Search Results: handbook-of-molded-part-shrinkage-and-warpage-plastics-design-library

Handbook of Molded Part Shrinkage and Warpage

Author: Jerry Fischer

Publisher: William Andrew

ISBN: 1455730572

Category: Technology & Engineering

Page: 292

View: 4208

How easy life would be if only moldings were the same size and shape as the mold. But they never are, as molders, toolmakers, designers and end users know only too well. Shrinkage means that the size is always different; warpage often changes the shape too. The effects are worse for some plastics than others. Why is that? What can you do about it? The Handbook of Molded Part Shrinkage and Warpage is the first and only book to deal specifically with this fundamental problem. Jerry Fischer’s Handbook explains in plain terms why moldings shrink and warp, shows how additives and reinforcements change the picture, sets out the effect of molding process conditions, and explains why you never can have a single ‘correct’ shrinkage value. It goes on to demonstrate how to alleviate the problem through careful design of the molded part and the mold, and by proper material selection. It also examines computer-aided methods of forecasting shrinkage and warpage. And most important of all, the Handbook gives you the data you need to work with. . Authoritative and rooted in extensive industrial experience, the expert guidance contained in this handbook offers practical understanding to novices, and new insights to readers already skilled in the art of injection molding and mold making. Contains the answers to common problems and detailed advice on how to control mold and post-mold shrinkage and warpage. Case Studies illustrate and enrich the text; Data tables provide the empirical data that is essential for success, but hard to come by.

Intelligent Optimization of Mold Design and Process Parameters in Injection Molding

Author: Mehdi Moayyedian

Publisher: Springer

ISBN: 3030033562

Category:

Page: N.A

View: 4588

Brydson's Plastics Materials

Author: Marianne Gilbert

Publisher: William Andrew

ISBN: 0323370225

Category: Technology & Engineering

Page: 892

View: 2916

Brydson's Plastics Materials, Eighth Edition, provides a comprehensive overview of the commercially available plastics materials that bridge the gap between theory and practice. The book enables scientists to understand the commercial implications of their work and provides engineers with essential theory. Since the previous edition, many developments have taken place in plastics materials, such as the growth in the commercial use of sustainable bioplastics, so this book brings the user fully up-to-date with the latest materials, references, units, and figures that have all been thoroughly updated. The book remains the authoritiative resource for engineers, suppliers, researchers, materials scientists, and academics in the field of polymers, including current best practice, processing, and material selection information and health and safety guidance, along with discussions of sustainability and the commercial importance of various plastics and additives, including nanofillers and graphene as property modifiers. With a 50 year history as the principal reference in the field of plastics material, and fully updated by an expert team of polymer scientists and engineers, this book is essential reading for researchers and practitioners in this field. Presents a one-stop-shop for easily accessible information on plastics materials, now updated to include the latest biopolymers, high temperature engineering plastics, thermoplastic elastomers, and more Includes thoroughly revised and reorganised material as contributed by an expert team who make the book relevant to all plastics engineers, materials scientists, and students of polymers Includes the latest guidance on health, safety, and sustainability, including materials safety data sheets, local regulations, and a discussion of recycling issues

Manufacturing of Natural Fibre Reinforced Polymer Composites

Author: Mohd Sapuan Salit,Mohammad Jawaid,Nukman Bin Yusoff,M. Enamul Hoque

Publisher: Springer

ISBN: 3319079441

Category: Nature

Page: 394

View: 1053

Natural fibre composite is an emerging material that has great potential to be used in engineering application. Oil palm, sugar palm, bagasse, coir, banana stem, hemp, jute, sisal, kenaf, roselle, rice husk, betul nut husk and cocoa pod are among the natural fibres reported to be used as reinforcing materials in polymer composites. Natural fibre composites were used in many industries such as automotive, building, furniture, marine and aerospace industries. The advantages of natural fibre composites include low cost, renewable, abundance, light weight, less abrasive and they are suitable to be used in semi or non-structural engineering components. Research on various aspects of natural fibre composites such as characterization, determination of properties and design have been extensively carried out. However, publications that reported on research of manufacture of natural fibre composites are very limited. Specifically, although manufacturing methods of components from natural fibre composites are similar to those of components from conventional fibre composites such as glass, carbon and Kevlar fibres, modification of equipment used for conventional fibre composites may be required. This book fills the gap of knowledge in the field of natural fibre composites for the research community. Among the methods reported that are being used to produce components from natural fibre composites include hand lay-up, compression moulding, filament winding, injection moulding, resin transfer moulding, pultrusion and vacuum bag moulding. This book is also intended to address some research on secondary processing such as machining and laser welding of natural fibre composites. It is hoped that publication of this book will provide the readers new knowledge and understanding on the manufacture of natural fibre composites.

Handbook of multilevel metallization for integrated circuits

materials, technology, and applications

Author: Syd R. Wilson,Clarence J. Tracy,John L. Freeman

Publisher: William Andrew

ISBN: N.A

Category: Technology & Engineering

Page: 887

View: 8262

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Material Selection for Thermoplastic Parts

Practical and Advanced Information

Author: Michel Biron

Publisher: William Andrew

ISBN: 0702062871

Category: Technology & Engineering

Page: 710

View: 434

As new applications are developed and plastics replace traditional materials in a widening spectrum of existing applications, the potential personal injury, property damage, financial and legal consequences of failure can be high. However, nearly half of plastics failure can be traced back to the original specification and selection of the material. This book gives engineers the data they need to make an informed decision about the materials they use in their products, imparting a thorough knowledge of the advantages and disadvantages of the various materials to choose from. The data also suggests other candidate materials which the reader may not have originally considered. More than 30,000 thermoplastics grades are grouped into circa. 300 subfamilies, within which over 20 properties are assessed. The abundance or scarcity of a material and its cost are also often important deciding factors. In this book, an economical overview of the plastics industry helps clarify the actual consumption and costs of thermoplastics including bioplastic, and the relationship of cost vs. performance is also examined for each thermoplastic subfamily. Immediate and long-term common properties are reviewed, including mechanical behavior, impact, thermal properties, and many more. Environmental considerations are also covered, including ease of recycling and sustainability. Helps engineers to implement a systematic approach to material selection in their work Includes more than 300 subfamilies of thermoplastic, and a wide range of properties including chemical resistance, thermal degradation, creep and UV resistance Evaluates cost/performance relations and environmental considerations

Injection Mold Design Engineering

Author: David O. Kazmer

Publisher: Carl Hanser Verlag GmbH Co KG

ISBN: 1569905711

Category: Technology & Engineering

Page: 553

View: 8338

This book provides a structured methodology and scientific basis for engineering injection molds. The topics are presented in a top-down manner, beginning with introductory definitions and the big picture before proceeding to layout and detailed design of molds. The book provides very pragmatic analysis with worked examples that can be readily adapted to real-world product design applications. It will help students and practitioners to understand the inner workings of injection molds and encourage them to think outside the box in developing innovative and highly functional mold designs. This new edition has been extensively revised with new content that includes more than 80 new and revised figures and tables, coverage of development strategy, 3D printing, in-mold sensors, and practical worksheets, as well as a completely new chapter on the mold commissioning process, part approval, and mold maintenance.

Processing and Fabrication of Advanced Materials XV

Proceedings from the 15th International Symposium

Author: T. S. Srivatsan,R. A. Varin

Publisher: Asm International

ISBN: 9780871708465

Category: Reference

Page: 634

View: 6056

This proceedings volume includes papers covering a broad selection of topics related to advanced materials processing and fabrication. Contents: Nonmetallic materials (4 papers) ¿ Advanced metallic alloys (6 papers) ¿ Materials for hydrogen storage and energy conversion (6 papers) ¿ Nanocrystalline and amorphous materials (6 papers) ¿ Nanometals and metal-matrix composites (6 papers) ¿ Composite materials (6 papers) ¿ Metals and composites (4 papers)

International Polymer Processing

The Journal of the Polymer Processing Society

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Polymers

Page: N.A

View: 1089

Fluoroelastomers Handbook

The Definitive User's Guide

Author: Jiri George Drobny,Albert L. Moore

Publisher: William Andrew

ISBN: 0815517262

Category: Technology & Engineering

Page: 373

View: 7935

Fluoroelastomers Handbook: The Definitive User's Guide and Databook is a comprehensive reference on fluoroelastomer chemistry, processing technology, and applications. This is a must-have reference for materials scientists and engineers in the automotive, aerospace, chemical, chemical process, and power generation industries. Fluoroelastomers meet rigorous performance requirements in harsh environments, enhancing reliability, safety, and environmental friendliness. Fluoroelastomers are growing as products of choice for critical components such as O-rings, hoses, and seals in hostile fluid and temperature conditions. The first part of this book is an overview of fluorocarbon elastomers, including descriptions of the nature of fluoroelastomers, properties of various compositions, developmental history, and major uses. The second part provides more details of fluoroelastomer technology, including monomer properties and synthesis, polymerization and production processes, cure systems, and processing methods. The third and last part covers fluid resistance of various fluoroelastomer families, major applications of fluoroelastomers, and safety and disposal.

Effect of Temperature and other Factors on Plastics and Elastomers

Author: Laurence W. McKeen

Publisher: William Andrew

ISBN: 0815516940

Category: Technology & Engineering

Page: 824

View: 963

This book is an update to the first edition compiled and published in 1990 by William Woishnis. A lot has changed in the field since 1990 and a lot has not changed. There are new plastic materials. There has been a huge turnover in ownership of plastics producing companies. There has been a lot of consolidation, which of course means discontinued products. Thus, this update is much more extensive than the usual "next edition." It has been reorganized from a chemistry point of view. Plastics of similar polymer types are grouped into nine chapters. Each of these chapters includes an introduction with a brief explanation of the chemistry of the polymers used in the plastics. An extensive first chapter has been added as an introduction that summarizes the chemistry of making polymers, the formulation of plastics, testing and test methods, and plastic selection. Most plastic products and parts are expected to be used in environments other than room temperature and standard humidity conditions. Chapters 2-10 are a databank that serves as an evaluation of plastics as they are exposed to varying operating conditions at different temperatures, humidity, and other factors. Over 900 graphs for more than 45 generic families of plastics are contained in these chapters. Chapter 11 contains extensive mechanical and electrical data in tabular form. The tables contain data on several thousand plastics. Similarly, Chapter 12 contains thermal data on several thousand plastics. Data from the first edition have only been removed if those products were discontinued, and many products were. Product names and manufacturers have been updated. • Detailed introductions of plastics properties, testing procedures, and principles of plastics design. • The only "databook" available on the effects of temperature and humidity conditions on plastics and elastomers. • More than 1,000 graphs and tables allow for easy comparison between products. • Covers more than 70 types of plastics, and summarizes the chemistry of each type.

Injection Molding Handbook

Author: D.V. Rosato,Marlene G. Rosato

Publisher: Springer Science & Business Media

ISBN: 1461545978

Category: Technology & Engineering

Page: 1460

View: 8079

This third edition has been written to thoroughly update the coverage of injection molding in the World of Plastics. There have been changes, including extensive additions, to over 50% of the content of the second edition. Many examples are provided of processing different plastics and relating the results to critiCal factors, which range from product design to meeting performance requirements to reducing costs to zero-defect targets. Changes have not been made that concern what is basic to injection molding. However, more basic information has been added concerning present and future developments, resulting in the book being more useful for a long time to come. Detailed explanations and interpretation of individual subjects (more than 1500) are provided, using a total of 914 figures and 209 tables. Throughout the book there is extensive information on problems and solutions as well as extensive cross referencing on its many different subjects. This book represents the ENCYCLOPEDIA on IM, as is evident from its extensive and detailed text that follows from its lengthy Table of CONTENTS and INDEX with over 5200 entries. The worldwide industry encompasses many hundreds of useful plastic-related computer programs. This book lists these programs (ranging from operational training to product design to molding to marketing) and explains them briefly, but no program or series of programs can provide the details obtained and the extent of information contained in this single sourcebook.

Flow Analysis of Injection Molds

Author: Peter Kennedy,Rong Zheng

Publisher: Carl Hanser Verlag GmbH Co KG

ISBN: 1569905223

Category: Technology & Engineering

Page: 380

View: 9604

Given the importance of injection molding as a process as well as the simulation industry that supports it, there was a need for a book that deals solely with the modeling and simulation of injection molding. This book meets that need. The modeling and simulation details of filling, packing, residual stress, shrinkage, and warpage of amorphous, semi-crystalline, and fiber-filled materials are described. This book is essential for simulation software users, as well as for graduate students and researchers who are interested in enhancing simulation. And for the specialist, numerous appendices provide detailed information on the topics discussed in the chapters. Contents: Part 1 The Current State of Simulation: Introduction, Stress and Strain in Fluid Mechanics, Material Properties of Polymers, Governing Equations, Approximations for Injection Molding, Numerical Methods for Solution Part 2 Improving Molding Simulation: Improved Fiber Orientation Modeling, Improved Mechanical Property Modeling, Long Fiber-Filled Materials, Crystallization, Effects of Crystallizations on Rheology and Thermal Properties, Colorant Effects, Prediction of Post-Molding Shrinkage and Warpage, Additional Issues of Injection-Molding Simulation, Epilogue Appendices: History of Injection-Molding Simulation, Tensor Notation, Derivation of Fiber Evolution Equations, Dimensional Analysis of Governing Equations, The Finite Difference Method, The Finite Element Method, Numerical Methods for the 2.5D Approximation, Three-Dimensional FEM for Mold Filling Analysis, Level Set Method, Full Form of Mori-Tanaka Model

Handbook of Plastic Optics

Author: Stefan Bäumer

Publisher: John Wiley & Sons

ISBN: 3527635459

Category: Science

Page: 308

View: 6224

A coherent overview of the current status of injection molded optics, describing in detail all aspects of plastic optics, from design issues to production technology and quality control. This updated second edition is supplemented by a chapter on the equipment and process of injection wells as well as a look at recent applications. The contributors, each one a leading expert in their discipline, have either a background in or strong ties to the industry, thus combining a large amount of practical experience. With its focus firmly set on practical applications, this is an indispensable reference for all those working in optics research and development.

The Science and Technology of Flexible Packaging

Multilayer Films from Resin and Process to End Use

Author: Barry A Morris

Publisher: William Andrew

ISBN: 0323243258

Category: Technology & Engineering

Page: 744

View: 6473

The Science and Technology of Flexible Packaging: Multilayer Films from Resin and Process to End Use provides a comprehensive guide to the use of plastic films in flexible packaging, covering scientific principles, properties, processes, and end use considerations. The book brings the science of multilayer films to the practitioner in a concise and impactful way, presenting the fundamental understanding required to improve product design, material selection, and processes, and includes information on why one material is favored over another for a particular application, or how the film or coating affects material properties. Detailed descriptions and analysis of the key properties of packaging films are provided from both an engineering and scientific perspective. End-use effects are also covered in detail, providing key insights into the way the products being packaged influence film properties and design. The book bridges the gap between key scientific literature and the practical challenges faced by the flexible packaging industry, providing essential scientific insights, best practice techniques, environmental sustainability information, and key principles of structure design to enable engineers and scientists to deliver superior products with reduced development time and cost. Provides essential information on all aspects of multilayer films in flexible packaging Aids in material selection and processing, shortening development times and delivering stronger products Bridges the gap between scientific principles and key challenges in the packaging industry, with practical explanations to assist practitioners in overcoming those challenges

Plastics Processing Data Handbook

Author: D.V. Rosato

Publisher: Springer Science & Business Media

ISBN: 9401096589

Category: Technology & Engineering

Page: 392

View: 4980

This comprehensive book provides guidelines for maximizing plastics proc essing efficiency in the manufacture of all types of products, using all types of plastics. A practical approach is employed to present fundamental, yet comprehensive, coverage of processing concepts. The information and data presented by the many tables and figures interrelate the different variables that affect injection molding, extrusion, blow molding, thermoforming, compression molding, reinforced plastics molding, rotational molding, re action injection molding, coining, casting, and other processes. The text presents a great number of problems pertaining to different phases of processing. Solutions are provided that will meet product per formance requirements at the lowest cost. Many of the processing variables and their behaviors in the different processes are the same, as they all in volve basic conditions of temperature, time, and pressure. The book begins with information applicable to all processes, on topics such as melt soft ening flow and controls; all processes fit into an overall scheme that re quires the interaction and proper control of systems. Individual processes are reviewed to show the effects of changing different variables to meet the goal of zero defects. The content is arranged to provide a natural progres sion from simple to complex situations, which range from control of a sin gle manual machine to simulation of sophisticated computerized processes that interface with many different processing functions.

Computer Modeling for Injection Molding

Simulation, Optimization, and Control

Author: Huamin Zhou

Publisher: John Wiley & Sons

ISBN: 0470602996

Category: Science

Page: 397

View: 992

This book covers a wide range of applications and uses of simulation and modeling techniques in polymer injection molding, filling a noticeable gap in the literature of design, manufacturing, and the use of plastics injection molding. The authors help readers solve problems in the advanced control, simulation, monitoring, and optimization of injection molding processes. The book provides a tool for researchers and engineers to calculate the mold filling, optimization of processing control, and quality estimation before prototype molding.

The Complete Part Design Handbook

For Injection Molding of Thermoplastics

Author: E. Alfredo Campo

Publisher: N.A

ISBN: 9781569903759

Category: Technology & Engineering

Page: 870

View: 5764

This indispensable, all inclusive reference guide to plastic part design is compiled with the product designer in mind, who is looking for more detailed information on plastic resins, the rules and geometries underlying their use in product design, and the advantages and limitations of their use in industrial applications. The designer will also find valuable advice on resin and tool selection and processing parameters that will allow fast and successful product development and manufacture. Thousands of hours of research and cross-referencing have gone into the completion of this work. In addition, the hands-on knowledge of a plastics expert with more than 35 years experience incorporated in this handbook makes it in invaluable tool for any product designer facing the challenges of our global plastics industry.

Handbook of Plastics Testing and Failure Analysis

Author: Vishu Shah

Publisher: John Wiley & Sons

ISBN: 0470100419

Category: Technology & Engineering

Page: 648

View: 4399

Written in easy-to-read and -use format, this book updates and revises its bestselling predecessor to become the most complete, comprehensive resource on plastics testing. This book has an emphasis on significance of test methods and interpretation of results. The book covers all aspects of plastics testing, failure analysis, and quality assurance - including chapters on identification analysis, failure analysis, and case studies. The book concludes with a substantial appendix with useful data, charts and tables for ready reference. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

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