Study About the Optimisation of Chemical Composition of Cast Irons Used for Casting the Bearing Ball Grinding Disks

摘要

The paper presents the researches realised with the purpose of optimising the chemical composition of cast irons used for casting the bearing ball machining disks. The technological properties, as castability, were taken into consideration. The link between these characteristics and the chemical composition of the cast irons was achieved by the Ni contents and the carbon saturation degree S_c. The paper describes the types of test specimen used, the working conditions and presents the interpretation of the experimental results (second degree polynomial regression curves) as well as the consequent conclusions.