New Test Method for Standard Test Method for Traction and Wear Testing with a Mini traction machine Test Instrument
1. Scope
1.1 This test method covers a laboratory procedure for determining the Traction Curve Measurement on a Ball on Disc Tribometer.
1.2 Traction data is typically used by lubricant or additive manufacturers who are looking to optimise formulations (usually to reduce energy losses) in non-conforming lubricated contacts. The use of traction data is, however, not limited to this application and has been used to qualify the performance of skin creams, food formulations, clutch fluids, and solid lubricants amongst other.
1.3 This test method standard uses a specific set of test parameters (load, temperatures, speeds, slide-roll-ratios, materials, etc.) that were then used in an interlaboratory study (ILS), the results of which are given here (Reference to the test results)
1.4 Now it is often found in practice that users may follow all instructions given here, but choose other test parameters, such as different load, speeds, slide-roll-ratios, temperature, materials, etc., and thereby obtain different test results. Such a use of this standard is encouraged as a means to cover the different potential applications of this test method. However, it must be clearly stated in any report that, while the directions and protocol in Test Method XXXX were followed (if true), the choices of test parameters were different from Test Method XXXX values, and the test results were therefore also different from the Test Method XXXX results. This use should be described as having “followed the procedure of ASTM XXXX.” All test parameters that were used in such case must be stated.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Keywords
Traction curve, friction, ball on disc, tribology, traction fluids
Rationale
• Traction data is typically used by lubricant or additive manufacturers who are trying to optimise formulations (usually to reduce energy losses) in non-conforming lubricated contacts.
• The use of traction data is, however, not limited to this application and has been used to qualify the performance of skin creams, food formulations, clutch fluids, and solid lubricants amongst other.
• This set of test conditions is not the only way to conduct traction curve measurements, however, it is a standard method. that would be used consistently.
