| Course Unit Code | 346-0521/03 |
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| Number of ECTS Credits Allocated | 4 ECTS credits |
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| Type of Course Unit * | Choice-compulsory |
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| Level of Course Unit * | Second Cycle |
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| Year of Study * | First Year |
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| Semester when the Course Unit is delivered | Summer Semester |
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| Mode of Delivery | Face-to-face |
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| Language of Instruction | Czech |
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| Prerequisites and Co-Requisites | Course succeeds to compulsory courses of previous semester |
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| Name of Lecturer(s) | Personal ID | Name |
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| KRA49 | Ing. Jiří Kratochvíl, Ph.D. |
| Summary |
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Experimental and special machining methods Continuation of Theory of machining, design and production tools, design and manufacture of products and CAM systems in the machining experiments implementing practical measurement on machine tools designed for the purpose of measuring apparatuses and utilities. Students receive both theoretical interpretation of the individual tasks and their practical implementation in the laboratory department 346, including processing results in the form of programs. Include special methods of production gear and products, and multi-axis machining and vysokorychglostní.
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| Learning Outcomes of the Course Unit |
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| After completing this course you will be able to actively use the physical fundamentals of machining for measuring important machining parameters such as cutting force, rustiness, machinability, heat and temperature, etc. Further processing then operate the new and modern production methods and gear you will be acquainted with the progressive methods of machining Such as HSC, HFCs and construction machinery and tools for these technologies. |
| Course Contents |
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Syllabus of lectures:
1. Introductory lecture,
2. chip, the chip upsetting factor.
3. Metallographic studies completed changes in the cutting zone and evaluate the root chips.
4. Sources of heat and energy balance.
5. Measurement of temperature during machining.
6. Measurement tool wear.
Marking the seventh workability and machinability long-term exams.
8. Short-term tests of machinability.
9. Measurement of forces during machining.
1.9 Indirect measurement of forces during machining and calibration of load cells.
2.9 Direct measurement of the forces during machining.
10th vibration during machining.
11th Stiffness technological system.
12th Study of the machined surface.
1.12 Residual surface tension after machining.
2.12 Influence of cutting parameters on theoretical and actual surface roughness.
13th Effective deep drilling.
14. Excursion.
Exercises outline:
1. Introduction. Organisational issues. Work safety in laboratories.
2. Obtaining and studying root chips.
3. Determining factor upsetting chips.
4. Measuring the temperature of processing with Thermo.
5. Measurement of temperature of processing with pyrometer and a thermal imager.
Sixth tool wear evaluation using the micrometric method.
7. Determination characteristics of reference material for the determination of workability and machinability of the material determination.
8th Calibration dynamometer.
9. Measurement of cutting forces using strain gauge dynamometer.
10. Measurement of forces cut through piezoelectric dynamometer.
11th load characteristic spindle rigidity system vibration.
12th Effective deep drilling.
13. Test
14. Evaluation exercises and writing credits. |
| Recommended or Required Reading |
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| Required Reading: |
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[1] PETŘKOVSKÁ, L.; PETRŮ, J. Engineering Metrology and Assembly. Ostrava : VŠB-Technická univerzita Ostrava, 2012, p. 57.
[2] ČEP, R.; SADÍLEK, M. Machining Technology and CAM Systems. Ostrava : VŠB-Technická univerzita Ostrava, 2012.
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MRKVICA, I. Speciální technologie Výroba ozubených kol I, Ostrava: VŠB-TU Ostrava, 2009,101 s. ISBN 978-80-248-1931-0.
MRKVICA, I. Speciální technologie Výroba ozubených kol II, Ostrava: VŠB-TU Ostrava, 2009, 125 s. ISBN 978-80-248-2134-4.
MRKVICA, M. Konstrukce a výroba ozubených kol, VŠ-TU Ostrava, 1986, 215 s.
ČEP, Robert; PETRŮ, Jana. Experimentální metody v obrábění. Ostrava : VŠB-TU Ostrava, 2011. ISBN 978–80–248–2533–5. - http://projekty.fs.vsb.cz/459/?ucebni-opory.
NESLUŠAN, Miroslav; TUREK, Stanislav; BRYCHTA, Josef; ČEP, Robert; TABAČEK, Marián. Experimentálne metódy v trieskovom obrábaní. Žilina : EDIS Žilina, 2007. 343 s. ISBN 978–80–8070–711–8.
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| Recommended Reading: |
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| [1] STAHL, J-E. METAL CUTTING – Theories and models. Sweden : Division of Production and Materials Engineering. Lund University Sweden, 2012. 580 s. ISBN 978-91-637-1336-1. |
BÉKÉS, J. Kreatika a kreativita - tvorba produktů. Soubor autorových tezí 22 s.
KOCMAN, Karel. Speciální technologie obrábění. Brno: PC-DIR Real, s.r.o., Brno, 1993, ISBN 80-214-1187-2, s. 213.
BRYCHTA, J. Výrobní stroje obráběcí. Ostrava : VŠB-TU Ostrava, 2003. ISBN 80-248-0237-6. 150 s.
MÁDL, Jan. Experimentální metody v teorii obrábění. Praha : ČVUT Praha, 1988, IV. vydání. 153 s.
SOUČEK, P. a BUBÁK, A. Vysoce dynamické pohony posuvů obráběcích
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| Planned learning activities and teaching methods |
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| Lectures, Tutorials, Experimental work in labs |
| Assesment methods and criteria |
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| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
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| Graded credit | Graded credit | 100 (100) | 51 |
| Test | Written test | 40 | 15 |
| 1.prog | Laboratory work | 10 | 2 |
| 2.prog | Laboratory work | 10 | 2 |
| 3.prog | Laboratory work | 10 | 2 |
| 4.prog | Laboratory work | 10 | 2 |
| 5.prog | Laboratory work | 10 | 2 |
| 6.prog | Laboratory work | 10 | 2 |