when estimating shear strength of rock joints, according to Barton's equation and other approaches. Nevertheless, there is still no standard procedure to estimate it by means of laboratory testing. This study investigates the influence of tilting rate on basic friction angle results, as well as the impact of previous wear on the surfaces when carrying out various tilt tests on the same surfaces. An experimental program including 5 tilting rates, 5 joints for every rate and 5 tests for every joint was carried out in rock samples of moderately weathered granite. Interpretation of results suggest that whereas tilt rate does not significantly affect results of basic friction angle, surface wear and the number of test performed on every sample may play a meaningful role.

The materials testing lab at Nova Werke AG offers testing and consulting services both for internal research and development and external customers. At Nova laboratory we can conduct several tribological systems to investigate coatings and surface engineered materials subjected to friction and wear for their application in harsh environments, e. Our dedication to the highest levels of customer service and excellence helps us to solve complex wear and friction problems related to coating solutions. The Tribology laboratory is well equipped to cover a wide range of tribological systems to simulate industrial friction and wear problems at different scales. Here are some of our tribometers and testing set-ups:.

Tribometers | Friction and Wear Loss Testing Equipment

The surface properties of a bulk material are not accepted totally and independently. The tribology is the most important field that comprises the component design with static and dynamic relations for a reliability and performance.

2 Response
  1. Belmiro C.

    MMW-1A Vertical Universal Friction Wear Test Machine is similar to Test machine in main application and functions, it's widely used as machine in design and develop hydraulic oil, combustion engine oil, gear oil etc..

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