The goal of the book is to assist the designer in the development of parts that are functional, reliable, manufacturable, and aesthetically pleasing. Since injection molding is the most widely used manufacturing process for the production of plastic parts, a full understanding of the integrated design process presented is essential to achieving economic and functional design goals. Features over 425 drawings and photographs.
"Designing Plastic Parts for Assembly" provides an excellent tool for both seasoned part designers and novices to the field, facilitating cost effective design decisions and ensuring that the plastic parts and products will stand up under use. The detailed yet simplified discussion of material selection, manufacturing techniques, and assembly procedures will enable the reader to evaluate plastic materials and to adequately design plastic parts for assembly. The book describes good joint design and implementation, the geometry and nature of the component parts, the types of load involved, and other basic information necessary in order to work successfully in this field. Throughout, the treatment is practice-oriented and focused on everyday problems and situations. The 7th edition introduces a completely new chapter on overmolding and in-mold assembly, as well as a new chapter on bonding, including accompanying examples. Laser molding and ultrasonics coverage are also brought up to date, with illustrative case histories. Contents: - Understanding Plastic Materials - Understanding Safety Factors - Strength of Materials for Plastics - Nonlinear Considerations - Assembly Techniques for Plastics - Press Fitting - Living Hinges - Snap Fitting - Bonding - In-Mold Assembly.
The authoritative introduction to all aspects of plastics engineering — offering both academic and industry perspectives in one complete volume. Introduction to Plastics Engineering provides a self-contained introduction to plastics engineering. A unique synergistic approach explores all aspects of material use — concepts, mechanics, materials, part design, part fabrication, and assembly — required for converting plastic materials, mainly in the form of small pellets, into useful products. Thermoplastics, thermosets, elastomers, and advanced composites, the four disparate application areas of polymers normally treated as separate subjects, are covered together. Divided into five parts — Concepts, Mechanics, Materials, Part Processing and Assembly, and Material Systems — this inclusive volume enables readers to gain a well-rounded, foundational knowledge of plastics engineering. Chapters cover topics including the structure of polymers, how concepts from polymer physics explain the macro behavior of plastics, evolving concepts for plastics use, simple mechanics principles and their role in plastics engineering, models for the behavior of solids and fluids, and the mechanisms underlying the stiffening of plastics by embedded fibers. Drawing from his over fifty years in both academia and industry, Author Vijay Stokes uses the synergy between fundamentals and applications to provide a more meaningful introduction to plastics. Examines every facet of plastics engineering from materials and fabrication methods to advanced composites Provides accurate, up-to-date information for students and engineers both new to plastics and highly experienced with them Offers a practical guide to large number of materials and their applications Addresses current issues for mechanical design, part performance, and part fabrication Introduction to Plastics Engineering is an ideal text for practicing engineers, researchers, and students in mechanical and plastics engineering and related industries.
Hailed as a groundbreaking and important textbook upon its initial publication, the latest iteration of Product Design for Manufacture and Assembly does not rest on those laurels. In addition to the expected updating of data in all chapters, this third edition has been revised to provide a top-notch textbook for university-level courses in product design and manufacturing design. The authors have added a comprehensive set of problems and student assignments to each chapter, making the new edition substantially more useful. See what’s in the Third Edition: Updated case studies on the application of DFMA techniques Extended versions of the classification schemes of the features of products that influence the difficulty of handling and insertion for manual, high-speed automatic, and robot assembly Discussions of changes in the industry such as increased emphasis on the use of surface mount devices New data on basic manufacturing processes Coverage of powder injection molding Recognized as international experts on the re-engineering of electro-mechanical products, the methods and guidelines developed by Boothroyd, Dewhurst, and Knight have been documented to provide significant savings in the product development process. Often attributed with creating a revolution in product design, the authors have been working in product design manufacture and assembly for more than 25 years. Based on theory yet highly practical, their text defines the factors that influence the ease of assembly and manufacture of products for a wide range of the basic processes used in industry. It demonstrates how to develop competitive products that are simpler in configuration and easier to manufacture with reduced overall costs.
The Plastics Handbook provides everything important there is to know about plastics, comprehensively compiled in a compact and well-organized format. From material properties to machines, processing, and applications, the user will find detailed information that allows the successful implementation of new materials and technologies. This concise, competent, modern reference not only explains the basic facts and interrelationships, but also serves as a practical guide for engineers to help them succeed in today's challenging, global industrial world. Searching for specific materials, properties, or any other information is particularly easy, because the reader also has free access to the electronic version of the book. The 5th edition is comprehensively updated throughout, with a new clearer layout. Also now in full color! Contents: - Common Acronyms in Plastics Technology - Introduction (Economic Significance, Classification, Composition, Effects of Processing on Properties, Modifications of Plastic Materials) - Material Properties and Testing Methods - Plastic Processing Technologies - Plastic Materials - Additives, Fillers, and Fibers - Material Properties Overview
Introduction to Plastics Engineering provides a single reference covering the basics of polymer and plastics materials, and their properties, design, processing and applications in a practical way. The book discusses materials engineering through properties formulation, combining part design and processing to produce final products. This book will be a beneficial guide to materials engineers developing new formulations, processing engineers producing those formulations, and design and product engineers seeking to understand the materials and methods for developing new applications. The book incorporates material properties, engineering, processing, design, applications and sustainable and bio based solutions. Ideal for those just entering the industry, or transitioning between sectors, this is a quick, relevant and informative reference guide to plastics engineering and processing for engineers and plastics practitioners. - Provides a single unified reference covering plastics materials, properties, design, processing and applications - Offers end-to-end coverage of the industry, from formulation to part design, processing, and the final product - Serves as an ideal introductory book for new plastics engineers and students of plastics engineering - Provides a convenient reference for more experienced practitioners
"Designing with Plastics" is an indispensable tool for every engineer and designer working with plastic materials. It will assist in the development of plastic parts that are not only functional and esthetically pleasing but also manufacturable while meeting ever increasing end-use requirements. The short but concise introduction into the specific properties of this material class focuses on the practical needs of the designer and lays the foundation for the following in-depth discussion of part design suitable for production and the intended end-use application. Numerous detailed examples highlight practical tips and rules of thumb for successful part design. Content: - Structure and Properties - Properties of Generic Polymeric Materials - Physical Properties - Characteristic Values - Test Methods and Procedures - Geometrically Simple Structural Parts under Static Loads - Design and Material Considerations for Parts Subjected to Mechanical Loads - Designing for Production - Flexing Elements - Mechanical Fasteners - Ribbed Structures - Gear Wheels - Friction Bearings - Wheels and Rollers
Offers a blueprint for various stages of the manufacturing process. This handbook provides directions for solid and practical design, including a quick check of do's and don'ts as well as specific tips for developing the most producible design. It also includes the details needed to forecast a successful design project.
