This 400-page volume is primarily intended as reference material for those attending dimensional metrology training courses, especially the internationally recognized City & Guilds training award from the Mitutoyo Institute of Metrology. The collected experience of teaching tens of thousands of engineers from a variety of industries highlighted the need for a wide-ranging source of information to provide answers to the many questions raised during Mitutoyo metrology seminars. In addition, the book provides an overview of dimensional metrology for interested readers, covering history, accepted practices and an appreciation of the wide choice of measuring equipment available today.
A prominent feature of the book is the extensive use of colour photography framed in an attractive layout to illustrate current measuring equipment, methods and technology. Many of the examples are based on Mitutoyo’s product range, enabling a perspective on quality control issues commonly faced in industry.
This latest edition provides extended coverage of the coordinate measuring machine (CMM), that workhorse of metrology in the manufacturing industries, including a rare overview of specialist CMM applications such as aerofoil and gear measurement. Considerable effort has been put into giving prospective CMM users sufficient insight into manufacturers’ accuracy specifications so that they are able to appraise a machine’s applicability to their particular application, as well as compare competing products. Coverage of the ever-expanding range of probes available for the CMM is covered in a dedicated chapter.
The geometric dimensioning and tolerancing (GD&T) material has been extensively revised to meet the increasing need for a sound appreciation of product specification principles. Drawings to explain key feature definitions are now included and the expanded treatment is intended to provide enough detail for the reader to confidently progress to an accurate interpretation of the relevant international standards themselves.
Coverage of hardness testing and surface texture has been significantly extended. In particular, several significant aspects of surface roughness measurement have been explained in detail in an attempt to clarify a highly technical and standards-dependent subject that is often poorly understood within industry but which is steadily growing in importance.
Continual shrinkage of manufacturing tolerances has increased the importance of accurate product measurement in order to maintain and improve product quality with trustworthy data. Means of improving the trustworthiness of measurement data is one of the central issues addressed by the book.
