Six Sigma in Manufacturing of Ingot Moulds in Foundry and Pattern Shop by Improving Sand Quality

摘要

The casting industries suffer from low quality production and productivity due to different aspects of process practices, where va rious process parameters are involved. A study performed in foundry and pattern shop of a steel industry explains various challenges that cause defects in casting. This work controls the sand quality which improves the casting and reduces the defects. Six sigma is control philosophy for red ucing the defect vice versa improves the quality. This work also attempt the improvement in sand quality for Ingot mould in Foundry and pattern shop of steel industry where such innovative task has not been performed for achieving the Six Sigma by using the optimization techniques like ANOVA and Taguchi for controlling process parameters by available soft tool platform MINITAB in research society. Some other study methods also been performed for refine the results of research like Process Flow Diagram, Why Why Analysis, Cause And Effect Diagram, Pareto Pie Chart, Analyze Phase, Improve and Contro l Phase.