Abstract

The cam is one of the automotive engine parts. As for material of cam, FCD700 is used. It is spheroidal graphite cast iron. As for spheroidal graphite cast iron, high mechanical strength and high toughness is more excellent than gray iron. Its shape is an oval, and it has the circular arc portion and the straight line portion. Generally, the cam is ground in finish machining. However, when those two portion are ground, residual stress and cutting resistance become problems. In this study, the high speed grinding of cam material was carried out step by step grinding, and residual stress and cutting resistance were measured.

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