This paper deals with the application of Six-Sigma methodology to the flywheel casting process in foundry to minimize the defects in this process. The primary tools used in this interventionist process were the process map, cause-and-effect matrix and the failure mode effective analysis. The present study proposes to measure the performance criteria of the process through investigating the effect of working parameters, namely, moisture content, green strength, permeability, and loss on ignition on sand preparation. The experimental results were statistically analyzed and modeled through response surface methodology (RSM). Based on the findings, the optimized process parameters were taken for experiment and better performance obtained in the production process was confirmed. The comparison between the existing process and the proposed process has been attempted in this paper and the results have been discussed in detail.
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Kumaravadivel, A., Natarajan, U. Application of Six-Sigma DMAIC methodology to sand-casting process with response surface methodology. Int J Adv Manuf Technol 69, 1403–1420 (2013). https://doi.org/10.1007/s00170-013-5119-2
- Six Sigma
- Process mapping
- Cause-and-effect matrix