Geometric Design Tolerancing: Theories, Standards and Applications - Tapa dura

 
9780412830006: Geometric Design Tolerancing: Theories, Standards and Applications

Sinopsis

The importance of proper geometric dimensioning and tolerancing as a means of expressing the designer’s functional intent and controlling the inevitable geometric and dimensional variations of mechanical parts and assemblies, is becoming well recognized. The research efforts and innovations in the field of tolerancing design, the development of supporting tools, techniques and algorithms, and the significant advances in computing software and hardware all have contributed to its recognition as a viable area of serious scholarly contributions. The field of tolerancing design is successfully making the transition to maturity where deeper insights and sound theories are being developed to offer explanations, and reliable implementations are introduced to provide solutions. Machine designers realized very early that manufacturing processes do not produce the nominal dimensions of designed parts. The notion of associating a lower and an upper limit, referred to as tolerances, with each dimen­ sion was introduced. Tolerances were specified to ensure the proper function of mating features. Fits of mating features included clearances, location fits, and interference fits, with various sub-grades in each category assigned a tolerance value depending on the nominal size of the mating features. During the inspection process, a part is rejected if a dimension fell outside the specified range. As the accuracy requirements in assemblies became tighter, designers had to consider other critical dimensions and allocate tolerances to them in order to ensure the assembly’s functionality.

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Reseña del editor

The importance of proper geometric dimensioning and tolerancing as a means of expressing the designer's functional intent and controlling the inevitable geometric and dimensional variations of mechanical parts and assemblies, is becoming well recognized. The research efforts and innovations in the field of tolerancing design, the development of supporting tools, techniques and algorithms, and the significant advances in computing software and hardware all have contributed to its recognition as a viable area of serious scholarly contributions. The field of tolerancing design is successfully making the transition to maturity where deeper insights and sound theories are being developed to offer explanations, and reliable implementations are introduced to provide solutions. Machine designers realized very early that manufacturing processes do not produce the nominal dimensions of designed parts. The notion of associating a lower and an upper limit, referred to as tolerances, with each dimen­ sion was introduced. Tolerances were specified to ensure the proper function of mating features. Fits of mating features included clearances, location fits, and interference fits, with various sub-grades in each category assigned a tolerance value depending on the nominal size of the mating features. During the inspection process, a part is rejected if a dimension fell outside the specified range. As the accuracy requirements in assemblies became tighter, designers had to consider other critical dimensions and allocate tolerances to them in order to ensure the assembly's functionality.

Reseña del editor

The importance of proper dimensioning and tolerancing as a means of expressing the designers functional intent and controlling geometric variations is a well established area of engineering. Mechanical Engineering Tolerance research areas and implementations with a special focus on design issues. It features keynote papers on modelling, representation and inspection of tolerances as well as reviews of relevant evolving international standards and future directions.
In detail, Geometric Design Tolerancing: theories, standards and applications:

  • Provides an overview of tolerancing, classifies the subfields and illustrates the links between them as indicative of emerging directions and challenges.
  • Discusses state-of-the-art research, working implementation, practical application and case studies.
  • Includes contributions by recognised experts, researchers and practitioners in tolerancing design. £/LIST£
    This book provides an excellent resource to anyone interested in computer-aided tolerancing, as well as CAD/CAM users. It will also serve as a good starting point for advanced research activity. The book is derived from the 5th CIRP seminar on Computer-Aided Tolerancing, sponsored by SME, CSME and ASME in Toronto, Canada 1997.
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    9781461376569: Geometric Design Tolerancing: Theories, Standards and Applications: Theories, Standards and Applications

    Edición Destacada

    ISBN 10:  1461376564 ISBN 13:  9781461376569
    Editorial: Springer, 2012
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