ASTM G – Free download as PDF File .pdf), Text File .txt) or read online for free. ASTM G 2. Referenced Documents ASTM Standards: B Test Method for Dynamic Coefficient of Friction and. Wear of Sintered Metal Friction Materials Under Dry. ASTM G Standard Guide for Measuring and Reporting Friction Coefficients.
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Standard Guide for Measuring and Reporting Friction Coefficients
Asuperscript epsilon e indicates an editorial change since the last aztm or reapproval. These databases can be searched for material couples andtribosystems of interest.
Requirements for minimum data and a format for presenting these data are suggested. Current edition approved October 10, Originallypublished as G – The overall goal of this guide is to provide a reporting format that will enable computer databases to be readily established. Link to Active This link will always route to the current Active version of the standard.
Any of the listed tests or other acceptedtests may be used.
Standard Costing Jul 25, It is hoped that the use of auniform reporting format will provide the basis for the sstm of handbooks and computerized databases. These databases can be searched for material couples and tribosystems of interest.
Other important factors to simulate arenormal force contact pressurevelocity, type of motion reciprocating versus unidirectional and environment. This breakaway force is commonlyused to calculate static friction Fig. General friction testing precautions are citedand a prescribed method of recording friction data is recom-mended.
ASTM Gpdf – Documents
Thank you for visiting our website and your interest in our free products and services. A number in parentheses indicates the year of last reapproval.
Requirements for minimum data and a format for present-ing these data are suggested. Each triboelementcontains one or more tribosurfaces. If you have any questions about copyright issues, please report us to resolve them. The usual manifestation is a cycling decrease andsubsequent increase in the friction force as sliding proceeds Fig. Test surfaces that are prone to blocking or interlock-ing of surface features are particularly prone to showing abreakaway force spike.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Plasticizer migration can be the cause. Blocking is a term used to describe thetendency of some plastic materials to stick to each other afterlong periods of contact. Summary of Guide 4. Their use will significantly reduce the need for each laboratory to do its own testing. G 40 — Weartest machines are often equipped with sensors to measurefriction forces also.
ASTM G – 10() Standard Guide for Measuring and Reporting Friction Coefficients
Friction Wear Force Abrasive Shoe. Aatm use of the suggested reporting form will increase the long-term usefulness of the test results within a given laboratory and will facilitate the exchange of test results between laboratories. Sufficient information on test conditions will be available to determine applicability of the friction data to the engineer’s specific needs.
In this case an elastic frictionmeasuring system would be appropriate.
When pulling a steelcable over the same roll, it would be more appropriate to use astiff testing system. No other units of measurement are included in this standard. The overall goal of this guide is to provide a reporting formatthat will enable computer astmm to be readily established. To the running of this website, we need your help to support us.
In addition, elastic beams containing straingages may produce different friction responses than a more rigid load celleven if used on the same friction testing machine. We Need Your Support.
The appropriate device to use is the onethat closely simulates a tribosystem of interest. We are always happy to assist you.
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