Metal Forming

Mechanics and Metallurgy
Author: William F. Hosford,Robert M. Caddell
Publisher: Cambridge University Press
ISBN: 113949743X
Category: Technology & Engineering
Page: N.A
View: 9601

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This book helps the engineer understand the principles of metal forming and analyze forming problems - both the mechanics of forming processes and how the properties of metals interact with the processes. In this fourth edition, an entire chapter has been devoted to forming limit diagrams and various aspects of stamping and another on other sheet forming operations. Sheet testing is covered in a separate chapter. Coverage of sheet metal properties has been expanded. Interesting end-of-chapter notes have been added throughout, as well as references. More than 200 end-of-chapter problems are also included.

Mechanics of Sheet Metal Forming


Author: Z. Marciniak,J. L. Duncan,S. J. Hu
Publisher: Butterworth-Heinemann
ISBN: 9780750653008
Category: Mathematics
Page: 211
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Material properties -- Sheet deformation processes -- Deformation of sheet in plane stress -- Simplified stamping analysis -- Load instability and tearing -- Bending of sheet -- Simplified analysis of circular shells -- Cylindrical deep drawing -- Stretching circular shells -- Combined bending and tension of sheet -- Hydroforming.

Microstructure Evolution in Metal Forming Processes


Author: J Lin,D Balint,M Pietrzyk
Publisher: Elsevier
ISBN: 0857096346
Category: Technology & Engineering
Page: 416
View: 3812

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Monitoring and control of microstructure evolution in metal processing is essential in developing the right properties in a metal. Microstructure evolution in metal forming processes summarises the wealth of recent research on the mechanisms, modelling and control of microstructure evolution during metal forming processes. Part one reviews the general principles involved in understanding and controlling microstructure evolution in metal forming. Techniques for modelling microstructure and optimising processes are explored, along with recrystallisation, grain growth, and severe plastic deformation. Microstructure evolution in the processing of steel is the focus of part two, which reviews the modelling of phase transformations in steel, unified constitutive equations and work hardening in microalloyed steels. Part three examines microstructure evolution in the processing of other metals, including ageing behaviour in the processing of aluminium and microstructure control in processing nickel, titanium and other special alloys. With its distinguished editors and international team of expert contributors, Microstructure evolution in metal forming processes is an invaluable reference tool for metal processors and those using steels and other metals, as well as an essential guide for academics and students involved in fundamental metal research. Summarises the wealth of recent research on the mechanisms, modelling and control of microstructure evolution during metal forming processes Comprehensively discusses microstructure evolution in the processing of steel and reviews the modelling of phase transformations in steel, unified constitutive equations and work hardening in microalloyed steels Examines microstructure evolution in the processing of other materials, including ageing behaviour in the processing of aluminium

Sheet Metal Forming Processes and Die Design


Author: Vukota Boljanovic
Publisher: Industrial Press Inc.
ISBN: 9780831131821
Category: Technology & Engineering
Page: 219
View: 2391

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By an engineer with decades of practical manufacturing experience, this book is a complete modern guide to sheet metal forming processes and die design – still the most commonly used methodology for the mass-production manufacture of aircraft, automobiles, and complex high-precision parts. It illustrates several different approaches to this intricate field by taking the reader through the “hows” and “whys” of product analysis, as well as the techniques for blanking, punching, bending, deep drawing, stretching, material economy, strip design, movement of metal during stamping, and tooling. While concentrating on simple, applicable engineering methods rather than complex numerical techniques, this practical reference makes it easier for readers to understand the subject by using numerous illustrations, tables, and charts. Emphasizes the influence of materials as an aid to understanding manufacturing processes and operations. Features the essential mathematical formulas and calculations needed for various die operations and performance evaluation. Shows the comparative advantages and liabilities for each manufacturing process and operation. Offers a complete picture of the knowledge and skills needed for the effective design of dies for sheet-metal forming processes highlighted with illustrative examples. Provides properties and typical applications of selected tool and die materials for various die parts.

Elementary mechanics of plastic flow in metal forming


Author: Samuel H. Talbert,Betzalel Avitzur
Publisher: Wiley
ISBN: 9780471960034
Category: Crafts & Hobbies
Page: 388
View: 2896

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Metal forming plasticity is an advanced subject of intensive current research relevant to both materials science and mechanical engineering. It is used for the analysis and modelling of fabrication processes such as forging, extrusion, rolling, wire, and tube drawing. The fundamentals of flow mechanics are explained here before they are applied in a variety of machine-tool design engineering situations. These fundamentals form the basis of all engineering analyses of the plastic flow in metal forming and are essential to all students of engineering. Worked examples showing the variety of metal forming situations and approximately 200 end-of-chapter problems are also included.

Applied Metal Forming

Including FEM Analysis
Author: Henry S. Valberg
Publisher: Cambridge University Press
ISBN: 1316175413
Category: Technology & Engineering
Page: N.A
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Applied Metal Forming: Including FEM Analysis describes metal forming theory and how experimental techniques can be used to study any metal forming operation with great accuracy. For each primary class of processes, such as forging, rolling, extrusion, wiredrawing, and sheet-metal forming, it explains how FEA (Finite Element Analysis) can be applied with great precision to characterize the forming condition and in this way optimize the processes. FEA has made it possible to build very realistic FEM-models of any metal forming process, including complex three-dimensional forming operations, in which complex products are shaped by complex dies. Thus, using FEA it is now possible to visualize any metal forming process and to study strain, stresses, and other forming conditions inside the parts being manufactured as they develop throughout the process.

Metal forming

fundamentals and applications
Author: Taylan Altan,Soo-Ik Oh,H. L. Gegel
Publisher: Asm Intl
ISBN: 9780871701671
Category: Crafts & Hobbies
Page: 353
View: 6976

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Metal Forming

Technology and Process Modelling
Author: Dixit, Uday S.,Narayanan , R. Ganesh
Publisher: Tata McGraw-Hill Education
ISBN: 1259058689
Category: Deformations (Mechanics)
Page: 592
View: 5991

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˜This book covers fundamental aspects and recent technological developments in the area: from fundamentals of plasticity, friction in metal forming, and metal extrusion to forming process optimization, sheet metal forming, flange wrinkling in deep drawing, formability of tailor welded blanks, and much more.˜ One of the most important manufacturing processes, metal forming is essential˜ for engineers working in the manufacturing and related sectors.˜ This book covers fundamental aspects and recent technological developments in the area: from fundamentals of plasticity, friction in metal forming, and metal extrusion to forming process optimazion, sheet metal forming, flange wrinkling in deep drawing, formability of tailor welded blanks, and much more. Some of the highlights of this book: ?Cover fundamentals of advanced topics in bulk and sheet metal forming ?Chapters written by experts from the academia and the industry ?Chapters equipped with detailed references for further exploration ?Gradual progression from fundamental to advanced topics

Mechanical Behavior of Materials


Author: William F. Hosford
Publisher: Cambridge University Press
ISBN: 0521195691
Category: Science
Page: 419
View: 8200

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This is a textbook on the mechanical behavior of materials for mechanical and materials engineering. It emphasizes quantitative problem solving. This new edition includes treatment of the effects of texture on properties and microstructure in Chapter 7, a new chapter (12) on discontinuous and inhomogeneous deformation, and treatment of foams in Chapter 21.

Physical Metallurgy


Author: William F. Hosford
Publisher: CRC Press
ISBN: 9780824724214
Category: Technology & Engineering
Page: 520
View: 8694

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For students ready to advance in their study of metals, Physical Metallurgy combines theoretical concepts, real alloy systems, processing procedures, and examples of real-world applications. The author uses his experience in teaching physical metallurgy at the University of Michigan to convey this topic with greater depth and detail than most introductory materials courses offer. The book follows its introduction of metals with topics that are common to all metals, including solidification, diffusion, surfaces, solid solutions, intermediate phases, dislocations, annealing, and phase transformations. Other chapters focus on specific nonferrous alloy systems and their significant metallurgical properties and applications, the treatment of steels includes separate chapters on iron-carbon alloys, hardening, tempering and surface treatment, special steels and low carbon sheet steel, followed by a separate chapter on cast irons. Concluding chapters treat powder metallurgy, corrosion, welding and magnetic alloys. There are appendices on microstructural analysis, stereographic projection, and the Miller-Bravais system for hexagonal crystals. These chapters cover ternary phase diagrams, diffusion in multiphase systems, the thermodynamic basis for phase diagrams, stacking faults and hydrogen embrittlement. Physical Metallurgy uses engaging historical and contemporary examples that relate to the applications of concepts in each chapter. With ample references and sample problems throughout, this text is a superb tool for any advanced materials science course.

Mechanical Metallurgy


Author: George E. Dieter, Jr.
Publisher: CreateSpace
ISBN: 9781502528636
Category: Technology & Engineering
Page: 640
View: 3251

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A study on the behavior and response of metals to applied forces.

TECHNOLOGY OF METAL FORMING PROCESSES


Author: SURENDER KUMAR
Publisher: PHI Learning Pvt. Ltd.
ISBN: 8120334256
Category: Technology & Engineering
Page: 376
View: 8207

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This comprehensive text presents the subject of metalworking by offering a clear account of the theory and applications of metal forming processes relevant to engineering practice. It is designed to serve as a textbook for undergraduate and postgraduate students of mechanical engineering, production engineering, industrial engineering, and metallurgical engineering. The first seven chapters are devoted to basic concepts to equip the students with the background material on mechanics, material sciences and to provide them with a sound foundation in the theory of plasticity. In addition, the importance of friction and lubrication in metal forming processes is adequately highlighted. In the next nine chapters the reader is exposed to a richly detailed discussion of specific forming processes (including the lubricated metal forming processes) and new and powerful techniques are presented (load bounding and slip line field) for solving engineering problems in metal forming. The book then moves on to forming of polymers and also covers metal powder preforms, highlighting recent developments. In the concluding portions of the book, the important factors such as force, power requirements, formability and machinability in the study of individual processes, are briefly discussed. Finally, the application of computer-aided analysis in the metalworking processes has been demonstrated, being the demand in this competitive scenario. Several chapter-end exercises are included to aid better understanding of the theory.

Theory of Metal Forming Plasticity

Classical and Advanced Topics
Author: Andrzej Sluzalec
Publisher: Springer Science & Business Media
ISBN: 3662104490
Category: Technology & Engineering
Page: 278
View: 7190

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The intention of this book is to reveal and discuss some aspects of the metal fo- ing plasticity theory. The modern theory describes deformation of metallic bodies in cold and hot regimes under combined thermal and mechanical loadings. Th- mal and deformation fields appear in metal forming in various forms. A thermal field influences the material properties, modifies the extent of plastic zones, etc. and the deformation of metallic body induces changes in temperature distribution. The thermal effects in metal forming plasticity can be studied at two levels, - pending on whether uncoupled or coupled theories of thermo-plastic response have to be applied. A majority of metal forming processes can be satisfactorily studied within an uncoupled theory. In such an approach the temperature enters the stress-strain relation through the material constants and through the thermal dilatation. The description of thermo-plastic deformation in metal forming is c- ried out on the ground of thermodynamics.

Metal Forming Science and Practice

A State-of-the-Art Volume in Honour of Professor J.A. Schey's 80th Birthday
Author: J.G. Lenard
Publisher: Elsevier
ISBN: 9780080536316
Category: Technology & Engineering
Page: 378
View: 3684

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This publication has been written to honour the contribution to science and education made by the Distinguished Professor Emeritus Professor Schey on his eightieth birthday. The contributors to his book are among the countless researchers who have read, studied and learned from Professor Schey's work, which includes books, research monographs, invited papers, keynote papers, scientific journals and conferences. The topics include manufacturing, sheet and bulk metal forming and tribology, amongst others. The topics included in this book include: John Schey and value-added manufacturing; Surface finish and friction in cold-metal rolling; Direct observation of interface for tribology in metal forming; An examination of the coefficient of friction; Studies on micro plasto hydrodynamic lubrication in metal forming; Numerical simulation of sheet metal forming; Geometric and mechanics model of sheet forming; Modelling and optimisation of metal forming processes; The mathematical modelling of hot rolling steel; Identification of rheological and tribological parameters; Oxide behaviour in hot rolling; Friction, lubrication and surface response in wire drawing; and Modelling and control of temper rolling and skin pass rolling.

Mechanics of Sheet Metal Forming

Material Behavior and Deformation Analysis
Author: D. Koistinen
Publisher: Springer Science & Business Media
ISBN: 1461328802
Category: Technology & Engineering
Page: 416
View: 3344

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This volume records the proceedings of an international symposium on "ME CHANICS OF SHEET METAL FORMING: Material Behavior and Deformation Analysis." It was sponsored and held at the General Motors Research Labora tories on October 17-18, 1977. This symposium was the twenty-first in an annual series. The objective of this symposium was to discuss the research frontiers in experimental and theoretical methods of sheet metal forming analysis and, also, to determine directions of future research to advance technology that would be useful in metal stamping plants. Metal deformation analyses which provide guide lines for metal flanging are already in use. Moreover, recent advances in computer techniques for solving plastic flow equations and in measurements of material parameters are leading to dynamic models of many stamping operations. These models would accurately predict the stresses and strains in the sheet as a function of punch travel. They would provide the engineer with the knowledge he needs to improve die designs. The symposium papers were organized into five sessions: the state of the art, constitutive relations of sheet metal, role of friction, sheet metal formability, and deformation analysis of stamping operations. We believe this volume not only summarizes the various viewpoints at the time of the symposium, but also pro vides an outlook for materials and mechanics research in the future.

Principles of Metal Manufacturing Processes


Author: J. Beddoes,M. Bibby
Publisher: Butterworth-Heinemann
ISBN: 0080539556
Category: Technology & Engineering
Page: 326
View: 3191

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Metals are still the most widely used structural materials in the manufacture of products and structures. Their properties are extremely dependent on the processes they undergo to form the final product. Successful manufacturing therefore depends on a detailed knowledge of the processing of the materials involved. This highly illustrated book provides that knowledge. Metal processing is a technical subject requiring a quantitative approach. This book illustrates this approach with real case studies derived from industry. Real industrial case studies Quantitative approach Challenging student problems

Metal Forming and the Finite-Element Method


Author: the late Shiro Kobayashi,Soo-Ik Oh,Taylan Altan
Publisher: Oxford University Press
ISBN: 9780195364576
Category: Computers
Page: 402
View: 4976

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The application of computer-aided design and manufacturing techniques is becoming essential in modern metal-forming technology. Thus process modeling for the determination of deformation mechanics has been a major concern in research . In light of these developments, the finite element method--a technique by which an object is decomposed into pieces and treated as isolated, interacting sections--has steadily assumed increased importance. This volume addresses advances in modern metal-forming technology, computer-aided design and engineering, and the finite element method.

Fundamentals of Engineering Plasticity


Author: William F. Hosford
Publisher: Cambridge University Press
ISBN: 1107037557
Category: Science
Page: 267
View: 8997

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This book is ideal for those involved in designing sheet metal forming processes. Knowledge of plasticity is essential for the computer simulation of metal forming processes, and understanding the advances in plasticity theory is key to formulating sound analyses. In this book, William Hosford makes the subjects simple by avoiding notations used by specialists in mechanics. R. Hill's authoritative book, Mathematical Theory of Plasticity (1950), presented a comprehensive treatment of continuum plasticity theory up to that time; although much of the treatment in this book covers the same ground, it focuses on more practical topics. Hosford has also included recent developments in continuum theory, including a newer treatment of anisotropy that has resulted from calculations of yielding based on crystallography, analysis of the role of defects, and forming limit diagrams. This text also puts a much greater emphasis on deformation mechanisms, and includes chapters on slip and dislocation theory and twinning.

Sheet Metal Forming Processes

Constitutive Modelling and Numerical Simulation
Author: Dorel Banabic
Publisher: Springer Science & Business Media
ISBN: 3540881131
Category: Technology & Engineering
Page: 301
View: 3833

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The concept of virtual manufacturing has been developed in order to increase the industrial performances, being one of the most ef cient ways of reducing the m- ufacturing times and improving the quality of the products. Numerical simulation of metal forming processes, as a component of the virtual manufacturing process, has a very important contribution to the reduction of the lead time. The nite element method is currently the most widely used numerical procedure for s- ulating sheet metal forming processes. The accuracy of the simulation programs used in industry is in uenced by the constitutive models and the forming limit curves models incorporated in their structure. From the above discussion, we can distinguish a very strong connection between virtual manufacturing as a general concept, ?nite element method as a numerical analysis instrument and constitutive laws,aswellas forming limit curves as a speci city of the sheet metal forming processes. Consequently, the material modeling is strategic when models of reality have to be built. The book gives a synthetic presentation of the research performed in the eld of sheet metal forming simulation during more than 20 years by the members of three international teams: the Research Centre on Sheet Metal Forming—CERTETA (Technical University of Cluj-Napoca, Romania); AutoForm Company from Zürich, Switzerland and VOLVO automotive company from Sweden. The rst chapter presents an overview of different Finite Element (FE) formu- tions used for sheet metal forming simulation, now and in the past.