Bøger udgivet af Hanser Publications

Opens up the entire subject of injection mold technology, including numerous special procedures, in a well-grounded and practical way. 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.

Now in its third edition, this is the first book to shed light on the critical role the melt delivery system plays in successful injection molding. This successful book will give you an immediate leg up by reducing mold commissioning times, increasing productivity, improving customer satisfaction, and achieving quality goals such as Six Sigma.

Powder bed-based additive manufacturing with polymers (PBF-P) has a special position in the world of 3D printing. On the one hand, the components are manufactured without support structures, and on the other hand, the property profile of the components is similar to that of series components, as is also known from injection molding, but with clear advantages in terms of component complexity.In laser sintering (LS), individual component layers are fused with the aid of suitable laser radiation. In recent years, LS components have gained widespread use in industrial applications, so that today one can already speak of an established technology. Nevertheless, there are still many hurdles for LS to overcome in the future in order to free itself from the status of a niche technology. Material diversity and industry-compliant, quality-assurance measures are among the challenges to be mentioned here.To this end, the second edition of this book sheds light on the current state of the art in terms of machine technology and process flow, and specifically on the requirements for the materials used. In addition, the following topics are presented: - Implementation of LS in industrial process chains- Status of international standardization- Innovations in the field of LS materials- Properties of LS components- Selected application examplesThe second edition has been updated throughout; in particular, the material and machine specifications have been extensively revised.

Designing the perfect mold is probably the most challenging task in plastics processing, especially in injection molding. The mold determines the quality, performance, and the profitability of a plastic part. Neither modern computer technology nor sophisticated CAE soft ware can substitute the experience of the practicing mold engineer. This is why the "Gastrow" is so special to plastics engineers: 130 mold designs are presented in this extensively revised edition of the great classic in mold making. Each of the case studies was actually built, tested, and run successfully in production. The book is written by practitioners, describing problem solving in the design and the manufacture of injection molds. The wealth of information includes rules of thumb, design details, and practical tips invaluable for everyone involved in this field.

In a few short years, this has become the established reference for tool makers, heat treaters, and engineers seeking step-by-step "recipes" for properly heat treating a wide range of tool steels, plus practical information about machinability, shock resistance, wear, and extending tool life. Now, the completely revised and expanded second edition of this best-selling title is available. It has been extensively updated and includes the following significant additions: an entirely new chapter on the popular powdered tool steel CPM 10V; a thorough section on carburizing thoroughly describes the process and its benefits; a section on cryogenic treatment which has been completely rewritten to describe the theory and process; and a comprehensive glossary of related terms. As in the first edition, valuable tables of properties, attributes, qualities and shortcomings of popular tool steels are also included.

This book addresses traditional polymer processing as well as the emerging technologies associated with the plastics industry in the 21st century and combines engineering modeling aspects with computer simulation of realistic polymer processes. This book provides a polymer processing background to engineering students and practicing engineers. It is a three-part textbook written for a two-semester polymer processing series in mechanical and chemical engineering. The first and second part of the book are designed for a senior- to graduate-level course, introducing polymer processing, and the third part is for a graduate course on simulation in polymer processing. Throughout the book, many applications are presented in form of examples and illustrations. These also serve the practicing engineer as a guide when determining important parameters and factors during the design process or when optimizing a process. Examples are presented throughout the book, and problems and solutions are available.

This book unites the two sides of additive manufacturing: 1) the technical aspect of 3D printing of very different materials and 2) the disruptive consequences for value chains between producers, intermediaries, and customers due to modern business models. This is because 3D printing breaks with many existing business models: companies take over functions from their previous suppliers (following the "do-it-yourself" trend), intermediaries lose their livelihood (so-called "disintermediation"), manufacturers move their production to decentralized locations (e.g., retailers, car dealerships, or hospitals, so-called "decentralized production"), and (end) customers become much more intensive "prosumers" than marketing (as creator of this term) could ever imagine.The business models of many existing companies from very different industries are becoming toxic, i.e., threatening their very existence, as in logistics and warehousing, industry, services, retail, or customer service. Conversely, there are also many opportunities for modern, existence-securing business models, which the book discusses in more detail. In this way, this book not only shows to a broad range of readers the dangers of disruptive 3D printing technology, but also offers solution approaches and procedural models for identifying new economic livelihoods and competitive advantages. Thanks to the collaboration of the two authors, a profound knowledge of already existing references and management models can be drawn upon.

The goal of the book is to assist the designer in the development of parts that are functional, reliable, manufacturable, and aesthetically pleasing. Since injection molding is the most widely used manufacturing process for the production of plastic parts, a full understanding of the integrated design process presented is essential to achieving economic and functional design goals. Features over 425 drawings and photographs.

Polymers reinforced with discontinuous fibers have wide-ranging important applications such as in automotive parts and business machines. The flow that occurs during processing of these materials creates a complex but repeatable pattern of fiber orientation, which plays a key role in achieving the desirable mechanical properties these materials can offer. The primary focus of this unique book is fiber orientation: how to describe it mathematically, how to measure it experimentally, and how to predict it using the models used in commercial software. It also covers the description, measurement, and modeling of fiber length, another important variable that can be predicted by commercial software. The connection between fiber orientation and mechanical properties is explained, as is the relationship between fiber orientation and rheological properties in the fluid state. "Fundamentals of Fiber Orientation" focuses on the models used in current engineering practice, but also discusses a few topics from current research that could transition to engineering practice soon.Aimed at principally practicing engineers, this book teaches readers the fundamentals they need to understand data, set up meaningful simulations, and interpret results. Engineering graduate students who are embarking on research in this area will also find this book to be a valuable resource. Contents:IntroductionDescribing Fiber Orientation and Fiber LengthMeasuring Fiber Orientation and LengthFlow Orientation of Single FibersFlow Orientation of Groups of FibersSuspension Rheology and Flow-Orientation CouplingFiber Length Degradation during ProcessingMechanical Properties and OrientationCurrent and Future TrendsAppendices

Successful coloration of plastics is a challenging exercise, requiring deep understanding of chemical, physical, and technological factors, as well as national and international regulations. Customer and regulatory demands are often very high, concerning toxicity, environmental factors, color specification/matching, stability, and cost, among others. This book enables the reader to identify the right color preparation for a particular product application, accounting for material and design.With many processing tips for the practitioner, this book enables the efficient production of successful colored plastic products. It is the ideal companion to colorists, chemists, chemical engineers, laboratory technicians, engineers, engineering technicians, designers, and product developers who work with plastics, as well as an excellent introduction to the subject for students and their teachers.

Plastics production comprises the main process steps 'synthesis (reaction)', 'preparation/compounding' at the raw material manufacturer and compounder, and 'processing' (shaping into semi-finished or finished products). In this handbook, the central middle step, preparation and compounding, is discussed.

An injection mold is the heart of any plastics molding workcell. Understanding the principles of an injection mold design and its importance is fundamental to the success of the product. This book takes the reader through the process of conceptualizing and designing an injection mold that will produce the desired plastic part.

Industrial processes involving handling of solid raw materials are highly dependent on our understanding of the fundamental characteristics and properties of the starting solid materials, as well as whether or not the related process hardware and operation are properly designed and optimized. This is true of almost all plastics manufacturing processes since particulate solids handling is the most elementary processing step. This book provides a broad understanding of powder technology and the significance of particulate solid characteristics that are applicable to plastics manufacturing processes. It focuses on the particular characteristics of solid materials relevant to plastics manufacturing processes. Applications of engineering principles based on the selected solid characteristics which illustrate the uniqueness of the subject are also included. The useful and practical information within offers engineers solutions to otherwise unclear problems commonly encountered in industry. The selected examples of research investigations provided should also inspire readers to formulate further fundamental as well as applied research studies on the inter- and intra-relationship between powder technology and plastics processing technology. Contents:- Introduction- Polymers, Additives, and Processing- Fundamental Parameters of Powder Characteristics- Solid-Solid Mixing- Storage and Discharge of Particulate Solids- Pneumatic Conveying of Particulate Solids- Gas Fluidization- Interparticle Forces- Effects of Particle Characteristics on Rheological Properties of Polymeric Melts

Demonstrates the influence and mutual interaction of the parameters involved in the production of fiber composite components. The book gives an overview of the current state of prepreg technology generation and development, as well as their variations and trends.

Plastic materials continue to play a vital and growing role in packaging applications. It is thus more important than ever that all involved in the packaging industry command a basic understanding of the properties of the common packaging plastics. This highly regarded book provides just that to students and packaging professionals alike.

This highly practical troubleshooting guide solves problems at the machine systematically and quickly. Drawing on a wealth of hands-on experience from the authors, who have built strong reputations in the field, the book is structured by type of problem/solution.

Plastics flammability is a highly important consideration in many industries, including construction, mass transportation, and electrical and electronic equipment. This comprehensive handbook is unrivalled as the definitive source of information on the reaction of plastics to fire, as well as on the relevant regulations and testing methods.

In the rubber industry, one of the most widely practiced processes is the reinforcement of rubber by particulate fillers, especially carbon black and silica. This book covers the most important theoretical and practical aspects of rubber reinforcement.

Describes, in clear understandable language, the three main disciplines of adhesion technology: the mechanics of the adhesive bond; the chemistry of adhesives; and surface science. Some knowledge of physical and organic chemistry is assumed, but no familiarity with the science of adhesion is required.

Serves as a key guide for designers, organizations, governments, companies, or anybody else with an interest in a sustainable future. Ecodesign is explained for what it is and how it fits with the necessity for a sustainable planet; it is shown to be a coherent and practical process; and the impact of the ecodesign approach is elaborated.

Shows the true and often-underestimated market potential of plastics recycling, with analysis from economic, ecological, and technical perspectives. The book is aimed at both technical and non-technical readers, including decision makers in material suppliers, plastic product manufacturers, governmental agencies, educators, and anyone with a gener

Provides a hands-on approach to making carbon fibers and their composites for those who need to use these materials. The book gives an excellent overview of the chemical and physical properties of carbon fibers and their composites. In addition, common test and analysis methods for demonstrating these properties are presented.

Provides a sophisticated insight into the development of the plastics industry in terms of digitalization and Industry 4.0. The background to these topics is discussed along with provision of the prerequisite knowledge regarding process complexity and modeling as well as data acquisition to build the foundation of data driven digital processes.

Prior extrusion books are based on barrel rotation physics. This is the first book that focuses on the actual physics of the process - screw rotation physics. In the first nine chapters, theories and maths models are developed. Then, these models are used to solve actual commercial problems in the remainder of the book.

Introduces the fundamentals of rheology and rheometry as the basis for modelling and computer-aided design in plastics processing. The logically structured content enables the reader to intelligently use the tools of computer-aided design and modelling of plastics processing, with correct interpretation of the results.