A NEW INSIGHT INTO THE TAGUCHI METHOD

摘要

To obtain high quality products at low cost and in a short time is an economical and technological challenge to today's engineering community.Design of Experiments based on the Taguchi approach is a powerful technique to attain this objective.In some processes,it is necessary to consider not only two factors but also the ratio of their levels 'as a factor.' This paper introduces a new look at the Taguchi method that makes it possible,by choosing the proper levels,to evaluate the ratio of two factors as a new factor in the same orthogonal array.An experiment to study four three-level factors was designed,and a case study is presented to illustrate the ratio of the two three-level factors as a new factor using the same L_9 orthogonal array.