633-0803/01 – Forming Technology (TETM)
| Gurantor department | Department of Materials Forming | Credits | 6 |
| Subject guarantor | doc. Ing. Richard Fabík, Ph.D. | Subject version guarantor | doc. Ing. Richard Fabík, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Choice-compulsory |
| Year | 1 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2004/2005 | Year of cancellation | 2020/2021 |
| Intended for the faculties | FMT | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Studen will be able to:
Describe technological procedures applied to cold forming processes
Classify input materials requirements
Calculate parameters of pickling bath
Design parameters of scale removal equipment
Design parameters of forming technology in consideration of quality characteristics of final products
Calculate machine pass of wire drawing machines
Explain theoretical principles of thermal treatment processes
Design parameters of thermal treatment technology in consideration of quality characteristics of final products
Explain principles of corrosion of steels
Explain theoretical principles of metal coating processes
Calculate descriptive characteristics of statistical file
Determine measurement uncertainty
Assess process capability
Teaching methods
Lectures
Tutorials
Experimental work in labs
Summary
Content of this subject are drawing and extrusion technologies together with surface adjustment before and after cold forming, thermal treatment and metal coating technologies.
Students will be introduced to theoretical background a technological applications of scale removing (pickling, drying, take on lubricant carrier, mechanical descaling) of forming (distribution of thermo-mechanical values during wire drawing and extrusion, basics of lubrication, lubricants characteristics, microstructure evolutions, drawing machines and other equipment), of thermal treatment (hardening – martenzite and bainite transformation, tempering, basic of thermal activating processes during tempering, annealing-transformation of austenite, basic of thermal activating processes during annealing) of metal coating (hot dip galvanizing, diagram FeZn, phases growth and their properties, methods for surface inspection, tinning, coppering, aluminizing).
Materials testing is a part of the subject (tensile test, bending and torsion test, wrapping test), statistic analysis of data (uncertainties of measuring, terminology, statistical set, numerical characteristics, regression analysis) a evaluating of processes reliability (normal distribution, histograms, control charts, indexes of capability).
Compulsory literature:
Recommended literature:
1. Wire Journal International. ISNN 0277 4275
Way of continuous check of knowledge in the course of semester
14th exercise – credit test, max. 30 points (min. for credit obtaining 20 points). Test may be repeated, but student can use all its projects for the first time only.
E-learning
E-learning materials in Czech language are attended. ()
For electronic communication with pedagogues make use of appropriate university e-mail addresses, which find here: http://telsez.vsb.cz/Phonebook.faces (In e-mail subject write abbreviation of course – TETM).
Other requirements
The theoretical readiness for exercises (will be randomly checked). Attendance at seminars min 80%.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures
1. Introduction (basic characteristics and classification of drawn wire (DW) production).
2. Quality requirements on rolled wire (RW) (New trends of steel making, evaluation of influence of selected characteristics of RW on characteristics of DW).
3. Descaling and surface treatment of RW before drawing (Rust and scale, pickling, hydrogen after pickling, mechanical descaling)
4. Principles of drawing (stress and strain in deformation zone, calculations of strain, drawing power a and work, temperature rising during drawing, deformation hardening of feritic and pearlitic steel, dynamic deformation aging, influence of technology on properties of DW).
5. Equipment for wire drawing (construction of wire drawing machines, machine pass of wire drawing machines, accessory equipment, dies).
6. Lubricants (lubricating system, friction mechanism, lubricants take on, classification of lubricants).
7. Thermal treatment (carbon in iron, diagram Fe-Fe3C, martenzite and bainite transformation, TT diagrams, tempering, annealing-transformation of austenite, basic of thermal activating processes during annealing, classification of annealing furnaces).
8. Patenting (austenitizing, austenite transformation, microstructure factors of pearlite, classification of patenting lines).
9. Metal coating of steel wire (corrosion of steel wire, hot dip galvanizing, microstructure of zinc coat, technology of hot dip galvanizing, electrolytic zinc coating, tinning, coppering, aluminizing).
10. Excursion
11. Testing of steel wire (static tensile test, bending and torsion test, non destructive testing, wire size testing, testing of parameters of zinc coat).
12. Terminology of statistic set (numerical characteristics, fractiles, regression analysis).
13. Distribution of random variables (discrete and continuous random variable, Gauss curve, histograms).
14. Evaluating of processes reliability (outliers, normal distribution check, indexes of capability).
Excercises
1. Calculation of ultimate tensile strength of RW (project Excel)
2. Calculation of pass schedule for wire drawing (project Excel)
3. Calculation of ultimate tensile strength after drawing (project Excel)
4. Machine pass of wire drawing machines (project Excel)
5. Machine pass of wire drawing machines (project Excel)
6. Mathematical modelling of thermal treatment of by software TTSteel
7. Simulation of Jominy hardenability test (project TTSteel)
8. Simulation of patenting (project TTSteel)
9. Technology of production selected type of wire (project)
10. Excursion
11. Descriptive statistics (project Excel)
12. Creating of histogram (project Excel)
13. Evaluating of processes reliability (project Excel)
14. Credit test
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction