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Micro-assembly is a key enabling technology for cost effective manufacture of new generations of complex micro products. It is also a critical technology for retaining mdustrial capabilities in high labour cost areas such as Europe since up to 80% of the production cost in some industries is attributed directly to assembly processes. With the continuous trend for product miniaturisation, the scientific and technologi cal developments in micro-assembly are expected to have a significant long-term economic, demographic and social impact. A distinctive feature of the process is that surface forces are often dominant over gravity forces, which determines a number of specific technical challenges. Critical areas which are currently being addressed include development of assembly systems with high positional accuracy, micro gripping methods that take into ac count the adhesive surface forces, high precision micro-feeding techniques and mi cro-joining processes. Micro-assembly has developed rapidly over the last few years and all the pre dictions are that it will remain a critical technology for high value products in a number of key sectors such as healthcare, communications, defence and aerospace. The key challenge is to match the significant technological developments with a new generation of micro products that will establish firmly micro-assembly as a core manufacturing process.
Grinding is a crucial technology that employs specific abrasive processes for the fabrication of advanced products and surfaces. Handbook of Machining with Grinding Wheels, Second Edition highlights important industry developments that can lead to improved part quality, higher productivity, and lower costs. Divided into two parts, the book b
This book covers innovative breakthroughs in additive manufacturing processes used for biomedical engineering. More and more, 3D printing is selected over traditional manufacturing processes, especially for complex designs, because of the many advantages such as fewer restrictions, better production cost savings, higher quality control, and accuracy. Current challenges and opportunities regarding material, design, cost savings, and efficiency are covered along with an outline of the most recent fabrication methods used for converting biomaterials into integrated structures that can fit best in anatomy while still obtaining the necessary architecture, mechanical reliability, biocompatibility, and anti-bacterial characteristics needed. Additional chapters will also focus on selected areas of applications such as bionics, affordable prostheses, implants, medical devices, rapid tooling, and drug delivery. Additive Manufacturing Processes in Biomedical Engineering: Advanced Fabrication Methods and Rapid Tooling Techniques acts as a first-hand reference for commercial manufacturing organizations which are mimicking tissue organs by using additive manufacturing techniques. By capturing the current trends of today’s manufacturing practices this book becomes a one-stop resource for manufacturing professionals, engineers in related disciplines, and academic researchers.
This book describes recent research advances and computer tools that can be applied in the determination of geometric tolerances. A framework for tolerance synthesis is developed and used with artificial intelligence techniques to provide computer methods for both analysis and synthesis of geometric tolerance specifications. Tolerance primitives, based on a sound theory of tolerancing, are used to represent tolerance relationships or links between geometric entities and functional requirements. Algorithms are developed for the determination of boundedness and the measurement of sufficiency. A detailed constraint network is used to represent tolerance relations for a part under design and provide for the composition of tolerance specifications.