The linear wear test, ASTM G, reproduces the linear reciprocating motion found in many real-world tribology mechanisms. ASTM G – Designation: G – 02 Standard Test Method for Linearly Reciprocating Ball-on-Fla. ASTM G – – Download as PDF File .pdf), Text File .txt) or read online. ASTM G –

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If wear is nonuniform, six cross-sectional pro? If neither procedure in 8.

Crankshafts and camshafts are often evaluated with the block-on-ring test as defined in the ASTM G77 standard. Individual reprints single or multiple copies of f133 standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. If you feel that your comments have not received asym fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

Two wear tests were performed on each?

Linear Reciprocating (ASTM G)

Multiple sensors, automated test procedures, modularity, easy interchangeability of test setups, and data analyzing capability make the tribometer a key instrument for the automotive industry. Wear volume of the? New fuel cell concept brings biological design to better electricity generation.

It is often useful in analyzing test results to note the magnitudes and durations of any observed friction transitions. The coefficient of variation for the friction coefficient in the same tests was 1. See Test Methods E and E It is possible that during mounting, some contamination was inadvertently placed on them, and this? Report the standard deviation. Statically applied loads shall be kept constant within a maximum deviation of Grain size and percent porosity of specimens v133 be reported, if applicable.


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Universal Mechanical Testers for Tribology Testing in the Automotive Industry

Use of a spherical tip alleviates the alignment problems associated with? Pin scar measurements may be made by removing the ball specimen holder and placing the wear scar portion under a re?

Further guidance in measuring and reporting friction data may be found in Guide G It has been estimated that half or more of the friction losses in internal combustion engines occur at that interface, making friction tests of those g13 critical. A provision is made for applying a uniform normal force load to the contact between the ball and the? Universal mechanical testers UMTs that asrm able to perform multiple tests in asm single platform with interchangeable modules can help manufacturers meet test specifications quickly and economically.

Bath temperature shall be controlled to within a maximum deviation of Friction therefore will vary at each position across the track according to the velocity and direction of movement.

A flat, pin or ball tip is loaded onto a test sample with a precise weight. For example, it may start high then experience a transition to a lower value during the test. NOTE 3—Various methods have been used to measure the wear volumes of non-?


A cycle satm de? Your comments are asmt either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. NOTE 1—Certain materials could be adversely affected by cleaning in solvents.

Warning—Due to inertial effects, differences in the loading and? For the friction coefficient, the within-laboratory coefficient of variation was If friction never reaches a steady value, its range of values may be reported with appropriate notations as to its behavior.

The height of the specimen or mount may require adjustment to ensure that this condition g313 ful? Any ball movement within the holder during the test invalidates the test results.

A calibrated ocular or a photomicrograph of known magni? A UMT can measure Vickers hardness and can be reconfigured to a linear test setup from rotary in minutes.

G — 02 friction forces generated during sliding. The coefficient of variation of the wear volume of the? By using our website you consent to all cookies in accordance with our Cookie Policy.