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SOME OF THE DUCTILE IRON CASTINGS USED IN A JAPANESE AUTOMOBILE.
Courtesy: Toyota Motors Corporation, Japan

 

AUTOMOBILES USE MANY DUCTILE IRON CASTINGS. While this booklet is too short to describe all the reasons for the material selection, the major ones are castability, ease of machining, reliability in service, vibration damping, surface hardenability, wide range of strength to choose from, etc.

In addition, since the modules of elasticity of Ductile Iron is somewhat lower than that of steel, the stresses due to unavoidable misalignment are lower. Crankshafts are a good example of the utilization of this property.

 

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