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Computer-aided Tolerancing
Theory and practice of tolerances are very important for designing and manufacturing engineering artifacts on a rational basis. Tolerance specifies a degree of "discrepancy" between an idealized object and its physical realization. Such discrepancy inevitably comes into our product realization processes because of practical cost consideration or our inability to fully control manufacturing processes. Major product and production characteristics which are affected by tolerances are product quality and cost. For achieving high precision machines tight tolerance specification is necessary, but this will normally increase product cost. In order to optimally compromise the conflicting requirements of quality and cost, it is essential to take into account of the total product life cycle throughout product planning, design, manufacturing, maintenance and recycling. For example, in order to construct durable products under severe working conditions, low sensitivity of product functionality with respect to tolerances is required. In future, re-use of components or parts will become important, and tolerance synthesis with respect to this aspect will be an interesting future research topics.
Geometric Design Tolerancing: Theories, Standards and Applications
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...
Expectations and Disappointments of Industrial Innovations
The Integrated Manufacturing System (IMS), Group Technology, Numerical Control, and Computer Aided Design (CAD) were four outstanding innovations that were one-time milestones of scientific industrial management. This book describes the expectations and disappointments of the common pitfalls of these ingenious ideas, which leads to understanding of their gradual disappearing, and proposes a way to restore these methods for long term utility and value. The first three innovations dominated the industry till the mid-1970s. Surprisingly, the reason for them being replaced is the same: research of the “routine” was misleading regardless of its ingenuity. In the fourth case, CAD does not supp...
Machinery
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Microtecnic
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C.I.R.P. Annalen
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Olympic Review
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