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Micro Injection Molding

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Micro Injection Moulding

Micro Injection Moulding Book
Author : Cécile Jeggy
Publisher : Presses univ. de Louvain
Release : 2004
ISBN : 9782930344553
Language : En, Es, Fr & De

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Book Description :

Micro-injection moulding is a new process, and as such it has not been thoroughly investigated until now. The peculiarities related to the three dimensional aspect of the cavity and the very small length and time scales at stake make it a very specific technology compared to conventional injection moulding. The aim of this thesis is to pave the way for micro-injection moulding modelling with a special emphasis on micro-cavity filling. Besides giving insight into the process, this work demonstrates the importance of visco-elastic effects and investigates further related issues. The different steps adopted in this work are the following ones: first an extensive review of the process is proposed, followed by a reflection on micro-cavity filling and polymer behaviour which ends up with the choice of the Giesekus model as an appropriate viscoelastic model for some polymers used in this process. A chapter dedicated to polymer characterization conducted on PC Lexan HF11110R, a micro-injection suited amorphous material, shows that the Newtonian viscosity is very low. In this case, the model admissibility from a mathematical and thermodynamic point of view is not guaranteed. This admissibility is the object of a chapter which provides an analysis for the Giesekus model completed with the PC Lexan material parameters. A further mathematical consequence of a vanishing Newtonian viscosity is that the number of inlet boundary conditions to be prescribed for the extra-stress tensor is reduced to 4 instead of 6 in case of a non-vanishing Newtonian viscosity. A specific numerical scheme to tackle this problem is proposed along with a theta-splitting based method which allows us to separate the viscous and visco-elastic effects in the governing equations and to treat subsequently a modified Stokes sub-problem and a transport sub-problem. Finally, a micromixer design and prototyping is presented as an application of this promising process.

Micro Injection Molding

Micro Injection Molding Book
Author : Guido Tosello
Publisher : Carl Hanser Verlag GmbH Co KG
Release : 2018-08-06
ISBN : 1569906548
Language : En, Es, Fr & De

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Book Description :

"Micro Injection Molding" meets the need for a dedicated book dealing exclusively with micro injection molding and overcoming the challenges of managing and processing polymer materials at ultra-small scales. Micro injection molding is the primary process for the mass production of polymer components with critical dimensions in the sub-millimeter range; however, it is not just a simple downscaling of conventional injection molding, and specific material-process-product interactions must be understood in order to achieve near zero-defect net-shape micro molded products. Micro molding is typically associated with ultra-high accuracy and superior process capabilities. Micro molded products have dimensional tolerances down to the single-digit micrometer range and surface finish with roughness from the sub-micrometer down to a few nanometers range. Micro and nano-structured tool surfaces are reproduced with very high replication fidelity onto the polymer products. Micro injection molding is highly suitable for the manufacture of multifunctional micro components such as micro implants, microfluidic systems, polymer micro optical elements, and micro mechanical systems. This book provides engineers, project managers, researchers, consultants, and other professionals involved in precision polymer processing and micro manufacturing with a comprehensive, up-to-date, and detailed treatment of the main topics related to micro molding, from material and process technology to tooling, to key-enabling technologies, and multimaterial process variations. Contents: • Part 1 – Polymer Materials and Process Micro Technology: micro injection molding machines technology; micro molding process monitoring and control; polymer materials structure and properties in micro injection molding parts; surface replication in micro injection molding • Part 2 – Tooling Technologies for Micro Mold Making: micro machining technologies for micro injection mold making; ultra-precision machining technologies for micro injection mold making; surface treatment of mold tools in micro injection molding • Part 3 – Micro Molding Key-Enabling Technologies: vacuum-assisted micro injection molding; modeling and simulation of micro injection molding; metrological quality assurance in micro injection molding; additive manufacturing for micro tooling and micro part rapid prototyping • Part 4 – Multimaterial Micro Processing: micro powder injection molding; multimaterial micro injection molding

Development of Mini Micro Injection Moulding Machine

Development of Mini Micro Injection Moulding Machine Book
Author : Daelami Aminuddin
Publisher :
Release : 2012
ISBN :
Language : En, Es, Fr & De

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Book Description :

The project is to develop a mini micro injection moulding machine. This study consists of three stages which are design concept, fabrication process, and assembly process of the mini micro injection molding that will capable to run similarly as the real industries conventional micro injection molding machine. For the design concepts, two to three injection molding mechanism is designed, compared and choose the best design that can match the requirement of the mini micro injection machine. After the design has been decided, fabrication process will take place. In this project, it is important to define and organize the best and fastest method that suitable to fabricate the machine. Assembly processes need to be done to complete the machine. It consist of assemble the two unit of injection machine which are injection unit and clamping unit. For the last stage, in order to test and function the machine, we need to make it capable to melt the resin plastic and the injection plunger can inject the molten plastic in to the mould cavity through the nozzle.

Comprehensive Materials Finishing

Comprehensive Materials Finishing Book
Author : Saleem Hashmi
Publisher : Elsevier
Release : 2016-08-29
ISBN : 0128032502
Language : En, Es, Fr & De

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Book Description :

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 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

Micromanufacturing Engineering and Technology

Micromanufacturing Engineering and Technology Book
Author : Yi Qin
Publisher : William Andrew
Release : 2010-07-02
ISBN : 9780815519805
Language : En, Es, Fr & De

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Book Description :

This book presents applicable knowledge of technology, equipment and applications, and the core economic issues of micromanufacturing for anyone with a basic understanding of manufacturing, material, or product engineering. It explains micro-engineering issues (design, systems, materials, market and industrial development), technologies, facilities, organization, competitiveness, and innovation with an analysis of future potential. The machining, forming, and joining of miniature / micro-products are all covered in depth, covering: grinding/milling, laser applications, and photo chemical etching; embossing (hot & UV), injection molding and forming (bulk, sheet, hydro, laser); mechanical assembly, laser joining, soldering, and packaging. • Presents case studies, material and design considerations, working principles, process configurations, and information on tools, equipment, parameters and control • Explains the many facets of recently emerging additive / hybrid technologies and systems, incl: photo-electric-forming, liga, surface treatment, and thin film fabrication • Outlines system engineering issues pertaining to handling, metrology, testing, integration & software • Explains widely used micro parts in bio / medical industry, information technology and automotive engineering. • Covers technologies in high demand, such as: micro-mechanical-cutting, lasermachining, micro-forming, micro-EDM, micro-joining, photo-chemical-etching, photo-electro-forming, and micro-packaging

International Conference on Mechanics and Materials Engineering ICMME 2014

International Conference on Mechanics and Materials Engineering  ICMME 2014  Book
Author : N.A
Publisher : DEStech Publications, Inc
Release : 2014-06-18
ISBN : 1605951773
Language : En, Es, Fr & De

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Book Description :

The conference aims to provide an excellent international academic forum for all the researchers, practitioner, students and teachers in related fields to share their knowledge and results in theory, methodology and application on mechanics and materials engineering. ICMME2014 features unique mixed topics of Mechanics, Materials Science and Materials Processing Technology, Emerging materials and other related ones. The ICMME2014 proceeding tends to collect the most up-to-date, comprehensive, and worldwide state-of-art knowledge on mechanics and materials engineering. All the accepted papers have been submitted to strict peer-review by 2–4 expert referees, and selected based on originality, significance and clarity for the purpose of the conference. The conference program is extremely rich, profound and featuring high-impact presentations of selected papers and additional late-breaking contributions. We sincerely hope that the conference would not only show the participants a broad overview of the latest research results on related fields, but also provide them a significant platform for academic connection and exchange.

MEMS NEMS Nano Technology

MEMS NEMS Nano Technology Book
Author : Xiao Hao Wang
Publisher : Trans Tech Publications Ltd
Release : 2011-06-30
ISBN : 3038135038
Language : En, Es, Fr & De

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Book Description :

Volume is indexed by Thomson Reuters CPCI-S (WoS). This book brings together over 153 peer-reviewed papers, grouped into 6 chapters: Micro-/Nano-Fabrication and Measurement Technologies, Micro-Sensors and Actuators, Microfluidic Devices and Systems, MEMS/NENS and Applications, Nano-Material Research / Nanotubes / Nanowire Devices, Micropower Technology, Theories in Micro-/Nano-Technologies. Most of the papers are authored by Chinese researchers, and the volume thus offers a good overview of the research on MEMS and nano-technology being conducted in China. The work will be of great interest to researchers, graduate students and engineers who are working in the fields of MEMS and nano-technology.

Injection Molding

Injection Molding Book
Author : Musa R. Kamal,Avram I. Isayev
Publisher : Carl Hanser Verlag GmbH Co KG
Release : 2012-11-12
ISBN : 3446433732
Language : En, Es, Fr & De

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Book Description :

This book attempts to survey the state of the science and technology of the injection molding process. It represents a comprehensive, balanced mix of practical and theoretical aspects for a wide range of injection molding applications. The authors of the 21 chapters are experts and leaders in their respective areas of specialization in the injection molding field. While it is not possible to cover all aspects of such a dynamic growing field, we hope that the reader will find sufficient information and background to become acquainted, at various levels of depth, with key components of the science and technology of injection molding. Contents: Injection Molding: Introduction and General Background Injection Molding Machines, Tools, and Processes The Plasticating System for Injection Molding Machines Non-Conventional Injection Molds Gas Assisted Injection Molding Water Injection Techniques (WIT) Flow Induced Fiber Micro-Structure in Injection Molding of Fiber Reinforced Materials Injection Foam Molding Powder Metal Injection Molding Micro Injection Molding Internal Visualization of Mold Cavity and Heating Cylinder Injection Molding Control Optimal Design for Injection Molding Development of Injection Molding Simulation Three-Dimensional Injection Molding Simulation Viscoelastic Instabilities in Injection Molding Evolution of Structural Hierarchy in Injection Molded Semicrystalline Polymers Modeling Aspects of Post-Filling Steps in Injection Molding Volumetric and Anisotropic Shrinkage in Injection Moldings of Thermoplastics Three-Dimensional Simulation of Gas-Assisted and Co-Injection Molding Processes Co-Injection Molding of Polymers

Frontiers in Materials Science

Frontiers in Materials Science Book
Author : B. Raj
Publisher : Universities Press
Release : 2005
ISBN : 9788173715075
Language : En, Es, Fr & De

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Book Description :

This volume presents contributions by a galaxy of eminent scientists and technologists from the world over in broad spectrum of areas in materials science, providing a global perspective on complex issues of current concern and the direction of research in these areas.

Micro Nano Replication

Micro   Nano Replication Book
Author : Shinill Kang
Publisher : John Wiley & Sons
Release : 2012-04-03
ISBN : 0470392134
Language : En, Es, Fr & De

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Book Description :

This book is an introduction to the fundamentals and processes for micro and nano molding for plastic components. In addition to the basics, the book covers applications details and examples. The book helps both students and professionals to understand and work with the growing tools of molding and uses for micro and nano-sized plastic parts. Provides a comprehensive presentation on fundamentals and practices of manufacturing for micro / nano sized plastics partsCovers a relatively new but fast-growing field that is impacting any industry using plastic parts in their products (electronics, tele.

Optics Design and Precision Manufacturing Technologies

Optics Design and Precision Manufacturing Technologies Book
Author : Guo Fan Jin,Wing Bun Lee,Chi Fai Cheung,Suet To
Publisher : Trans Tech Publications Ltd
Release : 2007-12-06
ISBN : 3038131903
Language : En, Es, Fr & De

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Book Description :

The aim of this collection was to provide an exciting forum for the exchange of the latest research findings and developments in the fields of optical design, advanced optics manufacturing technology and optical metrology. Approximately 250 papers from over 70 institutes and high-tech organizations in 13 countries were submitted, from which 235 papers were selected for publication in this collection.

21st Symposium on Composites

21st Symposium on Composites Book
Author : Axel Herrmann
Publisher : Trans Tech Publications Ltd
Release : 2017-07-03
ISBN : 3035731985
Language : En, Es, Fr & De

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Book Description :

The “21st Symposium on Composites” covered a wide range of composite-related topics including polymers, metal and ceramic composites, hybrid structures and laminates, coatings, manufacturing technologies, testing and simulation, structural health monitoring, biocomposites and recycling technologies. This conference was organized by “Gemeinschaftsausschuss Verbundwerkstoffe (GAV)” within “Deutsche Gesellschafft für Materialkunde e.V. (DGM)“ in cooperation with the University of Bremen. The attendants from academia and industry presented and discussed their latest research results and developments related to different kinds of modern composites.

Hot Embossing

Hot Embossing Book
Author : Matthias Worgull
Publisher : William Andrew
Release : 2009-09-28
ISBN : 9780815519744
Language : En, Es, Fr & De

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Book Description :

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

Progress on Advanced Manufacture for Micro Nano Technology 2005

Progress on Advanced Manufacture for Micro Nano Technology 2005 Book
Author : Wunyuh Jywe,Chieh Li Chen,Kuang Chao Fan,R.F. Fung,S.G. Hanson,Wen-Hsiang Hsieh,Chaug Liang Hsu,You Min Huang,Yunn Lin Hwang,Gerd Jäger,Yeau Ren Jeng,Wen Lung Li,Yunn Shiuan Liao,Chien Chang Lin,Zong Ching Lin,Cheng Kuo Sung,Ching Huan Tzeng
Publisher : Trans Tech Publications Ltd
Release : 2006-01-15
ISBN : 3038130559
Language : En, Es, Fr & De

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Book Description :

This is a time of newly emerging research topics in manufacturing technologies such as MEMS/Nano-Technology, Photo-Electric Devices, Precision Mechanical, Semiconductor and Optico-Mechatronic Manufacturing Technologies as well as Advanced Manufacturing and Automation Technology. The objective of this book is to provide a timely opportunity for the manufacturing community to present its newest research results, exchange ideas and become familiar with new trends and directions in the above manufacturing fields. Volume is indexed by Thomson Reuters CPCI-S (WoS).