Robust Process Development and Scientific Molding - Theory and Practice
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| Verlag | Hanser Fachbuchverlag |
| Auflage | 2024 |
| Seiten | 442 |
| Format | 17,7 x 3,0 x 24,6 cm |
| Gewicht | 1175 g |
| Artikeltyp | Englisches Buch |
| EAN | 9781569909089 |
| Bestell-Nr | 56990908UA |
This book introduces the reader to the concepts of Scientific Molding and Scientific Processing for Injection Molding, geared towards developing a robust, repeatable, and reproducible (3Rs) molding process. It explains the underlying principles of polymer science: the properties that are important to injection molding and their application to molding process development. The effects of polymer morphology, thermal transitions, drying, and rheology on the injection molding process are explained in detail. The development of a robust molding process is broken down into two sections: the Cosmetic Process and the Dimensional Process. Scientific molding procedures to establish a 3R process are provided.The concept of Design of Experiments (DOEs) for and in injection molding is explained, giving insight into the cosmetic and dimensional process windows. A plan to release qualified molds into production with troubleshooting tips is also provided. Topics that impact a robust process such a s the use of regrind, mold cooling, and venting are also described.Readers will be able to utilize the knowledge gained from the book in their day-to-day operations immediately.This third edition includes a completely new subchapter covering melt preparation, as well as much additional, revised, and updated material throughout the book. The revisions are deeply informed by the author's long and ongoing experience as a trainer, resulting in improved ways to conduct a study, perform experiments, or explain a concept.
Leseprobe:
1 Introduction to Scientific Processing2 Properties of Polymers and Plastics That Influence Injection Molding3 Polymer Rheology4 Plastic Drying5 Common Plastic Materials and Additives6 Injection Molding and Molding Machines7 Scientific Processing, Scientific Molding, and Molding Parameters8 Introduction to Process Development9 Process Development Part 1: The Melt Preparation 19710 Process Development Part 2: The 6-Step Study - Exploring the CosmeticProcess11 Process Development Part 3: Exploring the Dimensional Process via Design of Experiments12 Mold Qualification Flowchart, Production Release, and Troubleshooting13 Role of Mold Cooling, Venting, and Regrind in Process Development14 Related Technologies and Topics15 Quality ConceptsAppendix A Materials Data SheetAppendix B Conversion Tables for Commonly Used Process ParametersAppendix C Water Flow TablesAppendix D Part Design ChecklistAppendix E Mold Design ChecklistAppendix F Mold Qualification ChecklistAppendix G Regrind Tables - Percentage of Regrind in Total ShotAppendix H Calculation of Melt DensityIndex
