Abstract: This paper presents a model for robust design, by means of a cost-based allocation of economic tolerances for products and/or processes. The concept of economic tolerance has evolved similarly to the concept of quality. For a long period of time, the manufacturers considered that the meeting of function-based tolerance limits set for products/processes represents a prerequisite for the satisfaction of quality requirements. However, Taguchi studies on quality brought a new perspective in judging and designing economic tolerances of products and/or processes. Following the ideas of Taguchi, a new model for economic tolerances design was developed by the authors and is presented in this paper. The proposed model may be considered an extension of Taguchi approach, by taking into account not only the Taguchi Loss Function but also a quality improvement costs function, referred shortly as the Additional Costs Function. The balance of the two functions yields the values of economic tolerances.
Publication Year: 2008
Publication Date: 2008-11-07
Language: en
Type: article
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