Experimental And Numerical Analysis Of Injection Molding With Microfeatures

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Experimental and Numerical Analysis of Injection Molding with Microfeatures

Author : Liyong Yu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (548 download)

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Book Synopsis Experimental and Numerical Analysis of Injection Molding with Microfeatures by : Liyong Yu

Download or read book Experimental and Numerical Analysis of Injection Molding with Microfeatures written by Liyong Yu and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Injection molding has great potential for mass production of polymer products with microfeatures. In this study, injection molding with micro-features is investigated experimentally and numerically. Different methods were used to fabricate tool steel, photoresist and nickel mold inserts for injection molding with micro-features. Experiments have been conducted and analyzed for the radial flow case and the unidirectional flow case. Simulations based on 2.5D software packages for are preformed. Both numerical simulation and experimental results showed that the injection speed, feature width and mold temperature are important for mold filling. However, conventional midplane simulation is found to be inappropriate for multi-scale structures, typically found in micro-injection molded parts. For the unidirectional flow, an x-z planar simulation based on the general momentum equation is able to achieve better efficiency than 3D simulations. A hybrid numerical technique is developed, which can significantly reduce the computation cost, and yet provide good flow simulation around the microfeatures. The mold-melt heat transfer coefficient and injection speed are shown to be very important factors in determining the filling depth in microstructures. Different choices of the value of the constant heat transfer coefficient give very different results. Therefore, a local heat iii transfer model is collaborated in our code. It produces good prediction in our simulation. However, it may not include all effects. Wall-slip may also contributes to the filling length in microchannels. A decrease of the heat transfer coefficient and the occurrence of wall-slip are likely to occur in micro channels. Further investigations are needed.

ANTEC 2001

Author : Society of Plastics Engineers. Technical Conference
Publisher : Taylor & Francis
ISBN 13 :
Total Pages : 914 pages
Book Rating : 4./5 ( download)

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Book Synopsis ANTEC 2001 by : Society of Plastics Engineers. Technical Conference

Download or read book ANTEC 2001 written by Society of Plastics Engineers. Technical Conference and published by Taylor & Francis. This book was released on 2001 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:

SPE/ANTEC 2001 Proceedings

Author : Spe
Publisher : CRC Press
ISBN 13 : 9781587160981
Total Pages : 1408 pages
Book Rating : 4.1/5 (69 download)

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Book Synopsis SPE/ANTEC 2001 Proceedings by : Spe

Download or read book SPE/ANTEC 2001 Proceedings written by Spe and published by CRC Press. This book was released on 2001-05-07 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conference proceedings from 'Antec 2001' held on 6-10 May 2001 in Dallas, Texas. This includes the Volume III topic of Special Areas Color and Appearance Division.

Micromanufacturing Engineering and Technology

Author : Yi Qin
Publisher : William Andrew
ISBN 13 : 0323312675
Total Pages : 859 pages
Book Rating : 4.3/5 (233 download)

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Book Synopsis Micromanufacturing Engineering and Technology by : Yi Qin

Download or read book Micromanufacturing Engineering and Technology written by Yi Qin and published by William Andrew. This book was released on 2015-05-08 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: Micromanufacturing Engineering and Technology, Second Edition, covers the major topics of micro-manufacturing. The book not only covers theory and manufacturing processes, but it uniquely focuses on a broader range of practical aspects of micro-manufacturing engineering and utilization by also covering materials, tools and equipment, manufacturing system issues, control aspects and case studies. By explaining material selection, design considerations and economic aspects, the book empowers engineers in choosing among competing technologies. With a focus on low-cost and high-volume micro-manufacturing processes, the updated title covers technologies such as micro-mechanical-cutting, laser-machining, micro-forming, micro-EDM, micro-ECM, hot-embossing, micro-injection molding, laser micro-sintering, thin film fabrication, inkjet technology, micro-joining, multiple processes machines, and more. Edited by one of the few world-experts in this relatively new, but rapidly-expanding area and presenting chapters written by a 40-strong team of leading industry specialists, this book is an invaluable source of information for engineers, R&D researchers and academics. - Covers key micro-manufacturing technologies, processes and equipment with high-volume production capabilities, enabling large companies as well as SMEs to introduce those technologies in production and business and reduce production costs - Outlines micro-manufacturing system engineering and practical issues pertaining to material, design, handling, metrology, inspection, testing, sensors, control, system integration and software, and micro-factories - Enables manufacturing practitioners to choose the right technology suitable for a particular product-manufacture

Computational Fluid Dynamics

Author : Oleg Minin
Publisher : BoD – Books on Demand
ISBN 13 : 9533071699
Total Pages : 412 pages
Book Rating : 4.5/5 (33 download)

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Book Synopsis Computational Fluid Dynamics by : Oleg Minin

Download or read book Computational Fluid Dynamics written by Oleg Minin and published by BoD – Books on Demand. This book was released on 2011-07-05 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is planned to publish with an objective to provide a state-of-art reference book in the area of computational fluid dynamics for CFD engineers, scientists, applied physicists and post-graduate students. Also the aim of the book is the continuous and timely dissemination of new and innovative CFD research and developments. This reference book is a collection of 14 chapters characterized in 4 parts: modern principles of CFD, CFD in physics, industrial and in castle. This book provides a comprehensive overview of the computational experiment technology, numerical simulation of the hydrodynamics and heat transfer processes in a two dimensional gas, application of lattice Boltzmann method in heat transfer and fluid flow, etc. Several interesting applications area are also discusses in the book like underwater vehicle propeller, the flow behavior in gas-cooled nuclear reactors, simulation odour dispersion around windbreaks and so on.

Insights and Innovations in Structural Engineering, Mechanics and Computation

Author : Alphose Zingoni
Publisher : CRC Press
ISBN 13 : 1317280628
Total Pages : 3395 pages
Book Rating : 4.3/5 (172 download)

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Book Synopsis Insights and Innovations in Structural Engineering, Mechanics and Computation by : Alphose Zingoni

Download or read book Insights and Innovations in Structural Engineering, Mechanics and Computation written by Alphose Zingoni and published by CRC Press. This book was released on 2016-11-25 with total page 3395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insights and Innovations in Structural Engineering, Mechanics and Computation comprises 360 papers that were presented at the Sixth International Conference on Structural Engineering, Mechanics and Computation (SEMC 2016, Cape Town, South Africa, 5-7 September 2016). The papers reflect the broad scope of the SEMC conferences, and cover a wide range of engineering structures (buildings, bridges, towers, roofs, foundations, offshore structures, tunnels, dams, vessels, vehicles and machinery) and engineering materials (steel, aluminium, concrete, masonry, timber, glass, polymers, composites, laminates, smart materials). Some contributions present the latest insights and new understanding on (i) the mechanics of structures and systems (dynamics, vibration, seismic response, instability, buckling, soil-structure interaction), and (ii) the mechanics of materials and fluids (elasticity, plasticity, fluid-structure interaction, flow through porous media, biomechanics, fracture, fatigue, bond, creep, shrinkage). Other contributions report on (iii) recent advances in computational modelling and testing (numerical simulations, finite-element modeling, experimental testing), and (iv) developments and innovations in structural engineering (planning, analysis, design, construction, assembly, maintenance, repair and retrofitting of structures). Insights and Innovations in Structural Engineering, Mechanics and Computation is particularly of interest to civil, structural, mechanical, marine and aerospace engineers. Researchers, developers, practitioners and academics in these disciplines will find the content useful. Short versions of the papers, intended to be concise but self-contained summaries of the full papers, are collected in the book, while the full versions of the papers are on the accompanying CD.

Microelectromechanical Systems

Author :
Publisher :
ISBN 13 :
Total Pages : 750 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Microelectromechanical Systems by :

Download or read book Microelectromechanical Systems written by and published by . This book was released on 2007 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dissertation Abstracts International

Author :
Publisher :
ISBN 13 :
Total Pages : 754 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Dissertation Abstracts International by :

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Conference Proceedings

Author : Society of Plastics Engineers. Technical Conference
Publisher :
ISBN 13 :
Total Pages : 1120 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Conference Proceedings by : Society of Plastics Engineers. Technical Conference

Download or read book Conference Proceedings written by Society of Plastics Engineers. Technical Conference and published by . This book was released on 1983 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Comprehensive Materials Finishing

Author : M.S.J. Hashmi
Publisher : Elsevier
ISBN 13 : 0128032502
Total Pages : 1467 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Comprehensive Materials Finishing by : M.S.J. Hashmi

Download or read book Comprehensive Materials Finishing written by M.S.J. Hashmi and published by Elsevier. This book was released on 2016-08-29 with total page 1467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finish Manufacturing Processes are those final stage processing techniques which are deployed to bring a product to readiness for marketing and putting in service. Over recent decades a number of finish manufacturing processes have been newly developed by researchers and technologists. Many of these developments have been reported and illustrated in existing literature in a piecemeal manner or in relation only to specific applications. For the first time, Comprehensive Materials Finishing, Three Volume Set integrates a wide body of this knowledge and understanding into a single, comprehensive work. Containing a mixture of review articles, case studies and research findings resulting from R & D activities in industrial and academic domains, this reference work focuses on how some finish manufacturing processes are advantageous for a broad range of technologies. These include applicability, energy and technological costs as well as practicability of implementation. The work covers a wide range of materials such as ferrous, non-ferrous and polymeric materials. There are three main distinct types of finishing processes: Surface Treatment by which the properties of the material are modified without generally changing the physical dimensions of the surface; Finish Machining Processes by which a small layer of material is removed from the surface by various machining processes to render improved surface characteristics; and Surface Coating Processes by which the surface properties are improved by adding fine layer(s) of materials with superior surface characteristics. Each of these primary finishing processes is presented in its own volume for ease of use, making Comprehensive Materials Finishing an essential reference source for researchers and professionals at all career stages in academia and industry. Provides an interdisciplinary focus, allowing readers to become familiar with the broad range of uses for materials finishing Brings together all known research in materials finishing in a single reference for the first time Includes case studies that illustrate theory and show how it is applied in practice

Smart Medical and Biomedical Sensor Technology

Author :
Publisher :
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Smart Medical and Biomedical Sensor Technology by :

Download or read book Smart Medical and Biomedical Sensor Technology written by and published by . This book was released on 2006 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

4M 2005 - First International Conference on Multi-Material Micro Manufacture

Author : Stefan Dimov
Publisher : Elsevier
ISBN 13 : 0080462553
Total Pages : 537 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis 4M 2005 - First International Conference on Multi-Material Micro Manufacture by : Stefan Dimov

Download or read book 4M 2005 - First International Conference on Multi-Material Micro Manufacture written by Stefan Dimov and published by Elsevier. This book was released on 2005-12-07 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: 4M 2005 - First International Conference on Multi-Material Micro Manufacture

Product/Process Fingerprint in Micro Manufacturing

Author : Guido Tosello
Publisher : MDPI
ISBN 13 : 3039210343
Total Pages : 274 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Product/Process Fingerprint in Micro Manufacturing by : Guido Tosello

Download or read book Product/Process Fingerprint in Micro Manufacturing written by Guido Tosello and published by MDPI. This book was released on 2019-05-31 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continuous miniaturization of products and the growing complexity of their embedded multifunctionalities necessitates continuous research and development efforts regarding micro components and related micro manufacturing technologies. Highly miniaturized systems, manufactured using a wide variety of materials, have found application in key technological fields, such as healthcare devices, micro implants, mobility, communications, optics, and micro electromechanical systems. Innovations required for the high-precision manufacturing of micro components can specifically be achieved through optimizations using post-process (i.e., offline) and in-process (i.e., online) metrology of both process input and output parameters, as well as geometrical features of the produced micro parts. However, it is of critical importance to reduce the metrology and optimization efforts, since process and product quality control can represent a significant portion of the total production time in micro manufacturing. To solve this fundamental challenge, research efforts have been undertaken in order to define, investigate, implement, and validate the so-called “product/process manufacturing fingerprint” concept. The “product manufacturing fingerprint” concept refers to those unique dimensional outcomes (e.g., surface topography, form error, critical dimensions, etc.) on the produced component that, if kept under control and within specifications, ensure that the entire micro component complies to its specifications. The “process manufacturing fingerprint” is a specific process parameter or feature to be monitored and controlled, in order to maintain the manufacture of products within the specified tolerances. By integrating both product and process manufacturing fingerprint concepts, the metrology and optimization efforts are highly reduced. Therefore, the quality of the micro products increases, with an obvious improvement in production yield. Accordingly, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on novel methodological developments and applications in micro- and sub-micro-scale manufacturing, process monitoring and control, as well as micro and sub-micro product quality assurance. Focus will be on micro manufacturing process chains and their micro product/process fingerprint, towards full process optimization and zero-defect micro manufacturing.

Encyclopedia of Microfluidics and Nanofluidics

Author : Dongqing Li
Publisher : Springer Science & Business Media
ISBN 13 : 0387324682
Total Pages : 2242 pages
Book Rating : 4.3/5 (873 download)

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Book Synopsis Encyclopedia of Microfluidics and Nanofluidics by : Dongqing Li

Download or read book Encyclopedia of Microfluidics and Nanofluidics written by Dongqing Li and published by Springer Science & Business Media. This book was released on 2008-08-06 with total page 2242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering all aspects of transport phenomena on the nano- and micro-scale, this encyclopedia features over 750 entries in three alphabetically-arranged volumes including the most up-to-date research, insights, and applied techniques across all areas. Coverage includes electrical double-layers, optofluidics, DNC lab-on-a-chip, nanosensors, and more.

Advances in Polymer Processing

Author : S Thomas
Publisher : Elsevier
ISBN 13 : 1845696425
Total Pages : 753 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Advances in Polymer Processing by : S Thomas

Download or read book Advances in Polymer Processing written by S Thomas and published by Elsevier. This book was released on 2009-05-30 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: Processing techniques are critical to the performance of polymer products which are used in a wide range of industries. Advances in polymer processing: From macro- to nano- scales reviews the latest advances in polymer processing, techniques and materials.Part one reviews the fundamentals of polymer processing with chapters on rheology, materials and polymer extrusion. Part two then discusses advances in moulding technology with chapters on such topics as compression, rotational and blow moulding of polymers. Chapters in Part three review alternative processing technologies such as calendaring and coating, foam processing and radiation processing of polymers. Part four discusses micro and nano-technologies with coverage of themes such as processing of macro, micro and nanocomposites and processing of carbon nanotubes. The final section of the book addresses post-processing technologies with chapters on online monitoring and computer modelling as well as joining, machining, finishing and decorating of polymers.With is distinguished editors and team of international contributors, Advances in polymer processing: From macro- to nano- scales is an invaluable reference for engineers and academics concerned with polymer processing. - Reviews the latest advances in polymer processing, techniques and materials analysing new challenges and opportunities - Discusses the fundamentals of polymer processing considering the compounding and mixing of polymers as well as extrusion - Assesses alternative processing technologies including calendaring and coating and thermoforming of polymers

Micro Injection Molding

Author : Tosello Guido
Publisher :
ISBN 13 : 9781523120215
Total Pages : pages
Book Rating : 4.1/5 (22 download)

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Book Synopsis Micro Injection Molding by : Tosello Guido

Download or read book Micro Injection Molding written by Tosello Guido and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hot Embossing

Author : Matthias Worgull
Publisher : William Andrew
ISBN 13 : 0815519745
Total Pages : 368 pages
Book Rating : 4.8/5 (155 download)

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Book Synopsis Hot Embossing by : Matthias Worgull

Download or read book Hot Embossing written by Matthias Worgull and published by William Andrew. This book was released on 2009-09-28 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an overview of replication technology for micro- and nanostructures, focusing on the techniques and technology of hot embossing, a scaleable and multi-purpose technology for the manufacture of devices such as BioMEMS and microfluidic devices which are expected to revolutionize a wide range of medical and industrial processes over the coming decade.The hot embossing process for replicating microstructures was developed by the Forschungszentrum Karlsruhe (Karlsruhe Institute of Technology) where the author is head of the Nanoreplication Group. Worgull fills a gap in existing information by fully detailing the technology and techniques of hot embossing. He also covers nanoimprinting, a process related to hot embossing, with examples of actual research topics and new applications in nanoreplication. - A practical and theoretical guide to selecting the materials, machinery and processes involved in microreplication using hot embossing techniques - Compares different replication processes such as: micro injection molding, micro thermoforming, micro hot embossing, and nanoimprinting - Details commercially available hot embossing machinery and components like tools and mold inserts