Abstract
Taguchi methods typically cover two related concepts. First, the use of statistical methods, based on the analysis of variance, to design experiments that enable the identification of key factors relating to product quality and performance. Second, when considering the effectiveness of a design, the level of degradation or loss, is a function of the deviation of any design parameter from its target value. Together these concepts form the basis of a group of continuous improvement/robust design techniques aimed at improving product and process quality in order to maximise customer satisfaction.
The book is a recent translation of the original Japanese edition. It claims to provide a practical, hands-on approach to robust design technologies so that they can be implemented in a cost and time efficient manner and backs this up with the mathematics and science behind the technologies. It focuses on the development of robust products and technology, and includes chapters on quality philosophy, quality strategies and planning, management and organisation, robust design methods and tools, experimental design and case studies from industry.
In essence the book covers Taguchi’s three-stage design process of, systems design, parameter design and tolerance design. Systems design identifies the basic elements of the design, which will produce the desired output, such as the best combination of processes and materials. Parameter design, which determines the most appropriate set of optimising parameters, covering these design elements by identifying the settings of each parameter that will minimise variation from the product’s target performance. Finally, tolerance design, which identifies the components of the design that are sensitive in affecting the quality of the product and establishes tolerance limits that will give the required level of variation in the design.
There are good industrial case studies throughout, which cover a variety of typical problems and possible solutions. There is a particularly good chapter on the problem of missing or not enough data and how to achieve sound results in this situation.
The book is aimed at industrialists, academics, researchers and students who would like a good understanding of Taguchi methods, including their science, implementation and impact and is considered to provide a valuable contribution in its knowledge domain. At £125 it would sit well in an academic library and has the potential to earn its keep in an industrial context.