Injection Molds

The Cost Analysis of Plastic Injection Molds is a complete step-by-step guide of the different stages of the cost estimation process. In addition, this book highlights the applicable considerations needed during the selection of plastic injection molds. This book is recommended for those searching for a straightforward understanding of attaining the final cost of a plastic injection mold. Readers looking to learn and/or improve their understanding of the technical and financial considerations to assess a cost efficient selection of a plastic injection mold will find this book a valuable resource of information. This book was born with the expectation of closing the gap between technical and non-technical professionals, who are facing the challenge of understanding the final price for a cost effective plastic injection mold.

The original edition of Injection Molds proved to be an invaluable aid for everyone involved in the design and construction of injection molds. This new edition represents a fully revised, expanded, and up-to-date version of this popular guide. It incorporates the latest advances, such as the advent of computer-aided engineering, which have revolutionized the field, but it is written with the added perspective provided by years of experience in mold making and design. A general introduction familiarizes the reader with basic design details, including the types of injection molds, runners and gates, temperature control, types of ejectors, standard components and specialized designs, material varieties, and so forth. This is followed by over 100 examples that illustrate the types of molds described. These are presented according to classification: standard molds (two-plate, split-cavity, stripper-plate, and three-plate molds), stack molds, hot-runner molds, cold-runner molds, and special-design molds. The various hot-runner systems and the large molds that have gained in importance have been given special attention. Like the first edition, this book is a valuable resource that belongs in the library of every mold maker. It covers almost every problem likely to be encountered in the process, with a wealth of practical tips and proven shortcuts. The tested designs offered here are shown in full drawings, with detailed descriptions.

Economic success in the plastics processing industry depends on the quality, precision, and reliability of its most common tool: the injection mold. Consequently, misjudgments in design and mistakes in the manufacturing of molds can result in grave consequences. This comprehensive handbook for the design and manufacture of injection molds covers all aspects of how to successfully make injection molds from a practical as well as from a theoretical point of view. It should serve as an indispensable reference work for everyone engaged in mold making. "...an example of how books should be written ... will be used by molders, mold designers and mold makers and will become a standard." (Polymer News) Contents: · Materials for Injection Molds · Mold Making Techniques · Estimating Mold Costs · The Injection Molding Process · Design of Runner Systems · Design of Gates · Venting of Molds · Heat Exchange System · Shrinkage · Mechanical Design · Shifting of Cores · Ejection · Alignment and Changing of Molds · Computer-Aided Mold Design and Construction · Maintenance of Injection Molds · Measuring in Injection Molds · Temperature Controllers · Mold Standards · Correction of Molding Defects · Special Processes - Special Molds

This is a serious book that covers everything you will need to know to start the most affordable overseas Plastic injection molding project. The book tells you where to go, what to do, and what to ask for to get your molds built for less than $500, molds that would cost $5K-$10K in USA or even China. This knowledge is not available anywhere else. You don't need any prior knowledge about injection molding, or outsourcing, anyone can do this.

This book provides a vision and structure to finally synergize all the engineering disciplines that converge in the mold design process. 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" mold design applications. It should 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. Contents: · Introduction to mold functions, types, and components · Review of design for injection molding · Cost estimation and optimization · Mold layout design including cavity layout, sizing, and materials selection · Cavity, runner system, and gating analysis and design · Cooling system analysis and design · Venting, shrinkage, and warpage analysis and strategies · Ejection force analysis and ejection system designs · Stress and deflection analysis with structural system designs · A survey of advanced mold designs

"Understanding Injection Molds" opens up the entire subject of injection mold technology, including numerous special procedures, in a well-grounded and practical way. It is specifically intended for beginners, young professionals, business owners, and engineering students. The chapters are clearly structured and easy to understand. The book is designed so that it provides a complete basic knowledge of injection molds in chronological order as well as day-to-day guidance and advice. The numerous color figures facilitate a rapid understanding of the content, which is especially helpful to the beginner who wants to learn about injection molds quickly. In the forefront of the description are thermoplastic molds. Divergent processes for thermoset or elastomer molds are explained at the end of each chapter. This book captures the current state of the art, and is written by authors who are specialists in the field. The second edition has been updated and improved throughout.