| Course Unit Code | 346-5004/01 |
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| Number of ECTS Credits Allocated | 4 ECTS credits |
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| Type of Course Unit * | Choice-compulsory type B |
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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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| Special and experimental technologies build on the subject of machining theory. When theoretical knowledge is verified by experiments that are subsequently processed as projects. The topics include the analysis of the mechanism of the creation of the creation of the creation, the measurement of machining forces, the measurement of vibration during machining, the temperature measurement, as well as determining the machinability of the material. |
| Learning Outcomes of the Course Unit |
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| Experimental and special machining methods Continuation of Theory of machining, design and production tools 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. |
| 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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PETŘKOVSKÁ, L.; PETRŮ, J. Engineering Metrology and Assembly. Ostrava : VŠB-Technická univerzita Ostrava, 2012, p. 57.
ČEP, R.; SADÍLEK, M. Machining Technology and CAM Systems. Ostrava : VŠB-Technická univerzita Ostrava, 2012. |
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.
CHIILDS, T., MAEKAWA, K., OBIKAWA, T., YAMANE, Y. Metal Machining - Theory and applications. 1. vyd. London: ARNOLD, 2000. 408 s. ISBN 0-340-69159-X. |
| Recommended Reading: |
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PETŘKOVSKÁ, L.; PETRŮ, J. Engineering Metrology and Assembly. Ostrava : VŠB-Technická univerzita Ostrava, 2012, p. 57.
ČEP, R.; SADÍLEK, M. Machining Technology and CAM Systems. Ostrava : VŠB-Technická univerzita Ostrava, 2012. |
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. |
| 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 |
| Pr.1 | Project | 10 | 5 |
| Pr.2 | Project | 10 | 5 |
| Pr.3 | Project | 10 | 5 |
| Pr.4 | Project | 10 | 5 |
| Pr.5 | Project | 10 | 5 |
| Pr.6 | Project | 10 | 5 |
| Test | Written test | 40 | 21 |