| Statuss(Aktīvs) | Izdruka | Arhīvs(0) | Studiju plāns Vecais plāns | Kursu katalogs | Vēsture |
| Course title | CNC Machine Tools |
| Course code | MašZ3037 |
| Credit points (ECTS) | 4.5 |
| Total Hours in Course | 121.5 |
| Number of hours for lectures | 8 |
| Number of hours for seminars and practical classes | 32 |
| Number of hours for laboratory classes | 8 |
| Independent study hours | 72 |
| Date of course confirmation | 27/02/2018 |
| Responsible Unit | Institute of Engineering and Energetics |
| Course developers | |
| Dr. sc. ing., doc. Jānis Lāceklis-Bertmanis |
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| Prior knowledge | |
| MašZ3036, Metal Processing Technology and Design I MašZ4058, Metal Processing Technology and Design II MatZ4012, Material Science (Construction Materials) |
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| Replaced course | |
| MmehB001 [GMMEB001] CNC Machine Tools |
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| Course abstract | |
| The course aims is to provide the theoretical knowledges and practical skills in the management of a set of numerical control machine tools, cutting mode selection of the coordinate reference systems and zero points, CNC control programs. | |
| Learning outcomes and their assessment | |
| 1.Knowledge of the importance of job security in working with CNC workbench – practical works;
2.Manages numerical control workbench management principles - practical work; 3.Able to develop CNC machining programs and to make out parts - Test No 1. and practical works; 4.Is able to evaluate the advantages and disadvantages of the developed CNC machine tool management programs - practical work; 5.Is able to develop a CNC control programmers and practically make a component. – Test No 2. |
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| Course Content(Calendar) | |
| Full time intramural studies:
LECTURES: 1.Safety at work with CNC machine tools. Work safety warning signs on their importance and positioning on CNC machine. Coordinate axes and reference systems – 1 hour; 2.The contents of the CNC program, the origin of the workpiece, origin point – 1 hour; 3.The importance of G and M codes for the development of a digital control program – 1 hour; 4.Creation of lines, drills and contours. Use of basic cycles – 1 hour; 5.Test – The meaning of the G and M codes – 1 hour; 6.Simulated program and program correction - 1 hour; 7.Preparation of machine tools and accessories for digital control CNC for work. Preparation of a digital-controlled CNC machine-tool for a technological process – 1 hour; 8.Test – Creation of a processing program for the given detail – 1 hour. PRACTICAL WORKS: 1.Location of work safety warning signs on workbenches – 3 hours; 2.Coordinate systems on CNC machine – 4 hours; 3.Origin selection on CNC machine – 5 hours. 4.Development of processing program – 5 hours; 5.Create a CNC programming codes – 5 hours; 6.Parts making with CNC milling machine – 5 hours; 7.Parts making with CNC lathe – 5 hours. LABORATORY WORKS: 1.CNC workbench control panel – 3 hours; 2.Subprograms of processing program – 3 hours; 3.Use of processing cycles – 2 hours. Part time extramural studies: All topics specified for full time studies are accomplished, but the number of contact hours is one half of the number specified in the calendar |
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| Requirements for awarding credit points | |
| Test type - test with mark. The final test task consists of a test on the theoretical subjects acquired during the study course. All tests, homework must be carried out. | |
| Description of the organization and tasks of students’ independent work | |
| Preparation for tests and practical works – 42 hours.
Homework: To create a CNC processing program for a given part - 30hours. |
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| Criteria for Evaluating Learning Outcomes | |
| Students who have at least assessment 6 in this course of study. The final examination test may not write, and the test rating is compared with the test assessment. | |
| Compulsory reading | |
| 1. Avotiņš J. Metālapstrāde. Jelgava: LLU, 2009. 400 lpp. 2. Programming Workbook. HAAS AUTOMATION, INC.2800 Sturgis Rd. Oxnard, CA 93030. June 2006. 400 p. [tiešsaiste] [skatīts 05.02.2018.] Pieejams: https://www.ise.ncsu.edu/processes/wp-content/uploads/sites/11/2013/08/LatheProgrammingWorkbook-xlwb.pdf 3. Smid P. CNC Programming Handbook: A Comprehensive Guide to Practical CNC Programming. Edition 3. Industrial Press, Inc., 2007. 600 p. 2003. gada izdevums: [tiešsaiste] [skatīts 05.02.2018.] Pieejams: https://books.google.lv/books?id=JNnQ8r5merMC&lpg=PA1&ots=P_NIKQ5OtQ&lr&pg=PR20#v=onepage&q&f=false | |
| Further reading | |
| 1. Avotiņš J. Metālapstrāde: kursa darbs "Tehnoloģisko procesu izstrāde": metodiskie norādījumi. Jelgava: LLU, 2005. 90 lpp. 2. Сафин В.Н. Основы программирования фрезерных станков ЧПУ: учобное пособие к лабораторным работам. Челябинск: Издателский центр ЮУрГУ, 2012. 34 с. [tiešsaiste] [skatīts 05.02.2018.] Pieejams: http://docplayer.ru/44935780-Osnovy-programmirovaniya-frezernyh-stankov-s-chpu.html 3. CNC Programming Handbook. 3rd edition. New York, NY, USA: Industrial Press, Inc., 2007. | |
| Periodicals and other sources | |
| 1. Journal of Process Mechanical Engineering Proceedings of the Institution of Mechanical Engineers. Part E: Journal of Process Mechanical Engineering. Published by Sage Publications. ISSN (printed): 0954-4089. ISSN (electronic): 2041-3009. | |
| Notes | |
| Obligatory for students of the bachelor of professional higher education program “Design and Crafts” for full and part time students. | |