【摘 要】
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Under spinning conditions, lubricant on islandic spot patted M2 steel disc experiences centrifugal and tangential force components. Depending upon the relative
【机 构】
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Department of Manufacturing Engineering and Engineering Management, City University of Hong Kong;Key
【出 处】
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武汉理工大学学报(材料科学版)(英文版)
论文部分内容阅读
Under spinning conditions, lubricant on islandic spot patted M2 steel disc experiences centrifugal and tangential force components. Depending upon the relative position of the spots and the flow of lubricant, accumulation of lubricant in front of patted islandic spots creates thrusting to mating part and subsequently reduces contact between the mating couple. Whilst wear debris is likely to be spun off the plateau of the spots to their neighbouring valleys so as to reduce wear.Hence, it gives favorable tribological characteristics. Aiming at verifying such mechanisms, studies were performed on M2 steel disc specimens slid with ASSAB 17 tool steel pin. The M2 steel disc specimens were respectively (I) machined with non-patted (NP), (ii) etched to produce in-lined (INE) islandic patts, and (iii) etched to produce staggered (STE) islandic spot patts. Results indicated that the INE patted discs gave most favorable wear characteristics, the NP of the worse characteristics whilst the STE ranged in the middle. However, the actual contact mechanism leads to the descending sequence of favorable friction behaviors nominally as: NP, INE and STE.
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