Development of Lead Free Copper Based Alloy for Piston Pin Bushing Under Higher Load Engines
Date Published: 2006-04-03
Paper Number:2006-01-1105
DOI: 10.4271/2006-01-1105
Citation:
Zushi, K., Sakai, K., Sugawara, H., and Ishikawa, H., "Development of Lead Free Copper Based Alloy for Piston Pin Bushing Under Higher Load Engines," SAE Technical Paper 2006-01-1105, 2006, doi:10.4271/2006-01-1105.
As the recent engines are designed for higher performance, piston pin bushing used for small end of connecting rod must endure higher dynamic load and oil temperature conditions. Therefore, the bushing is required higher wear resistance and anti-corrosion. And it is also expected to develop the bushing without lead due to environmental concerns. In this report, lead free copper based bushing alloy was studied. At first, in order to keep the anti-seizure property without lead, we studied the effects of hard particles added into copper based alloy. Second, we evaluated the effect of addition of hard particles on wear resistance and anti-corrosion.
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