Handbook of Molded Part Shrinkage and Warpage

Rating:
Summary: Simple and Informative
Review: Simple to read and conveys everything that you want to know about part shrinkage and warpage. Systematicaly reviews the causes for shrinkage and warpage like a fish-bone diagram, starting with material factors and moving to effect of fillers and reinforcement, effect of processing conditions, effect of design and so on. Very helpful giude.

Rating:
Summary: Shrinkage and Warpage
Review: The author covers systematically the subject of shrinkage and warpage of plastic parts made by injection molding. First he defines both and lists factors causing them. In the next part of the book, he deals with controlling mold and post-mold shrinkage and warpage in a great detail, including troubleshooting. Another important topic covered is the computer-aided analysis (CAA). The author discusses the capabilities and limitations of CAA and its applications as a tool for predicting what will happen in the mold and to the molding. A considerable attention is given to case studies using ample illustrations and thorough analysis. One full chapter contains data, such as tables, charts and figures for different polymers unfilled and filled, effects of various process parameters, pressure volume temperature (PVT) curves for several major plastics, general shrinkage characteristics and comparative mold shrinkage values for a great number of plastic materials. There are two appendices, one containing conversion factors and equivalents, the other listing abbreviations, acronyms and material names. Glossary, references and bibliography are also included. The book will be a valuable addition to the library of those, who design parts, molds and processes as well as of those who run the production.