Course detail
Theory of Metal-forming
FSI-HTA Acad. year: 2026/2027 Summer semester
Supervisor
Department
Learning outcomes of the course unit
Prerequisites
Planned learning activities and teaching methods
Assesment methods and criteria linked to learning outcomes
Language of instruction
Czech
Aims
The main objective of the course is to provide students with the theoretical foundations and methodology necessary for solving metal-forming technologies on the principles of plastic deformation and theory of plasticity. Students will acquire knowledge necessary for a creative and complex engineering solution of the technologies of metal-forming processes.
The course offers students the knowledge necessary for simplified mathematical representation of forming processes while applying the physical, chemical, mechanical and thermodynamic principles of metallic bodies changing from the elastic into the plastic state, and when these bodies are plastically deformed into the required shape. Students will learn how to determine the loading of the forming tool or machine, and how to determine the critical values of deformation.
Specification of controlled education, way of implementation and compensation for absences
The study programmes with the given course
Programme N-STG-P: Manufacturing Technology, Master's
branch STG: Manufacturing Technology, 6 credits, compulsory
Programme N-STG-P: Manufacturing Technology, Master's
branch STM: Manufacturing Technology and Management in Industry, 6 credits, compulsory-optional
Type of course unit
Lecture
26 hours, optionally
Syllabus
1. Physical substance of plastic deformation. Formability of metals and alloys.
2. Resistance to deformation, effect of basic parameters. Deformation work and force.
3. Summary of the fundamentals of mathematical theory of plasticity. Partial theories.
4. Conditions of the appearance of plastic deformation. Analysis of the deformation process.
5. Analytical and analytical-experimental methods for solving metal-forming processes.
6. Upsetting between parallel planes, the Siebel and the Unksov solutions.
7. Forward extrusion, stress and strain analysis.
8. Backward extrusion, solution after Dipper, Sachs and Siebel.
9. Die forging, solution after Tomlen, Gubkin, Gelei and Storozhev
10. Bending of thin bars and wide bands.
11. Deep drawing, stress and strain, calculation after Sachs and Sofman.
12. Method of resistance to deformation. Theory of small elastic-plastic deformations.
13. State of stress in free and closed shear and in precise shearing.
Laboratory exercise
26 hours, compulsory
Syllabus
1. Problems of the physical substance of plastic deformation, demonstrations, report.
2.Evaluation of the parameters of deformation, deformation rate, report.
3.Calculation of main and effective stress, graphic interpretation, report.
4.Evaluation of resistance to deformation curves obtained from experiments.
5.Calculation of resistance to deformation and forces in upsetting, report.
6.Stress and forces in forward extrusion, report.
7.Stress and forces in backward extrusion, report.
8.Die forging, calculation of forging forces, report.
9.Calculation of bending forces and springing-back, report.
10.Stress, forces and number of drawing operations, report.
11.Evaluation of stress and strain on a drawn part, report.
12.Stress in current and precise shearing, report.
13.Conclusion of exercises, discussion of reports. Course-unit credit.