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. Injection molding continues to be a core plastics manufacturing
process but now has competition from additive manufacturing for certain applications and
environmental concerns are in the spotlight. The 3rd edition addresses these issues in
particular with a new chapter on mold manufacturing strategy to provide an overview of the most
common machining and additive manufacturing processes with cost and time models to guide the
manufacturing strategy updated and simplified break-even cost models to assist in the mold
layout design (number of cavities and type of mold) vs. 3D printing a new section on
environmental concerns include mold design for recycled resins and updates to the
International Tolerance standards and the new technology and simulation sections.