Quality Improvement of a Casting Process Using Design of Experiments
Quality Improvement of a Casting Process Using Design of Experiments
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DOI: 10.22533/at.ed.10123201211
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Palavras-chave: Diseño de experimentos, calidad de las piezas fundidas, Metodología de Superficies de Respuesta, Análisis de la Varianza (ANOVA), Optimización.
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Keywords: Design of Experiments, Quality of Castings, Response Surface Methodology, Analysis of Variance (ANOVA), Optimization.
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Abstract: Quality improvements of castings which do not meet the acceptance specifications, request to identify the process parameters related to the defects and its levels. This research work, was aimed to optimize the production of pump impellent castings using the Response Surface Methodology approach in a foundry producing grey cast iron components. Process factors like clay percentage, moisture percentage and mold hardness were found to be dominant factors for the production process control. Three different levels of each factor were considered for experimentation. Statgraphics Centurion Statistical Software was used to optimize process parameters. Significant parameters were identified by means of an Analysis of Variance (ANOVA) test. Parameter optimal settings obtained and validated from confirmatory experiments, produced a high per cent of defect free pump impeller castings. The research concluded that careful adjustment of process dominance parameters is necessary, since they have significant effects on quality improvement of castings produced.
- Ramón Ángel Pons Murguía
- Eulalia María Villa González del Pino
- Yanko Bermúdez Villa
- Janeisy Hernández del Sol