Mathematical and Physical Simulation of the Properties of Hot Rolled Products - L. Cser, J.G. Lenard, Maciej Pietrzyk

Mathematical and Physical Simulation of the Properties of Hot Rolled Products (eBook)

L. Cser, J.G. Lenard, Maciej Pietrzyk (Autoren)

eBook Download: PDF | EPUB

1999 | 1. Auflage
376 Seiten
Elsevier Science (Verlag)
978-0-08-052568-6 (ISBN)

In nine detailed chapters, the authors cover topics including: &bull, steel as a major contributor to the economic wealth of a country in terms of its capabilities and production &bull, current concerns of major steel producers &bull, phenomena contributing to the quality of the product &bull, information concerning the boundary conditions of the rolling process and initial conditions, put to use by mathematical models &bull, the solid state incremental approach and flow formulation &bull, parameters and variables - most of which make use of the exponential nature of phenomena that are activated by thermal energy &bull, the application of three dimensional analysis to shape rolling &bull, the evaluation of parameters by a form of inverse analysis to the flat rolling process &bull, knowledge based modeling, using artificial intelligence, expert systems and neural networks

They conclude that when either mathematical or physical modeling of the rolling process is considered and the aim is to satisfy the demands for customers, it is possible to produce what the customer wants, exactly.

The objective of this publication is to comprehensively discuss the possibilities of producing steels with pre-determined attributes, demanded by the customer to fit exacting specifications. The information presented in the book has been designed to indicate the reasons for the expenses and to aid in the process of overcoming the difficulties and reducing the costs. In nine detailed chapters, the authors cover topics including: * steel as a major contributor to the economic wealth of a country in terms of its capabilities and production * current concerns of major steel producers * phenomena contributing to the quality of the product * information concerning the boundary conditions of the rolling process and initial conditions, put to use by mathematical models * the solid state incremental approach and flow formulation * parameters and variables - most of which make use of the exponential nature of phenomena that are activated by thermal energy * the application of three dimensional analysis to shape rolling * the evaluation of parameters by a form of inverse analysis to the flat rolling process * knowledge based modeling, using artificial intelligence, expert systems and neural networks They conclude that when either mathematical or physical modeling of the rolling process is considered and the aim is to satisfy the demands for customers, it is possible to produce what the customer wants, exactly.

Front Cover 1
Mathematical and Physical Simulation of the Properties of Hot Rolled Products 4
Copyright Page 5
Table of Contents 8
Chapter 1. Introduction 14
1.1 Steel Production 15
1.2 Future Changes of Personnel 17
1.3 Competition from Other Materials 17
1.4 Current Concerns 18
1.5 The Rolling Process 20
1.6 Improvements of the Rolling Process 22
1.7 The Contents of the Book 22
Chapter 2. Tribology of Flat Rolling and The Boundary Conditions 24
2.1 The Tribological System 25
2.2 Interactions at the Surface of Contact 27
2.3 The Dependence of Interfacial Phenomena on Process and Material Parameters 49
2.4 Roll Wear 57
2.5 Case Studies 60
2.6 Boundary Conditions 72
Chapter 3. The Resistance of The Material to Deformation 74
3.1 Tension, Torsion and Compression Testing 74
3.2 Potential Problems Encountered During Mechanical Testing 76
3.3 Representation of True Stress-True Strain Curves 79
3.4 Case Studies 93
Chapter 4. One-Dimensional Modeling of The Flat Rolling Process 98
4.1 Free-Body Diagram of the Roll-Strip System 99
4.2 An Empirical Model 101
4.3 The Traditional Models - Orowan, Sims, Bland and Ford 103
4.4 Refinements of the Orowan Model 106
4.5 A Model with No Friction Hill 108
4.6 Sensitivity of the Roll Force and the Torque to Some of the Parameters 111
4.7 The Predictive Ability of the One-Dimensional Models 114
Chapter 5. The Finite-Element Method in Metal Forming 118
5.1 Rigid-Plastic Finite-Element Approach 119
5.2 Elasto-Plastic Finite-Element Model 124
5.3 Heat Transfer 132
5.4 Case Studies 145
Chapter 6. Microstructure Evolution and Mechanical Properties of The Final Product 164
6.1 Conventional Microstructure Evolution Models 166
6.2 Properties at Room Temperature 181
6.3 Substantiation of Thermal-Mechanical-Microstructural Models 190
6.4 The Internal Variable Method 220
6.5 Case Studies - Industrial Applications 238
Chapter 7. Shape Rolling 250
7.1 Generalized Plane Strain Approach 250
7.2 Case Studies 253
Chapter 8. Parameter Evaluation in Metal Forming 266
8.1 Parameter Evaluation - The Inverse Analysis 267
8.2 Optimization Techniques 269
8.3 Case Studies 279
Chapter 9. Knowledge Based Modeling 292
9.1 Knowledge in Hot Rolling 292
9.2 Knowledge Acquisition 293
9.3 Numerical Data for Decision-Making 297
9.4 Data and Data Mining in Hot Rolling 301
9.5 Numerical Data Covering the Gaps in Knowledge 306
9.6 Case Studies 309
Chapter 10. Conclusion 332
References 342
Author Index 366
Subject Index 370

Erscheint lt. Verlag	5.7.1999
Sprache	englisch
Themenwelt	Informatik ► Grafik / Design ► Digitale Bildverarbeitung
	Mathematik / Informatik ► Informatik ► Theorie / Studium
	Mathematik / Informatik ► Mathematik ► Angewandte Mathematik
	Technik ► Maschinenbau
ISBN-10	0-08-052568-7 / 0080525687
ISBN-13	978-0-08-052568-6 / 9780080525686

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