633-0410/02 – Roll Pass Desing (KAL)
Gurantor department | Department of Materials Forming | Credits | 5 |
Subject guarantor | Ing. Tomáš Kubina, Ph.D. | Subject version guarantor | Ing. Tomáš Kubina, Ph.D. |
Study level | undergraduate or graduate | Requirement | Compulsory |
Year | 3 | Semester | summer |
| | Study language | Czech |
Year of introduction | 2012/2013 | Year of cancellation | 2020/2021 |
Intended for the faculties | FMT | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Student will be able to:
- list and describe the basic forms of roll grooves.
- identify the input and output parameters influencing the roll pass desing.
- solce the extension coefficient and contact area at rolling.
- choose the appropriate set of roll passes according to the resulting shapes.
Teaching methods
Lectures
Seminars
Individual consultations
Tutorials
Summary
The course closely follows the subject Rolling Technology. Solves the flow of metal at the longitudinal rolling in roll groove. Serves specialized knowledge of roll groove, roll pass design and characteristics of rolling shaped profiles.
Compulsory literature:
GINZBURG, V. B.: Steel-Rolling Technology : Theory and Practice. New York : Marcel Dekker, 1989.
LEE, Y.: Rod and Bar Rolling: Theory and Applications. New York : Marcel Dekker, 2004.
Recommended literature:
TRINKS, W.:Roll Pass Design, second edition, 2 volumes; Cleveland: Penton Pub. Co., 1933-1934
WUSATOWSKI, Z.: Fundamentals of rolling,Pergamon Press, 1969, 679 p.
Way of continuous check of knowledge in the course of semester
5 pointwise assessed reports
E-learning
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Other requirements
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Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
1. Roll groove, its parts, geometry, Roll desing of semi-finishing and preparative passes
2. Roll Design of pre-finish and finish passes - dimensional characteristics
3. Geometry of grooved roll, rotary dvojparaboloid
4. The upper pressure, lower pressure, the neutral axis of the roll groove
5. Rules for placement of groove on the roll, life of roll
6. The flow of material, unequal deformation in roll groove
7. The behavior of the roll at a load of rolling force, spread at roll pass desing
8. Contact area with the walls of roll
9. Roll pass desing - general laws
10. Basic at roll pass desing at rolling of I, U bars and rails, universal wide beams
11. Shaping of flat-rolled products in the production of bent sections, special cases of production
Exercise:
1. Construction of the basic extension roll passes
2. Technical drawing of the basic extension roll passes - report
3. Design of finish and pre-finish roll pass, coefficient of thermal expansion
4. Calculation of tip velocity, determine the working diameter of the cylinder, the upper and lower pressure
5. Computation of gravity centre for roll groove
6. Determination of unequal deformation - report
7. Determination of contact area by grafo-analytic method
8. Graphic determination of contact area - report
9. Rolling schedule on Roughing Mill - report
10. Roll pass desing during rolling of rod - report
11. Exkursion to long product mill
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction