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Principles and Applications of Metal Rolling /
Rolling is an important metal forming process which involves the passing of metal stock through a pair of rollers. It is categorized depending on the recrystallization temperature of the metal rolled. This book covers the entire gamut of rolling technology in one volume. It begins with a brief histo...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Cambridge :
Cambridge University Press,
2016.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Principles and Applications of Metal Rolling; Title; Copyright; Dedication; Contents; List of Figures; List of Tables; List of Symbols; Preface; Acknowledgments; CHAPTER 1: Introduction to Rolling Process; 1.1 Definition of Rolling Process; 1.2 Hot and Cold Rolling Processes; 1.2.1 Hot rolling; 1.2.2 Cold rolling; 1.3 Brief History of Rolling; 1.3.1 The early history; 1.3.2 Modern steel rolling plants; 1.3.3 Modern non-ferrous rolling plants; 1.3.4 Modern cold rolling facilities; 1.4 Deformation of Materials; 1.4.1 Elastic and plastic deformation; 1.4.2 Size effect and strain hardening.
- 1.4.3 Mechanical working and recrystallization1.4.4 Hot and cold rolling and recrystallization; 1.5 Classification of Rolling Mills and Rolling Stands; 1.5.1 Classification; 1.5.2 Rolling mill stands; 1.5.3 Roll arrangement in mill stands; 1.5.3.1 Stands with horizontal rolls; Two-high stand; Three-high (3-Hi) stand; Double-duo stand; Four-high (4-Hi) Stand; Six-high cluster mill stand; Multi-roll stand; Planetary Mill Stand; 1.5.3.2 Stands with vertical rolls; 1.5.3.3 Stands with Inclined Rolls; 1.5.3.4 Other mill stands; References; CHAPTER 2: Mechanics of Rolling.
- 2.1 Characteristics of Rolling2.1.1 Draught and reduction; 2.1.2 Elongation; 2.1.3 Spread; 2.1.4 Contact angle, angle of bite and area of contact; 2.1.5 Rolling friction; 2.1.6 Neutral point and forward slip; 2.1.7 Forward slip and effective working diameter in grooved rolls; 2.1.8 Pitch line and rolling line; 2.1.9 Grooved rolls and passes; Open and closed passes; End thrust; Types of passes; 2.1.10 Spread in section rolling; (a) Siebel's formula; (b) Sedlaczek formula; (c) Ekelund formula[1]; (d) Hill Formula[1]; (e) Bhakhtinov Formula.
- 2.1.11 Elastic deformation of components vis-à-vis set roll gap2.1.12 Roll flattening; 2.1.13 Dark mode rolling; 2.1.14 Roll bending and roll camber; 2.1.15 Pass schedule; 2.2 Stresses in Rolling; 2.2.1 Distribution of stress and strain across rolled strip thickness; 2.2.2 Contact stresses in two-dimensional deformation; 2.2.3 Specific pressure in the case of slip with a constant coefficient of friction (dry friction); 2.2.4 Contact stress under alternative theories of contact friction; 2.3 Rolling Force; 2.3.1 Direction of forces in simple rolling.
- 2.3.2 Determination of roll separating force(A) Determination of contact area; Effect of roll flattening on determination of contact area; (B) Determination of average pressure of rolling; (i) Effect of temperature of the metal; (ii) Effect of work hardening; (iii) Effect of strain rate; (i) Friction between the roll surfaces and roll material and their effect; (ii) Effect of tension applied to strip on rolling pressure; (iii) Effect of the width of the rolled strip on pressure; 2.3.3 Formulae for calculation of mean rolling pressure; (i) Ekelund's formula[5]; (ii) Geleji's formula*