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Working conditions and materials of camshaft(Popularity:813) 
source: author: Release time:2022-04-08
  The camshaft bears periodic impact load. The contact stress between cam and tappet is very large, and the relative sliding speed is also very high, so the wear of cam working surface is more serious. In view of this situation, camshaft journal and cam working surface should not only have high dimensional accuracy, small surface roughness and sufficient stiffness, but also have high wear resistance and good lubrication.

Camshafts are usually forged from high-quality carbon steel or alloy steel, and can also be cast from alloy cast iron or nodular cast iron. The working surfaces of journal and cam are polished after heat treatment.
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