| Course Unit Code | 346-5002/01 |
|---|
| Number of ECTS Credits Allocated | 6 ECTS credits |
|---|
| Type of Course Unit * | Compulsory |
|---|
| Level of Course Unit * | Second Cycle |
|---|
| Year of Study * | First Year |
|---|
| Semester when the Course Unit is delivered | Winter Semester |
|---|
| Mode of Delivery | Face-to-face |
|---|
| Language of Instruction | Czech |
|---|
| Prerequisites and Co-Requisites | There are no prerequisites or co-requisites for this course unit |
|---|
| Name of Lecturer(s) | Personal ID | Name |
|---|
| CEP77 | prof. Ing. Robert Čep, Ph.D. |
| KRA49 | Ing. Jiří Kratochvíl, Ph.D. |
| HAJ0058 | Ing. Jiří Hajnyš, Ph.D. |
| Summary |
|---|
| The theory includes an analysis of cutting mechanism study the formation of chips dynamic cutting process and the associated stability assessment of cutting process. This subject includes the bases of integreated machining, too. |
| Learning Outcomes of the Course Unit |
|---|
| Students will be familiarized with the theory of machining. This subject includes an analysis study of chip forming, of power ratios, of cutting process stability, of thermal effects, of the wear edge of tools, of durability, tool life of materials, and of the optimisation of cutting process. |
| Course Contents |
|---|
1. Basic concepts, technological system, workpiece, tool, instrument geometry, process and cutting methods.
2. Mechanism and scheme of chip formation, stress and deformation conditions before cutting wedge, deformation in the cutting zone, types and classification of chips
3. Strength and cutting resistance of cutting, work and machining performance, calculation of cutting forces
4. Wear cutting edge wear, wear mechanisms and types, wear criteria, tool life and durability
5. Taylor\'s relationship, methods of detecting T-vc dependencies
6. Heat and cutting temperature, temperature field, heat dissipation, heat balance and machining demands
7. Stability of the cutting process, self, forced and self-induced oscillation
8. Machinability and cutting, distribution, long-term and short-term tests, obturation norms
9. Integrity of machined surface, dimensional and shape accuracy of the part, macro and microscopic surface assessment
10. Machined surface integrity, surface layer characteristics, surface roughness, residual stress on the machined surface, experimental assessment of machined surface
11. Optimization of cutting conditions 1. (according to machine performance and torque, with regard to the strength of the tool and chip formation, according to the precision and quality of the machined surface, according to machinability, cutting and environment
12. Optimization of cutting conditions 2. (areas of permissible solutions, procedure for determining optimal cutting conditions, calculation of optimum edge durability, view of maximum production and minimum cost, adaptive optimization)
13. Theory of high-speed machining
14. Reliability, diagnostics and monitoring of the cutting process |
| Recommended or Required Reading |
|---|
| Required Reading: |
|---|
ČEP, Robert; SADÍLEK, Marek. Technology of Machining and CAM Systems. Ostrava : Ediční středisko VŠB – TU Ostrava, 2011, 122 s.
STEPHENSON, D. A.; AGAPIOU. J. S. Metal cutting theory and practice. New York : Marcel Dekker, Inc., 1997. ISBN 0–8247–9579–2.
SHAW, Milton C. Metal Cutting Principles. 2nd edition. New York : Oxford University Press, 2005. 651. p. ISBN 0–19–514206–3. |
BRYCHTA, Josef; ČEP, Robert; SADÍLEK, Marek; PETŘKOVSKÁ, Lenka; NOVÁKOVÁ, Jana. Nové směry v progresivním obrábění. Ostrava: VŠB – TU Ostrava, 2007 Dostupné na http://www.elearn.vsb.cz/archivcd/FS/NSPO. ISBN 978-80-248-1505-3.
BRYCHTA, Josef; SADÍLEK, Marek; ČEP, Robert; PETRŮ, Jana. Progresivní metody v obrábění. Ostrava : Ediční středisko VŠB – TU Ostrava, 2011, 144 s. ISBN 978-80-248-2513-7. Dostupné na: http://projekty.fs.vsb.cz/019/dokumenty/Progresivni_metody_v_obrabeni_FINAL.pdf
NELUŠAN, Miroslav; TUREK, Stanislav; BRYCHTA, Josef; ČEP, Robert (25%); TABAČEK, Marián. Experimentálne metódy v trieskovom obrábaní. Žilina : EDIS Žilina, 2007. 343 s. ISBN 978–80–8070–711–8.
ČEP, Robert; SADÍLEK, Marek. Technology of Machining and CAM Systems. Ostrava : Ediční středisko VŠB – TU Ostrava, 2011, 122 s. |
| Recommended Reading: |
|---|
SANDVIK Coromant, Technical Editorial Deartment. Modern Metal Cutting – A Practical Handbook. Tofrers Tryckery AB, Sweden, 1994, 927 p. ISBN 91-972290-0-3.
KALPAKJIAN, Serope. Manufacturing Engineering and Technology. Third Edition. Addison – Wesley Publishing Company, Reading, Massachusetts, 1995, 1239 p. ISBN 0-201-84552-0.
|
BRYCHTA, Josef; CZÁN, Andrej; ČEP, Robert; KRATOCHVÍL, Jiří; PETRŮ, Jana; SADÍLEK, Marek; STANČEKOVÁ, Dana; ZLÁMAL, Tomáš. Progresivní technologie v obrábění a NC programování obráběcích strojů. Ostrava : Ediční středisko VŠB – TU Ostrava, 2014, 170 s. ISBN 978-80-248-3522-8. Dostupné na: http://projekty.fs.vsb.cz/064/docs/obrabeni.pdf
VASILKO, Karol. Analytická teória trieskového obrábania. Prešov : COFIN Prešov, 2007. 338 s. ISBN 978–80–8073–759–7.
HUMÁR, A. Materiály pro řezné nástroje. Brno : MM Publishing Praha, 2008, 235 s. ISBN 978–80–254–2250–2.
BRYCHTA, Josef; ČEP, Robert; NESLUŠAN, Miroslav; TUREK, Stanislav; TABAČEK, Marián. Experimentálne metódy v trieskovom obrábaní. Žilina : EDIS Žilina, 2007. 343 s. ISBN 978–80–8070–711–8. |
| Planned learning activities and teaching methods |
|---|
| Lectures, Tutorials |
| Assesment methods and criteria |
|---|
| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
|---|
| Credit and Examination | Credit and Examination | 100 (100) | 51 |
| Credit | Credit | 35 (35) | 20 |
| Semestrální projekt | Semestral project | 15 | 10 |
| Test 1 | Written test | 10 | 5 |
| Test 2 | Written test | 10 | 5 |
| Examination | Examination | 65 (65) | 31 |
| Písemná část zkoušky | Written examination | 40 | 20 |
| Ústní část zkoušky | Oral examination | 25 | 11 |