Analysis and prediction of green permeability values in sand moulds using multiple linear regression model

Abstract

The analysis and prediction of green permeability values in sand moulds using multiple linear regression model has been undertaken. Empirically generated data in Sand Testing Laboratory, National Metallurgical Development Centre, Jos, was used for the study. The model described the relationship existing between the two variables of clay and moisture content and green permeability, the dependent variable. This was compared with existing theories on the relationship between green permeability and the two variables. A mathematical model was developed for the prediction of green permeability; it was tested and proved to be a good estimation tool for estimating green permeability values on the foundry shop floor.

Keywords: Green permeability, analysis, prediction, model, multiple linear regressions.