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This research is based on statistical research methodology to evaluate variation in casting surface finish in nonferrous production operations.

The Data Base of 82 cast surface finish measurements were produced in three U.S. foundries. The data base is comprised of two sub-groups. One data sub-group has a sample size of 58 aluminum cast surfaces. The second data sub-group consists of 24 cast bronze surface finishes.

The research is a continuation of preceding research with Gray Iron Castings. A macro operational level, rather than a micro laboratory level is used. The results substantiate the primary objective to help improve casting quality and production productivity. The experimental results reconfirm the benefits of using statistical theory and computer technology in applied operations research.

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