Development of six sigma concurrent parameter and tolerance design method based on response surface methodology
- Author:
Zhihong ZHANG
;
Zhen HE
- Publication Type:Journal Article
- Keywords:
six sigma;
concurrent parameter and tolerance design;
response surface methodology;
confidence re-gion;
cost reduction
- From:
Journal of Pharmaceutical Analysis
2008;20(3):198-201,212
- CountryChina
- Language:Chinese
-
Abstract:
Using Response Surface Methodology (RSM), an optimizing model of concurrent parameter and tolerance design is proposed where response mean equals its target in the target being best. The optimizing function of the model is the sum of quality loss and tolerance cost subjecting to the variance confidence region of which six sigma capability can be assured. An example is illustrated in order to compare the differences between the developed model and the parameter design with minimum variance. The results show that the proposed method not only achieves robustness, but also greatly reduces cast. The objectives of high quality and low cost of product and process can be achieved simultaneously by the application of six sigma concurrent parameter and tolerance design.
