engleski

Correlation of wear rate, hardness, and density for a dry clutch friction material

The paper presents the results of experimentally established correlations between dry clutch friction material wear rate and hardness and density, obtained for a substantial number of friction plates from different production batches. The wear rate was reconstructed by using a custom-designed disc-on-disc-type tribometer and mass difference method. A strong positive correlation is observed between stabilized wear rate and hardness for the particular composite-made friction material. Similarly, a positive, although significantly weaker, wear rate vs. density correlation is demonstrated. Using the established correlations may facilitate friction material and clutch production and application quality-check processes.

dry clutch ; friction material ; wear rate ; hardness ; density

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