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Technical Books


Li, B.:
Compared Experimental and Theoretical Investigations of Forming Technical Parameters in Shape Rolling with Example of the Hot Rolling of Angle Steels
TU Bergakademie Freiberg, Freiberg, Germany, 1996 (in German)
ISBN 3-86012-029-8

Introduction: This book is intended to discuss the possibility to apply FEM simulation technique to Modern shape rolling practice. Information on local material flow is vital for shape rolling to improve homogeneity of microstructure, to reduce roll wear, etc. In this point, FEM is a powerful and economical way to provide metal flow information. FEM is also an effective way to predict rolled section geometry, load and power requirement, etc. Chapter 1 provides a short introduction. Chapter 2 mainly discusses metal flow, especially local metal flow involved in shape rolling, with example of three typical shape rolling processes. Chapter 3 studies current progress in the FEM simulation in shape rolling. Chapter 4 - 10 deal with the capability of the FEM in predicting various forming parameters, development of FEM technique in this area. Predicted results, including local metal flow, are validated by measurement in rolling test. Several shape rolling processes were analyzed. A useful simplified FEM model was introduced.

Contents

1. Introduction

2. Forming Technical problems in Shape Rolling

2.1 Theoretical fundamentals
2.2 Rolling and Roll pass Design for Shape Rolling

2.2.1 Production of Angle Steels
2.2.2 Production of U-Steels
2.2.3 Rolling for I-beams

2.3 Development Tendency in Shape Rolling
2.4 Experimental determination of local Metal Flow

3. FEM Simulation of Forming process

3.1 Development progress and Fundamentals
3.2 The Aim and Possibility of the FEM Simulation
3.3 Prerequisites for the FEM Simulation

3.3.1 Material laws and material data
3.3.2 Boundary Conditions
3.3.3 FEM programs for Hot Rolling

3.4 Introduction of Selected FEM Models for Groove Rolling

4. Hot Rolling Tests

4.1 Flat Rolling tests
4.2 Angle Steel rolling tests

4.2.1 Specimen Production
4.2.2 Rolling

4.3 Evaluation of the Angle Steel rolling tests

5. FEM Analysis

5.1 Analysis Program
5.2 Material Data and Boundary Condition
5.3 Further Input Data

6. Results of the FEM Analysis

7. Possibility of FEM Simulation of Shape Rolling Process with Simplified Models

8. Comparison of the FEM Analysis with the Rolling Tests

9. Transferability of the developed FEM Models to Other Shape Rolling Processes

10. Summary and Conclusion

List of Figures
References
List of Formula Symbols

 

 


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Bingji (Benjamin) Li 2009. All rights reserved.