Abstract
This paper presents a linear model for the dry sliding wear behaviour of a PM copper based brake lining material with the addition of MoS2. The model was based on experimental results related to standard pin-on-disk wear tests of the brake material with various MoS2 contents at constant applied load and sliding velocity. The wear load was considered as the input parameter, whereas the wear rate and friction of coefficient as the output parameters. The predicted results were compared with experimental results by simulating a linear process for each MoS2 content of the material, and it was found that the results obtained from such linear process modelling were satisfactory. The results showed that the linear process model represents an useful tool for the prediction of the brake lining material properties, and that it is more effective than timeconsuming experimental procedures.
Kurzfassung
Ein lineares Modell für das Verschleißverhalten eines pulvermetallurgisch hergestellten Bremsbelag- Werkstoffes. Im vorliegenden Beitrag wird über ein lineares Model für das Verschleißverhalten unter trockenem Abgleiten bei einem pulvermetallurgisch hergestellten Bremsbelag-Werkstoffes auf Kupferbasis und mit MoS2-Zusatz berichtet. Das Model basiert auf experimentellen Ergebnissen mit Standard- Stift-Scheibe-Versuchen des Bremsbelagwerkstoffes mit verschiedenen MoS2-Gehalten unter konstanter Beanspruchung und Abgleitgeschwindigkeit. Die Verschleißbeanspruchung wurde dabei als Inputparameter behandelt, während die Verschleißrate und der Reibkoeffizient die Outputparameter darstellten. Die mit dem Modell unter Simulation eines linearen Prozesses vorhergesagten Ergebnisse wurden mit experimentellen Resultaten für jeden MoS2-Gehalt verglichen und es ergaben sich zufrieden stellende Ergebnisse der Simulationen des linearen Prozesses. Die Ergebnisse zeigten, dass die lineare Modellierung ein nützliches Hilfsmittel für die Vorhersage der Eigenschaften des Bremsbelag-Werkstoffes ist und sich gegenüber zeitraubenden Experimenten als effektiv erweist.
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