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Author : Matthew Sheldon Bickford
Publisher : Unknown
Page : 254 pages
File Size : 43,9 Mb
Release : 2012-08-04
Category : Decoration and ornament, Architectural
ISBN : 0985077719
A guide to making furniture mouldings using traditional moulding planes.
Author : Maw-Ling Wang,Rong-Yeu Chang,Chia-Hsiang (David) Hsu
Publisher : Carl Hanser Verlag GmbH Co KG
Page : 532 pages
File Size : 53,9 Mb
Release : 2018-06-11
Category : Technology & Engineering
ISBN : 9781569906200
This practical introductory guide to injection molding simulation is aimed at both practicing engineers and students. It will help the reader to innovate and improve part design and molding processes, essential for efficient manufacturing. A user-friendly, case-study-based approach is applied, enhanced by many illustrations in full color. The book is conceptually divided into three parts: Chapters 1–5 introduce the fundamentals of injection molding, focusing the factors governing molding quality and how molding simulation methodology is developed. As they are essential to molding quality, the rheological, thermodynamic, thermal, mechanical, kinetic properties of plastics are fully elaborated in this part, as well as curing kinetics for thermoset plastics. Chapters 6–11 introduce CAE verification of design, a valuable tool for both part and mold designers toward avoiding molding problems in the design stage and to solve issues encountered in injection molding. This part covers design guidelines of part, gating, runner, and cooling channel systems. Temperature control in hot runner systems, prediction and control of warpage, and fiber orientation are also discussed. Chapters 12–17 introduce research and development in innovative molding, illustrating how CAE is applied to advanced molding techniques, including co-/bi-Injection molding, gas-/water-assisted injection molding, foam injection molding, powder injection molding, resin transfer molding, and integrated circuit packaging. The authors come from the creative simulation team at CoreTech System (Moldex3D), winner of the PPS James L. White Innovation Award 2015. Several CAE case study exercises for execution in the Moldex3D software are included to allow readers to practice what they have learned and test their understanding.
Author : Suhas Kulkarni
Publisher : Carl Hanser Verlag GmbH Co KG
Page : 390 pages
File Size : 50,8 Mb
Release : 2017-01-16
Category : Technology & Engineering
ISBN : 9781569905876
The book introduces the reader to the concepts of Scientific Molding and Scientific Processing for Injection Molding, geared towards developing a robust, repeatable, and reproducible (3Rs) molding process. The effects of polymer morphology, thermal transitions, drying, and rheology on the injection molding process are explained in detail. The development of a robust molding process is broken down into two sections and is described as the Cosmetic Process and the Dimensional Process. Scientific molding procedures to establish a 3R process are provided. The concept of Design of Experiments (DOEs) for and in injection molding is explained, providing an insight into the cosmetic and dimensional process windows. A plan to release qualified molds into production with troubleshooting tips is also provided. Topics that impact a robust process such as the use of regrind, mold cooling, and venting are also described. Readers will be able to utilize the knowledge gained from the book in their day-to-day operations immediately. The second edition includes a completely new chapter on Quality Concepts, as well as much additional material throughout the book, covering fountain flow, factors affecting post mold shrinkage, and factor selections for DOEs. There are also further explanations on several topics, such as in-mold rheology curves, cavity imbalances, intensification ratios, gate seal studies, holding time optimization of hot runner molds, valve gated molds, and parts with large gates. A troubleshooting guide for common molded defects is also provided.
Author : K. Potter
Publisher : Springer Science & Business Media
Page : 260 pages
File Size : 49,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789400900219
Resin Transfer Moulding provides readers with the information needed to design, develop and manufacture high components via an RTM route and provides a framework which readers can use to place their endeavours within an industrial context. Readers are presented with information to give them an understanding of the scientific and theoretical background to RTM, thereby giving them an understanding of the major constraints on the process. This background is then built on by an in-depth consideration of the technological details that are required to utilise the process effectively. To achieve all this the book presents detailed sections on all the essential topics in RTM finishing with a case study. Resin Transfer Moulding simplifies the introduction of RTM technology into organizations wishing to benefit from the opportunities it brings, by gathering together all the necessary information in a single volume.
Author : Ottmar Brandau
Publisher : William Andrew
Page : 374 pages
File Size : 42,7 Mb
Release : 2016-08-10
Category : Technology & Engineering
ISBN : 9780323462938
Stretch Blow Molding, Third Edition, provides the latest on the blow molding process used to produce bottles of the strength required for carbonated drinks. In this updated handbook, Ottmar Brandau introduces the technology of stretch blow molding, explores practical aspects of designing and running a production line, and looks at practical issues for quality control and troubleshooting. As an experienced engineer, manager, and consultant, Brandau’s focus is on optimizing the production process, improving quality, and reducing cycle time. In this new edition, the author has thoroughly reviewed the content of the book, providing updates on new developments in stretch blow molding, including neck sizes, new equipment and processes, and the economics of the process. The book is a thoroughly practical handbook which provides engineers and managers with the toolkit to improve production and engineering aspects in their own businesses, allowing them to save money, increase output, and improve competitiveness by adopting new technologies. Provides knowledge and understanding of the latest technological and best practice developments in stretch blow molding Includes money saving, practical strategies to optimize the production process, improve quality, and reduce cycle times Provides a guide to the training of operators, as well as tactics on how to troubleshoot when products are faulty, productivity is low, or machinery is not operating as expected
Author : Alastair Pennycook
Publisher : Routledge
Page : 176 pages
File Size : 48,8 Mb
Release : 2010-04-05
Category : Language Arts & Disciplines
ISBN : 9781136932786
Language as a Local Practice addresses the questions of language, locality and practice as a way of moving forward in our understanding of how language operates as an integrated social and spatial activity. By taking each of these three elements – language, locality and practice – and exploring how they relate to each other, Language as a Local Practice opens up new ways of thinking about language. It questions assumptions about languages as systems or as countable entities, and suggests instead that language emerges from the activities it performs. To look at language as a practice is to view language as an activity rather than a structure, as something we do rather than a system we draw on, as a material part of social and cultural life rather than an abstract entity. Language as a Local Practice draws on a variety of contexts of language use, from bank machines to postcards, Indian newspaper articles to fish-naming in the Philippines, urban graffiti to mission statements, suggesting that rather than thinking in terms of language use in context, we need to consider how language, space and place are related, how language creates the contexts where it is used, how languages are the products of socially located activities and how they are part of the action. Language as a Local Practice will be of interest to students on advanced undergraduate and post graduate courses in Applied Linguistics, Language Education, TESOL, Literacy and Cultural Studies.
Author : Tim Peierls,Brian Goetz,Joshua Bloch,Joseph Bowbeer,Doug Lea,David Holmes
Publisher : Pearson Education
Page : 428 pages
File Size : 45,7 Mb
Release : 2006-05-09
Category : Computers
ISBN : 9780132702256
Threads are a fundamental part of the Java platform. As multicore processors become the norm, using concurrency effectively becomes essential for building high-performance applications. Java SE 5 and 6 are a huge step forward for the development of concurrent applications, with improvements to the Java Virtual Machine to support high-performance, highly scalable concurrent classes and a rich set of new concurrency building blocks. In Java Concurrency in Practice, the creators of these new facilities explain not only how they work and how to use them, but also the motivation and design patterns behind them. However, developing, testing, and debugging multithreaded programs can still be very difficult; it is all too easy to create concurrent programs that appear to work, but fail when it matters most: in production, under heavy load. Java Concurrency in Practice arms readers with both the theoretical underpinnings and concrete techniques for building reliable, scalable, maintainable concurrent applications. Rather than simply offering an inventory of concurrency APIs and mechanisms, it provides design rules, patterns, and mental models that make it easier to build concurrent programs that are both correct and performant. This book covers: Basic concepts of concurrency and thread safety Techniques for building and composing thread-safe classes Using the concurrency building blocks in java.util.concurrent Performance optimization dos and don'ts Testing concurrent programs Advanced topics such as atomic variables, nonblocking algorithms, and the Java Memory Model
Author : Anonim
Publisher : Rex Bookstore, Inc.
Page : 100 pages
File Size : 49,6 Mb
Release : 2024-05-11
Category : Electronic
ISBN : 9712309835
Author : Frank Czerwinski
Publisher : Springer Science & Business Media
Page : 592 pages
File Size : 45,7 Mb
Release : 2007-12-07
Category : Technology & Engineering
ISBN : 9780387725284
The objective of this book, being the first one on magnesium injection molding, is to treat both the scientific background and the technological aspects as they are understood at present. All aspects of material development, manufacturing and engineering are covered. The book provides a single source of information covering the interdisciplinary field of net shape forming of magnesium alloys. It reflects a unique blend of science and industrial practice.
Author : Roy J Crawford
Publisher : Smithers Rapra
Page : 244 pages
File Size : 41,7 Mb
Release : 2012-07-02
Category : Science
ISBN : 9781847359247
Rotational moulding (also called rotomoulding or rotocasting), is a low pressure, high temperature manufacturing process that offers a very competitive alternative to blow moulding, thermoforming and injection moulding for the manufacture of hollow plastic parts. It offers designers the chance to produce relatively stress-free articles, with uniform wall thickness and potentially complex shapes. This second edition of the very popular Practical Guide to Rotational Moulding describes the basic aspects of the process and the latest state-of-the-art developments in the industry. It is completely revised and is extensively illustrated.This guide will be of interest both to students of polymer processing and those who work with rotational moulding equipment.
Author : Christopher Schwarz
Publisher : Unknown
Page : 0 pages
File Size : 41,6 Mb
Release : 2023-09
Category : Electronic
ISBN : 1954697155
Author : Joseph F. Engelberger
Publisher : Springer Science & Business Media
Page : 291 pages
File Size : 44,5 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781468471205
THE REAL THING by Isaac Asimov Back in 1939, when I was still a teenager, I began to write (and publish) a series of stories about robots which, for the first time in science fiction, were pictured as having been deliberately engineered to do their job safely. They were not intended to be creaky Gothic menaces, nor outlets for mawkish sentiment. They were simply well-designed machines. Beginning in 1942, I crystallized this notion in what I called 'The Three Laws of Robotics' and, in 1950, nine of my robot stories were collected into a book, I, Robot. I did not at that time seriously believe that I would live to see robots in action and robotics becoming a booming industry .... Yet here we are, better yet, I am alive to see it. But then, why shouldn't they be with us? Robots fulfil an important role in industry. They do simple and repetitive jobs more steadily, more reliably, and more uncomplainingly than a human being could - or should. Does a robot displace a human being? Certainly, but he does so at a job that, simply because a robot can do it, is beneath the dignity of a human being; a job that is no more than mindless drudgery. Better and more human jobs can be found for human beings - and should.
Author : Jehuda Greener,Reinhold Wimberger-Friedl
Publisher : Hanser Publications
Page : 354 pages
File Size : 53,9 Mb
Release : 2006
Category : Injection molding of plastics
ISBN : UOM:39015064862843
One of the key aspects of the production of high precision components is the need to meet extremely tight dimensional tolerances, typically in the submicron range, and maintain these tolerances over the practical lifetimes of the molded articles. In addition, as many of the precision components are utilized in various optoelectronic systems and devices, control of optical and electrical properties is often crucial. The strict control of dimensional and electro-optical properties requires a systematic reexamination of the conventional injection-molding process with special consideration of its impact on the dimensions and electro-optical characteristics of the molded article. This volume examines precision injection molding from different perspectives, covering materials, process and hardware aspects of the technology, with special emphasis on the dimensional integrity and stability of the molded components. Special topics covered in this volume include: dimensional stability of molded plastics, models for warpage development, compact disc molding, process control, crystallization phenomena in injection molding, micro-molding and microfluidics.
Author : Nick Brooks
Publisher : Crowood
Page : 451 pages
File Size : 52,7 Mb
Release : 2013-12-21
Category : Crafts & Hobbies
ISBN : 9781847977236
The scope and potential of mouldmaking and casting is fascinating, and makes it one of the most exciting processes available to today's craftsmen. Its opportunities have been developed and expanded further by a range of new methods and materials only recently made available to the domestic market. Aimed equally at the student with little pre-existing knowledge and the professional wishing to further their skill base, this book provides an invaluable learning and reference tool for the studio or workshop of any artist, model maker or designer. Covers: jesmonite mould making and casting, bioresin casting, life moulding silicone from the body, large-scale clay press moulding, embedding in clear resin, clay slip casting, plas-ti-shim moulding, and finishing. Supported by step-by-step sequences and full descriptions of traditional processes as well as new methods, it is illustrated throughout with 212 colour photographs.
Author : Kathy Triplett
Publisher : Lark Books
Page : 168 pages
File Size : 40,8 Mb
Release : 2000
Category : Crafts & Hobbies
ISBN : 1579901840
Written for the general reader with an interest in ceramics, Handbuilt Ceramics is a big, colorful, and complete how-to manual for shaping clay without a potter’s wheel. Features 8 projects, complete with materials lists, clear step-by-step instructions, and detailed “how-to” color photos.