Search Results: handbook-of-molded-part-shrinkage-and-warpage-plastics-design-library

Handbook of Molded Part Shrinkage and Warpage

Author: Jerry Fischer

Publisher: William Andrew

ISBN: 1455730572

Category: Technology & Engineering

Page: 292

View: 5850

How easy life would be if only moldings were the same size and shape as the mold. But they never are, as molders, toolmakers, designers and end users know only too well. Shrinkage means that the size is always different; warpage often changes the shape too. The effects are worse for some plastics than others. Why is that? What can you do about it? The Handbook of Molded Part Shrinkage and Warpage is the first and only book to deal specifically with this fundamental problem. Jerry Fischer’s Handbook explains in plain terms why moldings shrink and warp, shows how additives and reinforcements change the picture, sets out the effect of molding process conditions, and explains why you never can have a single ‘correct’ shrinkage value. It goes on to demonstrate how to alleviate the problem through careful design of the molded part and the mold, and by proper material selection. It also examines computer-aided methods of forecasting shrinkage and warpage. And most important of all, the Handbook gives you the data you need to work with. . Authoritative and rooted in extensive industrial experience, the expert guidance contained in this handbook offers practical understanding to novices, and new insights to readers already skilled in the art of injection molding and mold making. Contains the answers to common problems and detailed advice on how to control mold and post-mold shrinkage and warpage. Case Studies illustrate and enrich the text; Data tables provide the empirical data that is essential for success, but hard to come by.

Intelligent Optimization of Mold Design and Process Parameters in Injection Molding

Author: Mehdi Moayyedian

Publisher: Springer

ISBN: 3030033562


Page: N.A

View: 8413

Rapid.Tech – International Trade Show & Conference for Additive Manufacturing

Proceedings of the 13th Rapid.Tech Conference Erfurt, Germany, 14 – 16 June 2016

Author: Wieland Kniffka,Michael Eichmann,Gerd Witt

Publisher: Carl Hanser Verlag GmbH Co KG

ISBN: 3446450602

Category: Technology & Engineering

Page: 400

View: 2557

3D-Druck und generative Fertigung – Was sind die spannendsten Neuentwicklungen Die Fachmesse und Anwendertagung Rapid.Tech richtet sich gezielt an Anwender und Entwickler generativer Fertigungstechnologien. Mit Teilnehmern aus über 20 Ländern ist sie eine der wichtigsten europäischen Informationsveranstaltungen zum Thema. Einzigartiger Bestandteil der Rapid.Tech ist ein hochkarätiger Kongress mit Anwendertagung für neue Technologien und Fachforen zu den Themen Wissenschaft, Werkzeuge, Luftfahrt und Medizintechnik. Der vorliegende Tagungsband enthält alle Beiträge des Kongresses und ist somit eine unverzichtbare Informationsquelle für alle, die über die neuesten Entwicklungen bei dieser Zukunftstechnologie auf dem Laufenden bleiben möchten.

Brydson's Plastics Materials

Author: Marianne Gilbert

Publisher: William Andrew

ISBN: 0323370225

Category: Technology & Engineering

Page: 892

View: 3139

Brydson's Plastics Materials, Eighth Edition, provides a comprehensive overview of the commercially available plastics materials that bridge the gap between theory and practice. The book enables scientists to understand the commercial implications of their work and provides engineers with essential theory. Since the previous edition, many developments have taken place in plastics materials, such as the growth in the commercial use of sustainable bioplastics, so this book brings the user fully up-to-date with the latest materials, references, units, and figures that have all been thoroughly updated. The book remains the authoritiative resource for engineers, suppliers, researchers, materials scientists, and academics in the field of polymers, including current best practice, processing, and material selection information and health and safety guidance, along with discussions of sustainability and the commercial importance of various plastics and additives, including nanofillers and graphene as property modifiers. With a 50 year history as the principal reference in the field of plastics material, and fully updated by an expert team of polymer scientists and engineers, this book is essential reading for researchers and practitioners in this field. Presents a one-stop-shop for easily accessible information on plastics materials, now updated to include the latest biopolymers, high temperature engineering plastics, thermoplastic elastomers, and more Includes thoroughly revised and reorganised material as contributed by an expert team who make the book relevant to all plastics engineers, materials scientists, and students of polymers Includes the latest guidance on health, safety, and sustainability, including materials safety data sheets, local regulations, and a discussion of recycling issues

Handbuch der präparativen anorganischen Chemie

Author: Georg Brauer

Publisher: N.A

ISBN: 9783432878232

Category: Chemistry, Inorganic

Page: 2113

View: 8096

International Polymer Processing

The Journal of the Polymer Processing Society

Author: N.A

Publisher: N.A


Category: Polymers

Page: N.A

View: 4370

Fluoroelastomers Handbook

The Definitive User's Guide

Author: Jiri George Drobny,Albert L. Moore

Publisher: William Andrew

ISBN: 0815517262

Category: Technology & Engineering

Page: 373

View: 1684

Fluoroelastomers Handbook: The Definitive User's Guide and Databook is a comprehensive reference on fluoroelastomer chemistry, processing technology, and applications. This is a must-have reference for materials scientists and engineers in the automotive, aerospace, chemical, chemical process, and power generation industries. Fluoroelastomers meet rigorous performance requirements in harsh environments, enhancing reliability, safety, and environmental friendliness. Fluoroelastomers are growing as products of choice for critical components such as O-rings, hoses, and seals in hostile fluid and temperature conditions. The first part of this book is an overview of fluorocarbon elastomers, including descriptions of the nature of fluoroelastomers, properties of various compositions, developmental history, and major uses. The second part provides more details of fluoroelastomer technology, including monomer properties and synthesis, polymerization and production processes, cure systems, and processing methods. The third and last part covers fluid resistance of various fluoroelastomer families, major applications of fluoroelastomers, and safety and disposal.

Processing and Fabrication of Advanced Materials XV

Proceedings from the 15th International Symposium

Author: T. S. Srivatsan,R. A. Varin

Publisher: Asm International

ISBN: 9780871708465

Category: Reference

Page: 634

View: 4927

This proceedings volume includes papers covering a broad selection of topics related to advanced materials processing and fabrication. Contents: Nonmetallic materials (4 papers) ¿ Advanced metallic alloys (6 papers) ¿ Materials for hydrogen storage and energy conversion (6 papers) ¿ Nanocrystalline and amorphous materials (6 papers) ¿ Nanometals and metal-matrix composites (6 papers) ¿ Composite materials (6 papers) ¿ Metals and composites (4 papers)

Effect of Temperature and other Factors on Plastics and Elastomers

Author: Laurence W. McKeen

Publisher: William Andrew

ISBN: 0815516940

Category: Technology & Engineering

Page: 824

View: 9054

This book is an update to the first edition compiled and published in 1990 by William Woishnis. A lot has changed in the field since 1990 and a lot has not changed. There are new plastic materials. There has been a huge turnover in ownership of plastics producing companies. There has been a lot of consolidation, which of course means discontinued products. Thus, this update is much more extensive than the usual "next edition." It has been reorganized from a chemistry point of view. Plastics of similar polymer types are grouped into nine chapters. Each of these chapters includes an introduction with a brief explanation of the chemistry of the polymers used in the plastics. An extensive first chapter has been added as an introduction that summarizes the chemistry of making polymers, the formulation of plastics, testing and test methods, and plastic selection. Most plastic products and parts are expected to be used in environments other than room temperature and standard humidity conditions. Chapters 2-10 are a databank that serves as an evaluation of plastics as they are exposed to varying operating conditions at different temperatures, humidity, and other factors. Over 900 graphs for more than 45 generic families of plastics are contained in these chapters. Chapter 11 contains extensive mechanical and electrical data in tabular form. The tables contain data on several thousand plastics. Similarly, Chapter 12 contains thermal data on several thousand plastics. Data from the first edition have only been removed if those products were discontinued, and many products were. Product names and manufacturers have been updated. • Detailed introductions of plastics properties, testing procedures, and principles of plastics design. • The only "databook" available on the effects of temperature and humidity conditions on plastics and elastomers. • More than 1,000 graphs and tables allow for easy comparison between products. • Covers more than 70 types of plastics, and summarizes the chemistry of each type.

Werkstoffkunde der Kunststoffe

Author: Georg Menges

Publisher: Walter de Gruyter

ISBN: 3110881829

Category: Science

Page: 95

View: 4197

Handbook of Thermoplastic Elastomers

Author: Jiri George Drobny

Publisher: N.A


Category: Elastomers

Page: 404

View: 1264

Der gleichläufige Doppelschneckenextruder

Grundlagen, Technologie, Anwendungen

Author: Klemens Kohlgrüber

Publisher: Carl Hanser Verlag GmbH Co KG

ISBN: 3446452354

Category: Technology & Engineering

Page: 842

View: 2140

Alles zum gleichläufigen Doppelschneckenextruder Bei der Herstellung von Kunststoffen, insbesondere bei der Aufbereitung und Verarbeitung bis zum Fertigprodukt werden Extruder eingesetzt, wobei der gleichläufige Doppelschneckenextruder eine dominante Rolle spielt. Aber auch in anderen Industriezweigen, z. B. der Kautschuk- und Lebensmittelindustrie und zunehmend in der Pharmaindustrie kommen die Gleichdrallschnecken vielfältig zum Einsatz. Eine multifunktionale Maschine Das Fachbuch gibt umfassenden Einblick in die verfahrens- und maschinentechnischen Grundlagen und legt großen Fokus auf Praxisbeispiele. Meist sind die Schnecken modular aufgebaut und können damit sehr flexibel an veränderte Aufgabenstellung und Produkteigenschaften angepasst werden. Für die optimale Auslegung eines Doppelschneckenextruders sind vertiefte Kenntnisse über die Maschine und den Prozess erforderlich. Ein Praxisbuch für Einsteiger und Profis Die zweite Auflage entstand unter Mitwirkung vieler Fachautoren von renommierten Firmen und Hochschulen. Alle inzwischen erfolgten Weiterentwicklungen wurden berücksichtigt. Die zweite Auflage wurde durchgehend neu bearbeitet, ist deutlich erweitert, komplett in Farbe und in neuem Layout. Mit Zusatzmaterial auf der Website des Herausgebers: Videos, Bilder, Beispiel-Aufgaben, Rechentools EXTRA: E-Book inside

Additive Fertigungsverfahren

Additive Manufacturing und 3D-Drucken für Prototyping - Tooling - Produktion

Author: Andreas Gebhardt

Publisher: Carl Hanser Verlag GmbH Co KG

ISBN: 3446452362

Category: Technology & Engineering

Page: 736

View: 3432

Die aktualisierte 5. Auflage dieses Standardwerks beschreibt die, noch anhaltende, Entwicklung und Verbreitung der Generativen Fertigungstechnik über alle Branchen und viele Anwendergruppen hinweg. Leistungsfähige Production Printer arbeiten in der Industrie und Fabber, kleine, preiswerte und meist selbst zu bauende 3D-Drucker, erschließen die Generative Fertigung auch für Privatleute und an entlegenen Orten. Seriöse Journale und Tageszeitungen machen mit Druckern Erfolgsgeschichten auf. Drucker sind in aller Munde. Daneben wird die Technik sukzessive verbessert. Die Prozesse werden stabiler und vor allem reproduzierbar. Eine wirkliche Massenproduktion von Einzelteilen gelingt in einzelnen Branchen und beginnt sich durchzusetzen. Neu in der 5. Auflage sind: - Aktualisierungen: Firmen, Maschinen und Material; Anwendungsbeispiele - Erweiterungen: Fabbertechnologie, Do It Yourself Drucker EXTRA: E-Book inside

Flame Hardening

Author: Hans Wilhelm Grönegress

Publisher: Springer Science & Business Media

ISBN: 3642867219

Category: Technology & Engineering

Page: 64

View: 2297

This book intended for shop use tries to familiarize the reader with the peculiari ties of a hardening method which due to its many advantages is now in use,many shops. A general knowledge of the principles of hardening and heat treating is presumed. Introduction 1. The name of the process. Flame hardening is a method derived from the old quench hardening and is used for the surface hardening of heat treatable steels. Flame hardening is so named in analogy to flame cutting as the use of a flame is a distinctive feature of this process as opposed to the use of a furnace. 2. Characteristics of flame hardening. In flame hardening the area to be 6 hardened is heated with a burner of large heat capacity (approx. 0.5 · 10 kcaljhr/ meter of flame lengths or 50,000 BTUfhr/inch of flame length) supplied with a mixture of fuel gas and oxygen. The hardening temperature is thus reached in so short a time at the surface that a heat jam is created, that is, more heat is supplied to the surface than can be dissipated to the interior of the workpiece. As the querr ehing takes place immediately after the heating the penetration of the heat to greater depth is prevented and only the outer layer subject to wear is hardened. The core of the workpiece remains unaffected by this heat treatment in cantrast to the other hardening methods where the entire piece is through heated in a furnace.

Integrative Produktionstechnik für Hochlohnländer

Author: Christian Brecher

Publisher: Springer-Verlag

ISBN: 9783642206931

Category: Technology & Engineering

Page: 1177

View: 8432

Auch wenn die industrielle Fertigung von Produkten in Hochlohnländern wie Deutschland gefährdet ist, gibt es viele Beispiele für Unternehmen, denen es gelingt, durch ihre Produktion den Wettbewerb zu dominieren – u. a. indem sie Verschwendung durch synchronisierende Integrativität minimieren und sich höchst adaptiv verhalten. In dem Buch werden die wissenschaftlichen Ergebnisse des Aachener Exzellenzclusters „Integrative Produktionstechnik für Hochlohnländer“ dargestellt und deren erfolgreiche Umsetzung in die industrielle Praxis beschrieben.

Materials Selection in Mechanical Design: Das Original mit Übersetzungshilfen


Author: Michael F. Ashby

Publisher: Spektrum Akademischer Verlag

ISBN: 9783827417626

Category: Technology & Engineering

Page: 648

View: 1834

Das englischsprachige, weltweit anerkannte Standardwerk zur Werkstoffauswahl - als neuer Buchtyp speziell für die Bedürfnisse deutschsprachiger Leser angepasst! Der Zusatznutzen, den dieses Buch bietet ist das Lesen und Lernen im englischen Original zu erleichtern und gleichzeitig in die spezielle Fachterminologie einzuführen und zwar durch: - Übersetzungshilfen in der Randspalte zur Fachterminologie und zu schwierigen normalsprachlichen Ausdrücken - Ein zweisprachiges Fachwörterbuch zum raschen Nachschlagen

Injection Molding Handbook

Author: D.V. Rosato,Marlene G. Rosato

Publisher: Springer Science & Business Media

ISBN: 1461545978

Category: Technology & Engineering

Page: 1460

View: 9697

This third edition has been written to thoroughly update the coverage of injection molding in the World of Plastics. There have been changes, including extensive additions, to over 50% of the content of the second edition. Many examples are provided of processing different plastics and relating the results to critiCal factors, which range from product design to meeting performance requirements to reducing costs to zero-defect targets. Changes have not been made that concern what is basic to injection molding. However, more basic information has been added concerning present and future developments, resulting in the book being more useful for a long time to come. Detailed explanations and interpretation of individual subjects (more than 1500) are provided, using a total of 914 figures and 209 tables. Throughout the book there is extensive information on problems and solutions as well as extensive cross referencing on its many different subjects. This book represents the ENCYCLOPEDIA on IM, as is evident from its extensive and detailed text that follows from its lengthy Table of CONTENTS and INDEX with over 5200 entries. The worldwide industry encompasses many hundreds of useful plastic-related computer programs. This book lists these programs (ranging from operational training to product design to molding to marketing) and explains them briefly, but no program or series of programs can provide the details obtained and the extent of information contained in this single sourcebook.

Simulationen mit NX

Kinematik, FEM, CFD, EM und Datenmanagement. Mit zahlreichen Beispielen für NX 9

Author: Reiner Anderl,Peter Binde

Publisher: Carl Hanser Verlag GmbH Co KG

ISBN: 3446439528

Category: Technology & Engineering

Page: 439

View: 5629

Dieses Standardwerk in nun dritter Auflage vermittelt die notwendigen Grundlagen, um mit dem System NX der Firma Siemens einfache bis komplexe Simulationen durchzuführen. Es wendet sich an Konstrukteure, Berechnungsingenieure und Studenten technischer Fachrichtungen. Auf Basis von NX 9 werden in je einem Kapitel folgende Themen behandelt: Motion-Simulation (MKS), Design-Simulation FEM (Nastran), Advanced Simulation (FEM, CFD sowie EM) sowie das Management von Berechnungs- und Simulationsdaten (Teamcenter for Simulation). Nach knappen theoretischen Einführungen schließen an jedes Kapitel praktische Lernaufgaben mit steigendem Schwierigkeitsgrad an. Grundlage fast aller Übungsbeispiele ist das CAD-Modell des legendären Opel Rak2. Neu in dieser Auflage hinzugekommen ist das Thema elektromagnetische Analysen (EM). Außerdem werden alle Beispiele aus dem Buch anhand des neuen Ribbon-Interface von NX 9 dargestellt. Auf der beiliegenden DVD finden Sie die CAD- und Berechnungsdaten sämtlicher Übungsbeispiele. Die Übungen können mit den NX-Versionen 8, 8.5, 9 und voraussichtlich auch späteren Versionen durchgeführt werden.

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