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.
Applied Plastics Engineering Handbook: Processing, Materials, and Applications, Second Edition, covers both the polymer basics that are helpful to bring readers quickly up-to-speed if they are not familiar with a particular area of plastics processing and the recent developments that enable practitioners to discover which options best fit their requirements. New chapters added specifically cover polyamides, polyimides, and polyesters. Hot topics such as 3-D printing and smart plastics are also included, giving plastics engineers the information they need to take these embryonic technologies and deploy them in their own work. With the increasing demands for lightness and fuel economy in the automotive industry (not least due to CAFÉ standards), plastics will soon be used even further in vehicles. A new chapter has been added to cover the technology trends in this area, and the book has been substantially updated to reflect advancements in technology, regulations, and the commercialization of plastics in various areas. Recycling of plastics has been thoroughly revised to reflect ongoing developments in sustainability of plastics. Extrusion processing is constantly progressing, as have the elastomeric materials, fillers, and additives which are available. Throughout the book, the focus is on the engineering aspects of producing and using plastics. The properties of plastics are explained, along with techniques for testing, measuring, enhancing, and analyzing them. Practical introductions to both core topics and new developments make this work equally valuable for newly qualified plastics engineers seeking the practical rules-of-thumb they don't teach you in school and experienced practitioners evaluating new technologies or getting up-to-speed in a new field. Presents an authoritative source of practical advice for engineers, providing guidance from experts that will lead to cost savings and process improvements Ideal introduction for both new engineers and experienced practitioners entering a new field or evaluating a new technology Updated to include the latest technology, including 3D Printing, smart polymers, and thorough coverage of biopolymers and biodegradable plastics
This book includes many reference tables and graphics supplying valuable information for injection mold design and engineering. The book includes mold specification sheets and mold design/engineering for gates, cooling, sprues & runners, runner sizing, ejection, pullbacks & KOs, SPI KO patterns, clamp slots, venting, hydraulic cylinders, slides, alignment, O-rings, SHCSs, support plate & pillars, hot runner considerations, etc. Also included: mold design checklist, quoting & design direction, tips to best determine shrinkage values for X, Y & Z axis, mold steels and hardness, heat treatment and tempering data, thermal conductivity values, thermal expansion, plating, best surface treatments, surface finish tables, edm roughness table, updated list of common suppliers, and more. This new 2nd EDITION also includes selected additional reference pages from other APEBOOKS which are related to mold engineering
This book provides a simplified, practical, and innovative approach to understanding the design and manufacture of plastic products in the World of Plastics. The concise and comprehensive information defines and focuses on past, current, and future technical trends. The handbook reviews over 20,000 different subjects; and contains over 1,000 figures and more than 400 tables. Various plastic materials and their behavior patterns are reviewed. Examples are provided of different plastic products and relating to them critical factors that range from meeting performance requirements in different environments to reducing costs and targeting for zero defects. This book provides the reader with useful pertinent information readily available as summarized in the Table of Contents, List of References and the Index.
This book describes an effective framework for setting the right process parameters and new mold design to reduce the current plastic defects in injection molding. It presents a new approach for the optimization of injection molding process via (i) a new mold runner design which leads to 20 percent reduction in scrap rate, 2.5 percent reduction in manufacturing time, and easier ejection of injected part, (ii) a new mold gate design which leads to less plastic defects; and (iii) the introduction of a number of promising alternatives with high moldability indices. Besides presenting important developments of relevance academic research, the book also includes useful information for people working in the injection molding industry, especially in the green manufacturing field.
Eliminate the guesswork from critical mold aspects such as gate location, shape and size. And discover how to establish proper venting so you can prepare ideal mold venting - before the first shot is made. Both newcomers and experienced practitioners in the area of thermoplastics will benefit from its concise explanations of the methods and equipment used, the components necessary for smart mold design, a checklist for designing a mold, and the variety of finishes and textures available and how they are applied.
Annotation Injection moulding is one of the most commonly used processing technologies for plastics materials. Proper machine set up, part and mould design, and material selection can lead to high quality production. This review outlines common factors to check when preparing to injection mould components, so that costly mistakes can be avoided. This review examines the different types of surface defects that can be identified in plastics parts and looks at ways of solving these problems. Useful flow charts to illustrate possible ways forward are included. Case studies and a large b257 of figures make this a very useful report.
Plastics and rubber materials, or polymers, are increasingly the first choice of engineers when reliable, cost-effective performance and safety are essential. The volume of polymers used in the Western economy now exceeds that of metals, which requires today's engineering students to have a thorough grounding in the properties and applications of polymeric materials. The first chapters of Engineering with Polymers explain what polymers are, how they behave, and how articles are made from them. The authors then show how the standard engineering techniques of stress analysis, structures, fluid mechanics, heat transfer and design can be adopted or adapted to cover plastics and rubber materials. The book ends with chapters detailing interactions between processing and properties, and a description of a variety of approaches to designing plastics products, from practical advice to the use or further development of theoretical principles, backed up by examples and case studies. The book is aimed at mechanical engineering students and design engineers in industry and also at materials' and chemical engineers.
This outstanding reference presents an up-to-date account of investigations during the last10 years in the area of injection and compression molding of polymers.Injection and Compression Molding Fundamentals considers simulation andexperimentation of flow dynamics in the cavity and delivery system . . . discussesrheology and viscoelastic modeling ... clarifies fiber orientation ... delineates residualstresses and processing-property relationships in molded parts ... and details computeraideddesign and manufacture of the mold.In addition, the book highlights specific features and problems related to the molding ofthermoplastics, rubbers, and thermosets ... and reveals the current status of the sciencebasedtechnology related to injection and compression molding.The most detailed and authoritative reference of its type, Injection and CompressionMolding Fundamentals is an invaluable resource for plastics, mechanical, andchemical engineers; colloid, oil, and color chemists; polymer engineers and scientists;mold designers and manufacturers; rheologists; and materials scientists. The book willalso be of value for use in graduate-level courses in plastics, mechanical, chemical, andpolymer engineering, and in short courses and seminars offered by professional societies.
Provides reference information concerning the injection molding operation and each of its aspects. It examines considerable technological advancements, especially those in computer methods, that have been made since the second edition was published.