| Course Unit Code | 480-4028/01 |
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| Number of ECTS Credits Allocated | 5 ECTS credits |
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| Type of Course Unit * | Choice-compulsory type A |
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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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| HLA57 | prof. Ing. Libor Hlaváč, Ph.D. |
| POL142 | Ing. Lucie Gembalová, Ph.D. |
| Summary |
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| The aim of the course is to acquaint students with theoretical and experimental ways of describing typical features left by the traces of flexible jets on the material, ways of compensating and simulating these compensations. The main benefit should be to familiarize students with the negative features of working with flexible tools, to learn how to predict their size according to the type of material, its dimensions, the speed of material processing and other factors. The student should learn whether a theoretical or experimental approach is appropriate to solve the problem, whether the necessary precision can be achieved by the use of compensation, or whether the flexible tool is inappropriate in application due to the impossibility of executing the required precision, enormous costs, environmental damage, etc. |
| Learning Outcomes of the Course Unit |
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Student characterises physical relations leading to the flexible tool trajectory curvature inside material.
Student is able to formulate rules using physical equations that he analyses.
Student predicts parameters of tool necessary for interaction with material. |
| Course Contents |
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1. Analysis of physical reasons for changes of flexible tool trajectory direction during penetration through material.
2. Physical description of jet trajectory using material and tool properties.
3. Determination of the key parameters influencing trajectory of the given tool type (laser, plasma, liquid jet).
4. Determination of the two basic deviations of the trajectory by penetration of the tool through material – divergence and delay.
5. Determination of the necessary compensations from theoretical models of tool operation.
6. Determination of compensations according to experimental results, determination of typical shapes for calculations of compensations.
7. Analysis of the relation of compensations on machining factors - dynamic modes of changes. |
| Recommended or Required Reading |
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| Required Reading: |
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Hlaváč, L., Vašek, J.: Physical Model of High Energy Liquid Jet for Cutting Rock. International Journal of Water Jet Technology. Gloucester, vol. 2, no. 1, ISWJT, Canada, 1994, p. 39-50. ISSN 1180-0402
Hlaváč, L.M., Jančárek, A., Kušnerová, M., Mádr, V., Martinec, P.: Vicinage of the laser beam impact zone in rocks. Proceedings of SPIE, vol. 5445, 2004, p. 372-375. ISSN 0277-786X, ISBN 0-8194-5368-4
Hlaváč, L.M., Palička, P.: Testing of parameters for turning by abrasive water jet. In Water Jetting, BHR Group, United Kingdom, 2006, p. 123-128. ISBN 1-85598-080-0
Hlaváč, L.M.: Investigation of the Abrasive Water Jet Trajectory Curvature inside the Kerf. Journal of Materials Processing Technology, (doi:10.1016/j.jmatprotec.2008.10. 009) 209(8), 2009, p. 4154-4161. ISSN 0924-013 |
Hlaváč, L., Vašek, J.: Physical Model of High Energy Liquid Jet for Cutting Rock. International Journal of Water Jet Technology. Gloucester, vol. 2, no. 1, ISWJT, Canada, 1994, p. 39-50. ISSN 1180-0402
Hlaváč, L.M., Jančárek, A., Kušnerová, M., Mádr, V., Martinec, P.: Vicinage of the laser beam impact zone in rocks. Proceedings of SPIE, vol. 5445, 2004, p. 372-375. ISSN 0277-786X, ISBN 0-8194-5368-4
Hlaváč, L.M., Palička, P.: Testing of parameters for turning by abrasive water jet. In Water Jetting, BHR Group, United Kingdom, 2006, p. 123-128. ISBN 1-85598-080-0
Hlaváč, L.M.: Investigation of the Abrasive Water Jet Trajectory Curvature inside the Kerf. Journal of Materials Processing Technology, (doi:10.1016/j.jmatprotec.2008.10. 009) 209(8), 2009, p. 4154-4161. ISSN 0924-013 |
| Recommended Reading: |
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Hlaváčová, I.M., Hlaváč, L.M., Gembalová, L., Matýsek, D.: Propagation of the abrasive water jet in free air and through material. In: 19th International Conference on Water Jetting, P. Longman (ed.), BHR Group, United Kingdom, 2008, p. 21-30. ISBN 978-1-85598-104-1
Hlaváč, L.M., Hlaváčová, I.M., Gembalová, L., Kaličinský, J., Fabian, S., Měšťánek, J., Kmec, J., Mádr, V.: Experimental Method for Investigation of the Abrasive Water Jet Cutting Quality. Journal of Materials Processing Technology, (doi:10.1016/j.jmatprotec. 2009.04.011) 209(20), 2009, p. 6190-6195. ISSN 0924-0136
Hlaváč, L.M., Hlaváčová, I.M., Gembalová, L., Jonšta, P.: Experimental investigation of depth dependent kerf width in abrasive water cutting. In: 20th International Conference on Water Jetting, F.H. Trieb (ed.), BHR Group, United Kingdom, 2010, p. 459-467. ISBN 978-1-85598-121-8 |
Hlaváčová, I.M., Hlaváč, L.M., Gembalová, L., Matýsek, D.: Propagation of the abrasive water jet in free air and through material. In: 19th International Conference on Water Jetting, P. Longman (ed.), BHR Group, United Kingdom, 2008, p. 21-30. ISBN 978-1-85598-104-1
Hlaváč, L.M., Hlaváčová, I.M., Gembalová, L., Kaličinský, J., Fabian, S., Měšťánek, J., Kmec, J., Mádr, V.: Experimental Method for Investigation of the Abrasive Water Jet Cutting Quality. Journal of Materials Processing Technology, (doi:10.1016/j.jmatprotec. 2009.04.011) 209(20), 2009, p. 6190-6195. ISSN 0924-0136
Hlaváč, L.M., Hlaváčová, I.M., Gembalová, L., Jonšta, P.: Experimental investigation of depth dependent kerf width in abrasive water cutting. In: 20th International Conference on Water Jetting, F.H. Trieb (ed.), BHR Group, United Kingdom, 2010, p. 459-467. ISBN 978-1-85598-121-8 |
| Planned learning activities and teaching methods |
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| Lectures, Seminars |
| 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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| Credit and Examination | Credit and Examination | 100 (100) | 51 |
| Credit | Credit | 33 | 17 |
| Examination | Examination | 67 | 18 |